Would i see any difference using a 2.0amp charger? - Xperia Tablet Z Q&A, Help & Troubleshooting

I noticed that the plug that comes with the xperia z tablet is only 1.5amp, most other phones etc i have had have always been 2amp, i am just wondering if i would get a faster charge if i bought a 2amp charger, or could i potentially damage the unit if it is only supposed to have 1.5?
thanks
James

james_lpool said:
I noticed that the plug that comes with the xperia z tablet is only 1.5amp, most other phones etc i have had have always been 2amp, i am just wondering if i would get a faster charge if i bought a 2amp charger, or could i potentially damage the unit if it is only supposed to have 1.5?
thanks
James
Click to expand...
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AFAIK, the XTZ com go up to 2.1A (iPad charger) without any problems...

Felimenta97 said:
AFAIK, the XTZ com go up to 2.1A (iPad charger) without any problems...
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Thank you very much, i've just ordered a 2.1ma charger, i really cant understand why sony released this tablet with a 1.5ma charger as it doesn't charge it as such if you are also using it, but a 2.1ma charger would, maybe they were just trying to save money lol

james_lpool said:
Thank you very much, i've just ordered a 2.1ma charger, i really cant understand why sony released this tablet with a 1.5ma charger as it doesn't charge it as such if you are also using it, but a 2.1ma charger would, maybe they were just trying to save money lol
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No, not to save money; instead, to help the battery have a long life. Batteries that are charged with an amperage higher than their design ampere limit will not to live as long as batteries charged at or below their design ampere limit. So, charging your tablet's battery with a 2100 mA charger instead of a 1500 mA charger (per Sony's design) will shorten the battery's life.

Cat McGowan said:
No, not to save money; instead, to help the battery have a long life. Batteries that are charged with an amperage higher than their design ampere limit will not to live as long as batteries charged at or below their design ampere limit. So, charging your tablet's battery with a 2100 mA charger instead of a 1500 mA charger (per Sony's design) will shorten the battery's life.
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Makes sense. Though I believe XTZ is 1.8 A, not 1.5A. The dock is 1.8A, so yeah...
Sent from my SGP311 using Tapatalk

Felimenta97 said:
Makes sense. Though I believe XTZ is 1.8 A, not 1.5A. The dock is 1.8A, so yeah...
Sent from my SGP311 using Tapatalk
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The dock's 1.8 Ampere rating is a typical-of-industry safety rating of 20% higher than the charger's 1.5 Ampere rating.

Cat McGowan said:
The dock's 1.8 Ampere rating is a typical-of-industry safety rating of 20% higher than the charger's 1.5 Ampere rating.
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I see... Well, for some reason, 1.8A is stuck in my head, but no problem...
My XTZ charges fairly quickly on the 1.5A provided. Less than 5 hours, I am sure (turned on, WiFi on)
Sent from my SGP311 using Tapatalk

I have already ordered a 2.1ma charger now online and was listed on a site as compatible with this tablet, I'm a bit unsure about using it now though even though is was listed for it.

james_lpool said:
I have already ordered a 2.1ma charger now online and was listed on a site as compatible with this tablet, I'm a bit unsure about using it now though even though is was listed for it.
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Click to collapse
Devices will only use what they want, you cant force for example, 4amps down its throat by connecting a 4amp charger. I connected it right to my galaxy s4's 2.5amp charger.
If its max charge current is 1.8amp, it will take that and no more.
>not responsible if yours explodes or something

Several photos of 2,1A charger(compared with the original):
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charging time ~ 4,5hrs
View attachment 2450022

james_lpool said:
I have already ordered a 2.1ma charger now online and was listed on a site as compatible with this tablet, I'm a bit unsure about using it now though even though is was listed for it.
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Sites will always say they are compatible, as they wont your hard earn't cash.. But do you ever hear a manufacture, say it's ok to use a higher amp charger ??? No you don't.. Your better off picking up a portable charger that Sony recommend if your so worried about juice http://www.sony.co.uk/product/xperia-tablet-z/tab/editorialarticle2

Device will of course charge faster.
I don't expect it to have any measurable impact on tablet's battery life.
As with all chargers, voltage needs to be exact (or somewhere like 10% close - preferably 10% more not less), but amperage doesn't matter much as device will "suck" what it can anyway. Most chargers and devices nowadays have protection against "over"-whatever (overheating, overcharging etc.).

NLS said:
Device will of course charge faster.
I don't expect it to have any measurable impact on tablet's battery life.
As with all chargers, voltage needs to be exact (or somewhere like 10% close - preferably 10% more not less), but amperage doesn't matter much as device will "suck" what it can anyway. Most chargers and devices nowadays have protection against "over"-whatever (overheating, overcharging etc.).
Click to expand...
Click to collapse
Don't fool yourself mate just Google "fast charger kill battery" there's plenty of users complaints..

There are varied opinions on the charger capacity and how good they are vs the demerits of using higher capacity chargers on these forums. I found the following article very informative.
Most of us charge the device while in use, so that uses some current which explains why we cannot get a clear understanding of how Li-Ion battery works. Hopefully the article give some clearer understanding of how the charger works. It is not as simple as "Battery will only take what it needs." The Sony charger is designed for 1.5 Amp for a reason. As for the life of the batteries themselves, most of us may not notice it because by the time the life of battery becomes an issue, we would have changed the device ( That's my opinion, not a scientific fact
Unless the device itself has some current limiting circuit inside, the higher capacity charger is bound to pump more current into the device. I do not know for a fact if the Sony devices has some such limiting circuit.
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries

CountParadox said:
Devices will only use what they want, you cant force for example, 4amps down its throat by connecting a 4amp charger. I connected it right to my galaxy s4's 2.5amp charger.
If its max charge current is 1.8amp, it will take that and no more.
>not responsible if yours explodes or something
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Click to collapse
^^this.
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---------- Post added at 03:07 AM ---------- Previous post was at 03:05 AM ----------
You simply cannot 'pump more current' into a device. Electricity just doesn't work like that.
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technaudio said:
^^this.
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---------- Post added at 03:07 AM ---------- Previous post was at 03:05 AM ----------
You simply cannot 'pump more current' into a device. Electricity just doesn't work like that.
Sent from my SGP321 using Tapatalk
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Electricity just doesn't work like that ? yes in normal voltage sources. Here we are talking about the charging of the Li-Ion battery.
Actually there are constant current sources used to charge batteries. True, there are no ideal constant voltage or ideal constant current sources. But the issue of pumping more current into a device is still valid unless the device itself has current limiting circuits inside and limits it to 1.8 Amps as in the example above. What I said was I don't know for a fact that Sony has a limiter inside its tablet for the charging circuit. It may well have. I don't know that. Just because most sources ( including our household AC supply) are voltage sources does not mean all sources are voltage sources.. Please check the battery university link I posted above. They also show the charging characteristics of the battery..

Cat McGowan said:
No, not to save money; instead, to help the battery have a long life. Batteries that are charged with an amperage higher than their design ampere limit will not to live as long as batteries charged at or below their design ampere limit. So, charging your tablet's battery with a 2100 mA charger instead of a 1500 mA charger (per Sony's design) will shorten the battery's life.
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Click to collapse
i bought a power bank with two output of 1A and 2.1A, but some time my xperia charger with 1.5A output is not sufficient to charge my battery and give me not charging error...
So i was wonder due what you says, if i should use 2.1A output? and how much on battery life it may effect?

Yes you should.
Every battery charging circuit "pulls" as much amperage as needed to charge a battery.
It's not something that will destroy it.
The charger can give out up to 2.1A, but will actually give out as much as the charging circuit "asks" (note the quotes).
Battery will probably charge faster.
Now if this does affect battery life, yes in the long run it could, as most batteries "prefer" (extensive use of quotes I know) slower charging. It all depends on how smart the charging circuit is and Sony has a good track record for their smart batteries (unlike Samsung for example - which I hope they fixed with non-removable S6 battery - but that's off topic).

Related

Battery charger?

Hey guys wanted to know where I can find a rapid battery charger. I'm currently using Anker Battery Expert but it takes around 5 or more hours to fully charge a battery. Would love to find a charger that could charge my battery within an hour!!!
klee2000 said:
Hey guys wanted to know where I can find a rapid battery charger. I'm currently using Anker Battery Expert but it takes around 5 or more hours to fully charge a battery. Would love to find a charger that could charge my battery within an hour!!!
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Click to collapse
You can get a 2amp charger but the kernel must support fast charging.
Even then i dont think full charge within an hour is possible.
Thanks for the respond.... But not to use with the phone only for the battery. I have a seperate charger for the extra battery but it feels like it takes forever. I do rate it over the phone charger though because if I fully charge the battery with my phone and I take it out and place it on the external charger it shows that It still have around 10 to 15min left to complete charging... I beleive it's correct because it seems to last longet than charging with the phone!!!!
klee2000 said:
Thanks for the respond.... But not to use with the phone only for the battery. I have a seperate charger for the extra battery but it feels like it takes forever. I do rate it over the phone charger though because if I fully charge the battery with my phone and I take it out and place it on the external charger it shows that It still have around 10 to 15min left to complete charging... I beleive it's correct because it seems to last longet than charging with the phone!!!!
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Not trying to revive this post, but noticed people are looking for a fast charger. I have a Touchpad and use the charger to charge my Note. It charges much faster than the OEM.
It is a 2+amp charger. It says 2amp on the label. I tried to charge my Touchpad on a Ipad charger (also 2amps) and the Touchpad said gave a warning saying it will take longer to charge. So I assume the Touchpad charger is 2.5amp. (max allowed for FCC)
Long story short, its on sale for only $4.99. Go get it!
http://www.shopping.hp.com/en_US/ho.../FB341AA?HP-TouchPad-Power-Charger&aoid=35252
deliriousbb said:
I have a Touchpad and use the charger to charge my Note. It charges much faster than the OEM.
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Click to collapse
Both the AC wall wart that comes with the Note (I assume that's what you mean by "the OEM") and the HP TouchPad AC charger will charge the Note at 1 A. One is not faster than the other.
It is a 2+amp charger. It says 2amp on the label. I tried to charge my Touchpad on a Ipad charger (also 2amps) and the Touchpad said gave a warning saying it will take longer to charge. So I assume the Touchpad charger is 2.5amp. (max allowed for FCC)
Click to expand...
Click to collapse
No, this is because the iPad charger is wired up to supply 2 A only via the proprietary iPad connector. If you connect it to a micro USB device (like the Touchpad or the Note), you will not get 2 A. You will probably only get 0.5 A, which is the USB standard. That causes the TP to display the warning you saw.
Thanks guys but I still didn't get the answer I was looking for. I'm looking for a universal wall charger that could charge batteries by itself but at a faster pace!!
aalupatti said:
You can get a 2amp charger but the kernel must support fast charging.
Even then i dont think full charge within an hour is possible.
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Click to collapse
Will it pullover one amp with a fast charging kernel?
Sent from my Nexus 7 using xda app-developers app
civicgsr19 said:
Will it pullover one amp with a fast charging kernel?
Sent from my Nexus 7 using xda app-developers app
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No. The Note (and most current Samsung hardware) is limited at just over 1A. I'm using a 3A charger with a change-only cable and my Note can only charge at ~1.1A according to CurrentWidget. Without charge-only cable it's half an amp at best.
btswein said:
No. The Note (and most current Samsung hardware) is limited at just over 1A. I'm using a 3A charger with a change-only cable and my Note can only charge at ~1.1A according to CurrentWidget. Without charge-only cable it's half an amp at best.
Click to expand...
Click to collapse
Hrm I'll have to test this. I have a prime and it's wall charger is rated at 2A,might charge the phone faster.
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
Well Charging seemed very quick but the CurrentWidget showed charging from 1A to 8A. Listed on their Google play page they say that Samsung probably isn't supported.
The electric current reading doesn't work on all devices. The reason is that the manufactures (mostly Motorola and Samsung) don't support this in the battery driver or in the hardware.
here's a couple screenshots
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Also Sorry for the large pics.
OP, I did some amazoning (new phrase, you like?) and here are a couple options I've found:
OEM Sammy charger: Dunno the charging speeds, but probably 1.1A like the chargers that come with our phones.
http://www.amazon.com/Samsung-Battery-Charger-2500mAh-Included/dp/B0076Z3FSQ/
Also there's this charger/dock:
It uses a 1A wall wart and here's the catch it's mentioned it charges both the phone and battery at the same time so it would split the power, I don't know if it'll shuffle the power around when only one battery needs a charge.
http://www.amazon.com/Hyperion-Samsung-Compatible-international-Packaging/dp/B006QBKTCG/
Long story short, the best you're probably going to get is a 1A charger, most aftermarket units I've seen are charging between 300mha to 400mha.
Theoriginalgiga said:
Hrm I'll have to test this. I have a prime and it's wall charger is rated at 2A,might charge the phone faster.
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
Well Charging seemed very quick but the CurrentWidget showed charging from 1A to 8A. Listed on their Google play page they say that Samsung probably isn't supported.
The electric current reading doesn't work on all devices. The reason is that the manufactures (mostly Motorola and Samsung) don't support this in the battery driver or in the hardware.
here's a couple screenshots
Also Sorry for the large pics.
OP, I did some amazoning (new phrase, you like?) and here are a couple options I've found:
OEM Sammy charger: Dunno the charging speeds, but probably 1.1A like the chargers that come with our phones.
http://www.amazon.com/Samsung-Battery-Charger-2500mAh-Included/dp/B0076Z3FSQ/
Also there's this charger/dock:
It uses a 1A wall wart and here's the catch it's mentioned it charges both the phone and battery at the same time so it would split the power, I don't know if it'll shuffle the power around when only one battery needs a charge.
http://www.amazon.com/Hyperion-Samsung-Compatible-international-Packaging/dp/B006QBKTCG/
Long story short, the best you're probably going to get is a 1A charger, most aftermarket units I've seen are charging between 300mha to 400mha.
Click to expand...
Click to collapse
I've never got off-the-wall amperage #'s like that on my OG Note. I know it's accurate because the Samsung OEM wall charger is 1amp and my phone shows 1100~mA when plugged in. It shows the same #'s when plugged in to my 3amp car charger with charge-only cable.
klee2000 said:
Hey guys wanted to know where I can find a rapid battery charger. I'm currently using Anker Battery Expert but it takes around 5 or more hours to fully charge a battery. Would love to find a charger that could charge my battery within an hour!!!
Click to expand...
Click to collapse
I have the eBay wall chargers for my extra battery's.. I wish there was something faster but unfortunately I haven't come across it.
Sent from my SAMSUNG-SGH-I717 using xda premium
My OEM battery charges in about 1 hr .....
RooT -[]D[][]V[][]D- BeeR
The OEM charger cannot charge in an hour... the battery is 2.5AH and the charger gives out 1amp
Ideally if the phone was off it would take 2.5 hours. (without calculating inefficiencies etc)
Amazon has a great deal...battery charger with (2) 2750 mah batteries for 18.00...ive been using this for a couple weeks and it works GREAT
Sent from my SAMSUNG-SGH-I717 using XDA Premium HD app
lowspeed said:
The OEM charger cannot charge in an hour... the battery is 2.5AH and the charger gives out 1amp
Ideally if the phone was off it would take 2.5 hours. (without calculating inefficiencies etc)
Click to expand...
Click to collapse
With fast charge enabled with kernel I use I charge in about a hr to hr and a half from about 10 to 15 percent ....yes its possible.
Sent from my SAMSUNG-SGH-I717 using xda app-developers app

Note charges faster with..

Note charges faster with Kindle fire's charger. Using white at&t i717 Note
Here is my find and situation. My Note was almost dead it was at 5%. Forgot charger at home and only available charger was from a Kindle Fire. Plugged it in. I know Note takes forever to charge so I thought ok Ill let it charge for about an hour it should put me at around 40%. About an hour later I checked phone and battery charge was at 87%. ???
Didnt believe it at first I thought OK maybe I was seeing sh*t and it really wasnt at 5%. Had to take off so didnt put too much thought into. Next day thought about it and said ok WHAT IF Kindle Fire's charger charges it faster. Completely drained battery til phone shut off. Plugged it in using Kindle's charger turned on Note, turned off data, background data, let it charge for exactly 30 minutes checked charge it was 39%. Unplugged it turned on data, background data and did some heavy usage to drain battery again til phone shut off. Plugged it in using the charger that came with Note, turned it on and again I turned off data/background data. Let it charge for 30 mins checked charge and it was at 14%.
So Im sharing my find and yes Kindle Fire's charger does charge it way faster and Im wondering if anyone else has tried/used the Fire's charger and has had the same result and if using the Fire's charger going to damage battery if I keep using it instead of charger that came with it?
I have used my Kindle Fire's charger since I got my Note. The current rating on the Fire's charger is higher at 1.8a as opposed to the stock 1.0a. However, the Notes charging circuit likely cannot draw 1.8a, the highest I have seen it go with some battery app displaying current was about 1.2a. So yes, it might charge slightly faster. The biggest benefit I see though is the lack of a need for separate chargers.
Sent from my SAMSUNG-SGH-I717 using XDA
I have been using my gtab 10.1 charger. Its rated at 2.0 amps and I can get a full charge from 10% in about 3 hours. Much faster than the 1.0 amp charge wart that came with the note, by about 2.5 hours.
EOS 2.0 @ MZ604 [XDA-HD]
Stock @ SGH-I717R [XDA-Premium]
Pretty sure the Note charges at 1A max. If you're charging faster, it means your other charger isn't providing 1A.
I have seen battery monitor widget display ~1150ma if it was in deep sleep and I quickly check it before it refreshes. It averages about 750ma if I'm using it while charging. This tapers off once it hits 80% or so when the charging tapers off. Battery Monitor Widget does say this is estimated. I would agree that the Note will never draw more than ~1.1a or so.
Sent from my SAMSUNG-SGH-I717 using XDA
arsonizt said:
Note charges faster with Kindle fire's charger. Using white at&t i717 Note
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Click to collapse
Thank you! Makes a huge difference...only thing that was bugging me about the phone was the slow charging...i was about to go crazy.
khaytsus said:
Pretty sure the Note charges at 1A max. If you're charging faster, it means your other charger isn't providing 1A.
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Click to collapse
False. The note can definitely handle more. I have also use a Gtab charger and it usually spiked around 1700mA
I currently use an Asus Transformer charger which is rated at 1.2A. I will say, I get about exactly that. 1281mA posted below
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I've had similar results with my HP TouchPad charger which is rated at 2A.
I use my iPad charger.. 2.1 A... seems faster as well. I hardly ever charge though since I bought the QCell battery charger and two extra batteries, so one is always at 100 percent.
I agree. I have used the Kindle Fire's charger on my note as well and it did charge much faster. I would bet that not all of the Samsung chargers that come with the Note are quality chargers.. The first one that originally came with my note would either charge very slowly, or flat out not charge at all. I would have to un-plug, and plug it back in to the wall a few times to get it to start.
AT$T game me a replacement charger after dealing with it for 2 weeks, and it has begun to have the same issue now after about 2 month use. If I use the SE charger that came with my Xperia X10 (750ma), I actually get a more stable charge than what the 1A Samsung charger gets. Albeit not any faster, but it doesn't just STOP charging out of the blue.
I think I will try buying a tablet charger, and stop using my Note's charger all together.
Does Kindle offer vehicle charger?
¢ via SGH-i717
You don't need a kindle charger to get the higher amp rating, just a higher rated charger. There are several vehicle chargers available that are able to charge at 1A or greater. You will likely want to find one designed for Android devices rather than iOS devices as iOS uses a different method to charge at higher amperage than most Android devices use. There are articles on modifying the charger but if you find a Kindle compatible charger online that may be a good bet.
I've bought both Kensington 2.1A and 3.1A but haven't attempted shorting middle pins or cable as discussed in other threads. I use ProClip mounts in my car, but wife didn't want one in her Highlander (our travel vehicle) so I bought Samsung's mount for Note and it cosistently charges 1.0-1.2A and outpaces GPS' drain
¢ via SGH-i717
slapshot591 said:
False. The note can definitely handle more. I have also use a Gtab charger and it usually spiked around 1700mA
I currently use an Asus Transformer charger which is rated at 1.2A. I will say, I get about exactly that. 1281mA posted below
Click to expand...
Click to collapse
What current measuring widget is that? I use "Current Widget" https://play.google.com/store/apps/details?id=com.manor.currentwidget&hl=en and I have never seen over 1003mA regardless if I use a 1A charger that I shorted D+ to D- on or my Touchpad charger that is capable of 2.1A. I wonder if Current Widget shows charging current and the one you use shows total system current?
mtucker said:
What current measuring widget is that? I use "Current Widget" https://play.google.com/store/apps/details?id=com.manor.currentwidget&hl=en and I have never seen over 1003mA regardless if I use a 1A charger that I shorted D+ to D- on or my Touchpad charger that is capable of 2.1A. I wonder if Current Widget shows charging current and the one you use shows total system current?
Click to expand...
Click to collapse
Using Battery Monitor Widget Pro, I've been using it since launch. It is actually measuring the current usage of the battery, either charging or discharging. I'm using this on an Anker 2700mAh battery and it does charge pretty quickly for me.
arsonizt said:
Note charges faster with Kindle fire's charger. Using white at&t i717 Note
Plugged it in using Kindle's charger turned on Note, turned off data, background data, let it charge for exactly 30 minutes checked charge it was 39%.
Click to expand...
Click to collapse
This would indicate that the power source you are using is between 1.8A and 2A.
Assuming your using the 2500 MaH battery:
1% = 25 MaH
30 minutes charge of 39% = 975 Mah
If this was accomplished in 30 minutes you would do 975 x 2 = 1950 MaH.
Given the above statistics, you would assume your phone was being charged by something with the output of 2A. I would defnitely run the terminal command on this to verify output though..
THANKS TO PJ_RAGE for already doing work on this subject....This is from his post a while back
"cat /sys/class/power_supply/battery/batt_current_adc
The reported number will be the charge current for your charger. Divide the number you receive by 10, and that is the mA. For example, if a USB charger reports "4851", divide by 10 and the charge current is 485.1mA. Note that this only reports charging current -- it cannot report the current drain, and will just report "0" when you try it without a charger connected.
If you're really still curious, you can see what type of charger the phone actually thinks is connected to your phone (ie, whether or not the phone thinks the data lines are shorted) by entering the following instead:
cat /sys/class/power_supply/battery/charging_source
The reported number should be a 0, 1, or 2. 0 = no charger connected, 1 = data lines NOT shorted, USB normal charge, and 2 = data lines ARE shorted, AC fast charge.
mtucker said:
What current measuring widget is that? I use "Current Widget" https://play.google.com/store/apps/details?id=com.manor.currentwidget&hl=en and I have never seen over 1003mA regardless if I use a 1A charger that I shorted D+ to D- on or my Touchpad charger that is capable of 2.1A. I wonder if Current Widget shows charging current and the one you use shows total system current?
Click to expand...
Click to collapse
I assume this widget sleeps if the device is asleep? I had a widget once that updated very 30 seconds and did it ON OR OFF.. ie: The phone was basically always awake because this stupid widget was updating itself every 30s regardless of the circumstances.
That said, my note seems to be awake 80% of the time anyway..
slapshot591 said:
False. The note can definitely handle more. I have also use a Gtab charger and it usually spiked around 1700mA
I currently use an Asus Transformer charger which is rated at 1.2A. I will say, I get about exactly that. 1281mA posted below
Click to expand...
Click to collapse
Is that LunarUI i'm seeing? How/where did you get that theme?
Let me post a few observations of my own as I have worked with LiOn technology through my work since it was invented.
This isn't my first go around with this technology.
One of my past employers actually invented smart LiON technology (successfully suing all the big computer makers for royality payments due to their patents) and my current employer is involved in producing the battery actually used in our specific ATT Note device. Believe it or not. Your choice. It's the truth.
1--Lithium Ion charging current is controlled by battery temperature. If the battery is hot, the device won't ALLOW it to charge rapidly -- if at all. This is for safety reasons. Charge too quickly you reduce life, or risk a rupture. Not good, especially for latter. In most cases, the LiON batteries contain a computer chip and a data bus to communicate back to the device. In other cases, the device simply uses voltage alone to make a rougher determination of what is going on inside in the cell. Since there are a variety of applications available for Android that supply a specific temp for the battery, I suspect the former is true in our case.
2--Lithium Ion charging current is reduced as the cell nears full charge; which is why it slows down when it gets nearly full. Of course, it can slow down when it gets hot. This is why when you plug it in, it may not charge right away. Discharge of the cell produces a temperature increase. Putting it on charge reduces the temp but not right away.
3--the supplied adapter from Samsung is "less than ideal" when the first two conditions allow greater current (charging). Using another adapter works much faster if it has > 1A capacity. I use a iPad (gasp) adapter and it REALLY charges fast with the right cable (my next point).
4--the supplied cable from Samsung (the one that allows it to talk to the computer) is "less than ideal" for charging. Go to the ATT store and buy the $10 USB-Micro USB cable they sell. It will SCREAM in comparision, assuming all of the first 3 conditions listed above are met.
Take this information as you see fit. I don't work for ATT, I'm only sharing my knowledge of the technology, explaining what people are seeing, and providing my recommendations based on my observations. Yes, I have used a jig and an amp meter to confirm all my results -- rather than some software application. I'm not saying the application is bad, just that I can tell you for sure how to tell how much current is being supplied/taken in a circuit. You measure it with an amp meter.. the old fashioned way.
Peace
If you havent read the post above mine, read it first. Very informative and all true. Everything I have to say expands on what was said above.
Ok, this is real simple folks, the USB STANDARDS state that the maximum power output is 2 amps. This means that ANY device that charges off a USB cable WILL charge at a maximum of 2 amps, period. You cannot make the amperage higher than 2 amps. This means there is no point in searching around for a 3 amp charger because the phone will NOT accept anything more than 2 amps and ANYTHING claiming more than 2 amps is simply lying.
Now, having said that, this also does NOT mean that you HAVE to charge at 2 amps, it means that the MAXIMUM amps that can be PROVIDED is 2 amps. The wall charger that comes with the Note is a 1.0 amp charger. This means you can find a different wall charger that outputs 2 amps and effectively HALF your charge time.
The other factor to take into consideration is phone usage. The processor does consume some power when the phone is on. Additionally, Android charges the battery by dumping high current into the battery until its at around 80% and slowly reduces the current as the battery capacity reaches higher levels. So even tho a 2 amp charger should charge the phone in about an hour and a half, it really is closer to two and a half hours.
So the last point I want to make is, it does NOT matter what charger you have, the charging process is completely software controlled. The charger just puts out power at a constant rate. All lithium ion devices have the same charging scheme that has been pretty much standardized. While there are some very minor differences, YOU dont need to worry about the technical side of it, this is what the software was written to handle.
I highly recommend looking at the battery university website and if you can afford it, purchasing their book for the skinny on everything you need to know about batteries and how they work.
+1 for Battery Monitor Widget Pro (by 3C). Its an expensive app at around $4 but gives you EVERYTHING you could possibly want to know about what is going on with your phones power including drain, charge rate, current battery condition, VERY detailed logging, HIGHLY customizable widget, etc. Just look at the screenshots in the appstore (make sure you are looking for the one by 3C as there are several apps with the same name). Oh, and did I mention, it uses less than 1% of battery power per charge cycle to monitor all of this?
System Tuner Pro by 3C is also very nice.

is it ok to leave the phone plugged in overnight?

not sure if this is good for the battery to leave it plugged into the charger when it's at 100%..
i been told before that these new devices it's ok to leave it plugged in...but i don't have a good feeling about this lol
it'd be great if someone can please chime in on this.
thanks all!
Yes it is OK. The charging circuitry will switch to a trickle charger when battery is almost fully charged.
Sent from my MB865 using xda app-developers app
I've been leaving phones plugged in overnight for about a decade and nothing has ever gone wrong:victory:
nickkyboy36 said:
I've been leaving phones plugged in overnight for about a decade and nothing has ever gone wrong:victory:
Click to expand...
Click to collapse
Me too
Sent from my GT-I9300 using xda premium
Done that every night for the pass 3yrs. Never have any issue.
Sent from my GT-I9300 using xda app-developers app
Except battery's going to wear out fast? That's what she said.
No because they're lithium iron batteries.
I believe they are different to older phones/batteries
Sent from my GT-I9300 using xda premium
the charging system is getting more and more intelligent...no reason to worry about that anymore
Just keep your batteries with more than 20-30% charge as much as possible.
Sent from my GT-I9300 using xda app-developers app
I leave my phone charged to 100% almost all the time:
- when I am at work I leave it plugged to the USB port
- when I am working at home, the phone is connected to the USB port
- when I am driving the phone is connected to the vehicular charger
- when I go to bed, if the phone is below 70%, I leave it plugged on the wall charger overnight.
Yet, when I am on long bike rides and the 3G+ data + GPS + synch are enabled, I still get excellent battery times.
Over charging any battery isn't very good for it, it's the same with laptops and well pretty much anything, so long as power is coming in the battery will take it, even if it is at a slower rate.
Ideally you would want it to charge to 100% and then a little bit more, maybe 20 mins, to make sure.
However i know we don't live in an ideal world and charging it overnight is the only thing that can be done by most users.
In my work we have a lot of phones plugged in all the time (all brands) and they have some strange effects happening, eg: Unresponsive touchscreen (removing the charger solves this), Poor battery life, glitchy screen etc.
Saying that, all of our phones are plugged in all of the time so it is an extreme situation.
If your worried about it then get a timed plug so it only charges for a few hours and then cuts off.
But you should be fine otherwise.
Just feel the charger when the phone's at 100% and it's giving off a f**k load of heat because the phone isn't actually taking anymore charge and the charger turns the reduced MAH it draws into heat in the charger, so just don't worry about it because the phone does all the work for you and can't go over a full charge.
My phone stops charging at 100%.
Sent from my GT-I9300 using Tapatalk 2
Instead of creating a new thread, I'd like to steer the ci bvr station towards what charger is it OK to use.
For the ones who know their stuff, can I use any USB charger or must I use only the Samsung charger that cane with the S3?
I remember reading the circuity that allows a proper charge is specific to Samsung chargers.
Sent from my GT-I9300 using xda app-developers app
RF12 said:
Instead of creating a new thread, I'd like to steer the ci bvr station towards what charger is it OK to use.
For the ones who know their stuff, can I use any USB charger or must I use only the Samsung charger that cane with the S3?
I remember reading the circuity that allows a proper charge is specific to Samsung chargers.
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
Yeah you can use any Micro USB cable or charger as long as it outputs no more than 1000mah.
I thought a higher output was "good" in that it reduces the charging time.
Could you please explain why one must take into account a limit?
Conversely, is a low output harmful: how about charging from a laptop USB port?
Also, I have a HTC One X. Can I use the Samsung charger with it: how do I find out the output limit for the One X?
Sent from my GT-I9300 using xda app-developers app
RF12 said:
I thought a higher output was "good" in that it reduces the charging time.
Could you please explain why one must take into account a limit?
Conversely, is a low output harmful: how about charging from a laptop USB port?
Also, I have a HTC One X. Can I use the Samsung charger with it: how do I find out the output limit for the One X?
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
A higher current can damage the battery and possibly the phone and some people say the phone at any current above 1500mah but still haven't seen any proof yet, and you can probably get away with 1300mah but the more you the the hotter the battery gets then slowly expands and might pop, and yes you can use the HTC charger no problem but check any charger you use for output current wrote on charger, and also yes you can charge from a laptop or any really slow charger you like.
Michael_P said:
A higher current can damage the battery and possibly the phone and some people say the phone at any current above 1500mah but still haven't seen any proof yet, and you can probably get away with 1300mah but the more you the the hotter the battery gets then slowly expands and might pop, and yes you can use the HTC charger no problem but check any charger you use for output current wrote on charger, and also yes you can charge from a laptop or any really slow charger you like.
Click to expand...
Click to collapse
Correct me if I am wrong, but I thought the Samsung phones block excessive current and can accept up to 1amp. Also when using any charger that doesn't have the middle cables short-circuited would produce 500milliamps regardless of charger's output(this can be turned off with custom kernel). That's why there is a list of car chargers on gsII or Note forums that have the pins shorted. That said, people had reported that using HP touchpad cuts down in charging time while increasing heat.
I am looking into this a little more and some useful info I found.
My GT-I9300 charger outputs 1000mA @ 5V. The phone charges up quickly. No problem there.
When using a USB port on my Macbook Air (2012 model), under About This Mac > More Info... > System Report... > Hardware > USB > bottom USB High-Speed Bus Hub listed: I see that 500mA are avail from the USB 2.0 port (conforming with USB 2.0 standard specs), but the GT-I9300 is only requesting/ drawing 96mA, whether I am using the original Samsung USB cable which came with the phone or my favorite short Jawbone ERA USB to microUSB shorter cable.
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It just takes much longer to charge.
My One X (S720E) draws the full 500mA avail from the port:
It should be noted that some Apple peripherals/ devices (iPhone, iPad etc.) can request and get an additional 500mA from the port on computers/ monitors that supports this.
Here is the Apple Support Article that covers this.
Pretty much everything uses Lithium-Ion these days, and it's perfectly safe to leave overnight, heck I even upped the AC charge voltage to a straight-up 1200 on AC power.
Charging at lower powers is equally harmless, but if you use the phone you may drain faster than it can charge.
All in all, thse rumors about decreasing battery life are getting sillier and sillier these days. Earlier batteries were a bit finicky, but they have improved A LOT, and honestly, a new samsung battery costs 25 dollars? If I'm still using this device in 3-4 years when the battery finally gives out I'll be very surprised.
Sent from my tricked out AOKP GT-I9300

Charges too slow

Does anyone else notice that the charging on the phone is slow? The charge even goes down as i'm surfing the web with it plugged in. I'm currently using the sony power brick that came with it. I'm experimenting with different ones at the moment. Right now I'm using the Vita charger. But compared to how my Note 3 charges, this one pales in comparison.
Please provide tips if you have any. I am currently in the mood to purchase a car charger as well.
poisonsushi319 said:
Does anyone else notice that the charging on the phone is slow? The charge even goes down as i'm surfing the web with it plugged in. I'm currently using the sony power brick that came with it. I'm experimenting with different ones at the moment. Right now I'm using the Vita charger. But compared to how my Note 3 charges, this one pales in comparison.
Please provide tips if you have any. I am currently in the mood to purchase a car charger as well.
Click to expand...
Click to collapse
What cable are you using to charge it? Try using the original cable. Android phones usually charge at a maximun of 1.5a so the one that comes with the phone it's Ok.
Enviado desde mi Xperia Z Ultra usando tapatalk 4
Mine's charging quite fast. It takes about 2 hours if i use the dock. (1100-1300 mA)
Jaime360 said:
What cable are you using to charge it? Try using the original cable. Android phones usually charge at a maximun of 1.5a so the one that comes with the phone it's Ok.
Enviado desde mi Xperia Z Ultra usando tapatalk 4
Click to expand...
Click to collapse
I was using some generic cable, not the suplied Sony one, cuz I thought they were all the same.
my phone came with European charger.
So I bought it this Micro USB Quick Charger from the US sony store. It's coming with some over voltage to charge quickly.
avetny said:
my phone came with European charger.
So I bought it this Micro USB Quick Charger from the US sony store. It's coming with some over voltage to charge quickly.
Click to expand...
Click to collapse
The specs on the sony store
Power
*AC Power : 1500mA
*Output Voltage : 120v
*Charging Connector : Micro USB
Output voltage at 120v? ..wow quick charge taken to a whole new level
shouldn't it look something like
*AC Power : 120v
*Output Voltage : 5v 1500mA
*Charging Connector : Micro USB
SÜPERUSER said:
The specs on the sony store
Power
*AC Power : 1500mA
*Output Voltage : 120v
*Charging Connector : Micro USB
Output voltage at 120v? ..wow quick charge taken to a whole new level
shouldn't it look something like
*AC Power : 120v
*Output Voltage : 5v 1500mA
*Charging Connector : Micro USB
Click to expand...
Click to collapse
what are you trying to say ?
regular Sony charger is ENERGY STAR (loss less than 30mW)
avetny said:
what are you trying to say ?
Click to expand...
Click to collapse
That the output voltage is specified as 120 volt at the SONY store homepage. It should be 5v
SÜPERUSER said:
That the output voltage is specified as 120 volt at the SONY store homepage. It should be 5v
Click to expand...
Click to collapse
So?
avetny said:
So?
Click to expand...
Click to collapse
just fun to see them write their specs wrong
SÜPERUSER said:
just fun to see them write their specs wrong
Click to expand...
Click to collapse
hmm I think everything is correct. Both phone chargers got AC Power : 1500mA. But quick charger got Output Voltage : 120v. And regular is 50v.
Yesterday I full charged my sony smart watch less than for 20min
avetny said:
hmm I think everything is correct. Both phone chargers got AC Power : 1500mA. But quick charger got Output Voltage : 120v. And regular is 50v.
Yesterday I full charged my sony smart watch less than for 20min
Click to expand...
Click to collapse
With that kind of voltage your ultra doesn't stay thin very long mate, definitely an error on the site.
You can't put more then 4.2V per cell. When it's more it will explode, in our phone there is one cell. My acer a700 have 3 cells, so that unit is charged with 12.6V.
You can charge faster by raising the current. Our cell is 3000mah, normally charged with 1500mah (0,5C). It should be fine to charge with 3000mah (1C). If the cell is decent quality it will take 6000mah (2C), but this reduces the charge cycles significantly. When the cell is inferior it will slowly starts to swell.
Everytime you double the amps the charge time halves (theoreticaly).
I would stick with 1500mah, done in 2 hours. There's always possibilty to charge.
This is what happens when you put more then 4.2V per cell into a lipo accu. In our phone there is a lion battery but this is almost the same. Lipo has a higher energy density.
poisonsushi319 said:
Does anyone else notice that the charging on the phone is slow? The charge even goes down as i'm surfing the web with it plugged in. I'm currently using the sony power brick that came with it. I'm experimenting with different ones at the moment. Right now I'm using the Vita charger. But compared to how my Note 3 charges, this one pales in comparison.
Please provide tips if you have any. I am currently in the mood to purchase a car charger as well.
Click to expand...
Click to collapse
I've been using different chargers and different cables, all at least able to charge at 1.5 amps. My results have been essentially the same: If I leave it alone, it charges rapidly, I'd say at about 2 hours and some change to full. However, if I start using it (especially on high brightness with lots going on) the charge slows down to a hault. This is the same on most Android devices. From what I've seen, the new snapdragon 800 chipsets are able to at least continue charging even through heavy use. Just not very quickly. I know the galaxy devices don't even charge if you use them heavily enough (with the exception of the Note 3 of course).
Sent from my C6802 using Tapatalk
poisonsushi319 said:
Does anyone else notice that the charging on the phone is slow? The charge even goes down as i'm surfing the web with it plugged in. I'm currently using the sony power brick that came with it. I'm experimenting with different ones at the moment. Right now I'm using the Vita charger. But compared to how my Note 3 charges, this one pales in comparison.
Please provide tips if you have any. I am currently in the mood to purchase a car charger as well.
Click to expand...
Click to collapse
I've experienced this with another device, it was caused by a faulty usb cable. One of the wires inside was almost cut, there was only connection with a couple of the twisted core wires. 80% was cut, big increase in resistance.
I did a massive study on lion batteries last year, and found that voltage does have an impact. (pulled apart my battery and used various voltage/hz/amp input...
The major issue with the input is the heat. If you quick charge it for an hour then you are fine. But using quick charge, and then using your device will cause massive heat because you'll be charing it for more than an hour, and using your device uses CPU... (goes without saying).
Expanding and contracting the battery is what causes decay. The material inside the battery that holds the positive ions will crack and cause less 'hold' for these ions. This will result in less ions being able to be stored.
This also may also cause hardware issues flexing the internals.
result:
5v is fine, it comes down to 1.5 - 1.8 amps input... anything over that and you'll really need to check on the heat of the battery. There is also a sensor that detects input and output of amps. This sensor can get fried easily, so be careful not to wreck it!
What ever you do... DON'T put your device in the fridge or freezer if its hot. That will cause massive temp change, and mess with more than just your battery.
poisonsushi319 said:
I was using some generic cable, not the suplied Sony one, cuz I thought they were all the same.
Click to expand...
Click to collapse
They are not the same. Charging speed changes a lot depending on what cable you use. Did I solve your problem?
Enviado desde mi Xperia Z Ultra usando tapatalk 4
Jaime360 said:
They are not the same. Charging speed changes a lot depending on what cable you use. Did I solve your problem?
Enviado desde mi Xperia Z Ultra usando tapatalk 4
Click to expand...
Click to collapse
i have not noticed any difference. I think I just have to leave it along. Also isn't the quick charger from sony store the same one we get in the box? I'm thinking about getting the samsung charger from the Note 3, because the Note 3 charges hella fast and I can feel the charger box getting warm too.
poisonsushi319 said:
i have not noticed any difference. I think I just have to leave it along. Also isn't the quick charger from sony store the same one we get in the box? I'm thinking about getting the samsung charger from the Note 3, because the Note 3 charges hella fast and I can feel the charger box getting warm too.
Click to expand...
Click to collapse
It's very normal for a charger to get warm. You should watch the battery, that should not get warm.
poisonsushi319 said:
i have not noticed any difference. I think I just have to leave it along. Also isn't the quick charger from sony store the same one we get in the box? I'm thinking about getting the samsung charger from the Note 3, because the Note 3 charges hella fast and I can feel the charger box getting warm too.
Click to expand...
Click to collapse
I was thinking about plugging the Official Sony usb cord into my old Note 2 adapter because it's 2amps! the Note 2 cord also appears to be a higher gauge! I don't want to fry the battery on this thing, I wonder would .5 additional amps be ok?
samsmalls said:
I was thinking about plugging the Official Sony usb cord into my old Note 2 adapter because it's 2amps! the Note 2 cord also appears to be a higher gauge! I don't want to fry the battery on this thing, I wonder would .5 additional amps be ok?
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Stock charger isn't quick charge 3.0??

Charger that comes with this phone is just labeled fast charge... Phone seems to charge pretty slow also from what I see.
i just installed some dual 2.4A usb outlets in my house they charge very fast from 8% to 100% in about an hour, considering the Amperage on the stock charger is 1.8A it doesn't seem like it would be enough to use the phone while charging.
I havent used the stock charger yet but mine reads it puts out [email protected] 1.8amps or [email protected] 1.8amps. I am waiting for my battery to get really low so i can see how fast it will charge.
Sent from my LG-H830 using XDA-Developers mobile app
When the OEM charger is plugged in, swipe down and you can see it says it's being fast charged.
When plugged in, my screen does say Quick Charge, and my phone charged rather fast, but still getting used to it. Even when I had my phone plugged into a normal new USB C plugged directly into my usb outlet, it seemed to charge much faster than I was expecting.
Yes I understand it says fast charging, so does the quick charge 2.0 with this phone, but is it actually charging at QC 3.0 speeds??
It seems silly they would make a Quick Charge 3.0 phone and not supply the relevant charger.
I ordered an aftermarket QC 3.0 charger, I guess I can do some comparisons when it shows up.
Anker makes a very nice Quick Charge 3.0 charger.
Sent from my SM-G935T using Tapatalk
I got this one, it's half the price. Will be here today.
https://www.amazon.com/gp/aw/d/B015ZJKWFS/ref=ya_st_dp_summary
jrwingate6 said:
Anker makes a very nice Quick Charge 3.0 charger.
Sent from my SM-G935T using Tapatalk
Click to expand...
Click to collapse
They didn't give a qc2.0 charger with g4
turbodroid said:
I got this one, it's half the price. Will be here today.
https://www.amazon.com/gp/aw/d/B015ZJKWFS/ref=ya_st_dp_summary
Click to expand...
Click to collapse
I performed a test with the aftermarket QC 3.0 charger linked above and the one supplied with the phone. I drained to 90% and as soon as it hit 90 I plugged it in and started the timer. The results are nearly identical in how fast 100% charge was achieved.
The first screenshot of total time was the aftermarket charger and the 2nd is the factory charger. I would venture to guess based on these results, the factory charger is QC 3.0, but you can draw your own conclusions.
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Well if the stock charger says 9V @ 1.8A and 5V @ 1.8A, then it's not true QC 3.0 as that uses voltages from 5V - 20V.
turbodroid said:
I got this one, it's half the price. Will be here today.
https://www.amazon.com/gp/aw/d/B015ZJKWFS/ref=ya_st_dp_summary
Click to expand...
Click to collapse
There only will be a minimal effect because the original charger has a 9V and 1.8A = 16W rating.
All Aftermarket charger with QC 3.0 had a maximum reading of 18W, 9V at 2A or 12v at 1.5A.
And you can't do a comparison at the last 10%percent of the charging process, because of of the method that's just to charge lithium battery's.
Lithium-ion battery see charge and discharge
Around the last 10% will be constant voltage where the charger has minimal influence. Because the internal resistance of the battery cause the amount of power that goes in the battery.
Ca you do another test with larger charge?
Before any of you rush out and buy a cheap charger to save a few bucks I'd think twice about it. I have been screwed by cheap chargers on more than one occasion which is why I refuse to buy them anymore.
I've had them stop working after a couple weeks and many of them made a very annoying noise. Some made a high pitch squealing noise while just sitting there doing nothing and others made the noise while charging.
Slow and Fast
I noticed it charged VERY slow at first while i was using the phone at the same time. I notoced the charger wasnt even slighty warm to the touch after 30+ minutes. That made me think and noticed if I left the phone at rest without turning it on it charges much quicker and the charger got warm quick. And the charger actually cools down if you start using it half way through a charge.
*I took a screen shot of the battery usage graph, but I'm new so I can't post photos yet so you'll have to trust me lol
My rough estimates are that if you are using the phone while charging it will take just over 2 hours, but if you don't touch it then it charges in under 50 minutes.
Mind you phones battery temperature also effects the charge rate, is if you have it on top of a pillow it might not charge as quick.
You don't wanna use the phone while it quick charges. Turn screen off for an hour and it will be done
Sent from my VS987 using XDA-Developers mobile app
Dude how are you basing charging speeds from 90% to 100%.../
The charger that came with the G5 is the same charger that came with my v10, it is only Quick Charge 2.0, I have compared the model #'s and they are exactly the same. I have gone on amazon and ordered a Anker Quick Charge 3.0 plug and a couple of their USB-C cables.
---------- Post added at 12:20 PM ---------- Previous post was at 12:11 PM ----------
I just contacted LG through their website via E-Mail regarding the Quick Charge 3.0 charger, I will follow-up once I receive an email back from them. The website advised that I should receive an email within 24 hours.
Noodels1987 said:
There only will be a minimal effect because the original charger has a 9V and 1.8A = 16W rating.
All Aftermarket charger with QC 3.0 had a maximum reading of 18W, 9V at 2A or 12v at 1.5A.
And you can't do a comparison at the last 10%percent of the charging process, because of of the method that's just to charge lithium battery's.
Lithium-ion battery see charge and discharge
Around the last 10% will be constant voltage where the charger has minimal influence. Because the internal resistance of the battery cause the amount of power that goes in the battery.
Ca you do another test with larger charge?
Click to expand...
Click to collapse
I have drained to 50% and am performing the same test with the factory charger now. Will update results later this evening so I can repeat with the aftermarket charger.
evobyte said:
Dude how are you basing charging speeds from 90% to 100%.../
Click to expand...
Click to collapse
It's a wonder why anyone tries to share information on this site with comments like this. Since you probably only skimmed over what I posted, I said feel free to draw your own conclusions and that it was a 'quick test'.
When the phone gets to 80 % the other 20% go pretty slow, might even be similar to the QC 2.0... But 50% to 100% would be a good test, and we can see if there's a difference

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