I have a 10,000 mAh 22.5W magnetic powerbank and I noticed that the 10,000 mAh can only do a 1 full wireless charge of S23U which has a 5,000 mAh capacity. My powerbank at full charge was only able to charge my S23U from 10% until 96%. Considering that I've not used the phone extensively while being wirelessly charged and the 10,000 mAh is not true rated.
Is this really the case for wireless charging. The capacity consumed is doubled compared to Wired charging?
The power lose can be high. Wireless charging isn't ideal for a number of reasons. Excess heat production being the core issue.
The bank uses a switching voltage converter for stepping it up and/or the wireless charger does I would think. That's another chunk out of the efficiency.
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Does anyone know of a solar charger that will actually chearge the prime ? i have a freeloader solar charger with an internal 1200mAh battery that can ouput 5v 500mA and a Hymini Wind charger that has a 1200mAh internal storage that can output 5v 850mA
Both of these can alledgedly charge an Ipad but neither of mine seem to have the grunt to kick the charging circuit into life on either the tablet or the dock.
I just I want something that i can use to keep the unit topped off whilst i'm travelling around Greece
Before anyone says it, i understand the limitations of solar charge. from using it for my phone know they take many hours to charge their internal batteries and the loss associated with then dumping that charge into your device.
Not at 5v it won't
You'll need 15v to charge at normal rate, or 12v at a slower rate. 5v it will only charge completely off, and then only very slowly.
i take it that's just the tablet and not the dock ?
Harani said:
i take it that's just the tablet and not the dock ?
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Either. The maximum input voltage for either is 15v.
ok cheers,
I thought it wasn't charging at all but i've read elsewhere that the charging light will not come on and that it will take up to 16 hours to fully charge on 5v
if that's true then if the solar charger is 1200mAh and is pushing out 500mA then it's only going to be able to charge the pad for just over 2 of the required 16 hours (i think ?) before it's depleted
I'll run some experiments and see exactly how much charge it will put into it overnight but it doesn't seem like it will be a practical thing to use.
Hey guys,,,,
Wanna ask something here...
I have an idea to buy a power bank/portable charger, instead of buy a spare battery.
But there are alot of choice, start from 2000mah-10000mah capacities, offerring 2-6 USB port.
Each product offered different USB port voltage and ampere.
For the example, each USB port supplying 5.3V / 5.0V and 1A / 2A / 0.8A....
Do you know which one match/compatible with our phone?
From what i remember from my physics class the should all be compatible. Cellphone battery is 4.3V, so it needs a power higher than that to be re-charged, a pc usb port usuall supplies power at 5V, whilst the A is the amount of energy let through, so the difference in A value impacts the speed at which the portable device recharges the phone battery. The same voltage carrying 1Ah reachrges the batter in half the time needed by one carrying it a 0.5A. Furthermore cell batteries have an internal chip which regulates the tension transmitted. The mAh is the total capacity of the recharging device (or toal amount of A it can store and supply over one h unit of time)
I think the the amperage of charger shouldn't be more 1.0 A. More amperage will charge the battery quickly, but will short his life.
so, I should go for 5V and something under 1.0A?
a product that nearly match those config was sanyo eneloop.
provided 2 USB port 5V and 0.5A or 2x for 1.0A.
physcodelic said:
so, I should go for 5V and something under 1.0A?
a product that nearly match those config was sanyo eneloop.
provided 2 USB port 5V and 0.5A or 2x for 1.0A.
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At spec of Sanyo Eneloop i see when you use only one of USB port and charge one device you will have charging output of 5V and 1A. When you use both ports you will have charging output of 5V and 0.5A (500mA).
tanec said:
At spec of Sanyo Eneloop i see when you use only one of USB port and charge one device you will have charging output of 5V and 1A. When you use both ports you will have charging output of 5V and 0.5A (500mA).
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I see....
Thanks for the explanation...
Maybe I should go for Sanyo, cause the other products was made by some unknown/unfamiliar brand from chinese.
Better to choose a wellknown brand right?
That's because as i explained before Amperes is the amount of energy that passes through a conductor, if a device has max output of 1A if you use two ports it will obviously split down the tension output. Amperes have nothing to do with battery life, it's not gonna do anything if you charge them faster, what matters is tension (V) which is maintained constant by the chip within the battery itself which gives the battery the 4.25V constant it needs controlled also by the cellphones internal regulatory hw. Poli-ion batteries use an impulse charge system, it's not continuative, that's why constant regular tension is important, aamof recharging the cellphone from car charger does affect negatively battery life. Poli-ion batteries if left unused have a very slow discharge rate, 1% a month, nonetheless life is shortened by about 25% after 100 full cycles and another 25% after 3-4 years of life, and they have no memory effect, so it is always best not to let the battery discharge completely ...Go for better known brand, not for the quality of the product per say but for more guarantees on support and warranty claims
Rudjgaard said:
That's because as i explained before Amperes is the amount of energy that passes through a conductor, if a device has max output of 1A if you use two ports it will obviously split down the tension output. Amperes have nothing to do with battery life, it's not gonna do anything if you charge them faster, what matters is tension (V) which is maintained constant by the chip within the battery itself which gives the battery the 4.25V constant it needs controlled also by the cellphones internal regulatory hw. Poli-ion batteries use an impulse charge system, it's not continuative, that's why constant regular tension is important, aamof recharging the cellphone from car charger does affect negatively battery life. Poli-ion batteries if left unused have a very slow discharge rate, 1% a month, nonetheless life is shortened by about 25% after 100 full cycles and another 25% after 3-4 years of life, and they have no memory effect, so it is always best not to let the battery discharge completely ...Go for better known brand, not for the quality of the product per say but for more guarantees on support and warranty claims
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I'am sorry if I can't understand your explanation fully...
So you mean higher Ampere output than original charger was safe, Am I right?
I bought already sanyo power bank, seems like a nice quality.
Charging time almost same like it was charged on PC USB port.
Thank for your complete explanation
tho I cant understand that completely (stupid me)
physcodelic said:
I see....
Thanks for the explanation...
Maybe I should go for Sanyo, cause the other products was made by some unknown/unfamiliar brand from chinese.
Better to choose a wellknown brand right?
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That is the best way. I was trying one solar charger, with included LiPo battery with 2600 mAh. The charger was with dimensions of an iphone and can charge included battery from sun and from regular USB charger. His price was something around 6-7 pounds. This kind - Portable-iphone-2600MAh-USB-Solar-Panel-Battery-Charger-for-Mobile-Phone-MP3-MP4 (search in ebay, because i'm a new user and can post links ). Included battery can keep charge for 1 full and one 70% charge of mi Xperia Mini Pro with standart 1160mAh battery. Hope this can help you. The advantages of sanyo charger is that, you can use regular AA battery that you can buy it from every where.
P.S. Sorry for my english. Hope you can understand me
your english was understandable bro
ahhh...a solar charger...will keep this in my mind.
traveling too much with smartphone will be easy with a solar charger
Hey guys.
I'm looking forward into buying a powerbank and I was wondering about the output power of it. I have an small tube like 2300 batterypack with 1Amp output. And when it comes to standy charging, you know when the phone is left to charge it's no problem.
The thing I'm worried about is charging while doing something like photos, working on photos, browsing the net, some socoal media maybe a game.
And my question is will 1Amp be enough for the G3 or I have to look for a 2Amp one?
If somebody had both outputs or can test it out It would be great because I wnated to buy it today and in Poland the differance between a 1Amp and 2Amp powerbank is like 2x.
A 2A powerbank charges my G3 quicker than an older 1A that I had. I got a 5v 2A charger with two USB ports and 6000 mAh capacity, and i haven't regretted it since! Although, Pokemon Go drains both my battery and the powerbank daily guess I'll have to find a powerbank with larger capacity
maximal input to charge a g3 is 5V DC 2A
1A is to low to play and charge at the same time. (Pokemon go is the best representative for the deplete akku while charging with a 1A powerbank ^^)
for a good quality for a powerbank is a anker powerbank but they are expensive but the best and qualitatives one
i have a 26800maH powerbank from anker with powercore+ and quickcharge 2.0 in continuous operation the bank can be used 28h with all 3 slots used after that time the bank is empty and need 8h to recharge
13 times can i charge my g3 with it from 0 to 100%
It's a sad story that G3 do not support QC2.0. The max charging rate is 10W. IF you are using a 1A output that would be 5W. thats almost half the speed. My suggestion is getting enough substitute battery and buy a charging dock or something. By doing so you could save the time sitting next to your plug n get rid of the experience of a burning iron pan.
Hey, is it safe to use original 45W Samsung charger daily? Got it for nice price ($25) from friend's shop.
I read somewhere it's not recommend to use 45W. Also I read S20+ supports 25W only.
Thank you for answers.
It is safe to use the charger but I am not sure if it will be able to charge it at 25W also.
So if I will use 45W, charging will be the same as with original charger?
Tried it, remaining time to fully charged is showing the same with both chargers.
RenikSK said:
So if I will use 45W, charging will be the same as with original charger?
Tried it, remaining time to fully charged is showing the same with both chargers.
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I have the 45w charger. Charging speed depends on the phone temperature. The phone slows down the charging when phone temperature gets high. It's marginally faster than the one that came with the phone. But it's super fast charging for the first 30 minutes or so compared to our of the box.
So i use the 45w charger at office when I need to charge the phone fast and seldom fully charge it as I would unplug it and go somewhere else.
At home I just plug in the charger that came with the phone for overnight charging. Perhaps not the best to leave it charging overnight but I need a full battery next day.
Even if the charger provides 45w, the phone will only pull what is needed from the charger itself. So if the phone limits itself to 25w, then thats all it will use from the charge available.
Equally, if the charge provided is lower than the maximum the phone can use (i.e. 25w phone but 15w charger), then it will use the maximum from the charge available.
Chargers these days offer a multitude of different voltages and amp ratings, but they are smart and will only send what is requested by the device that is plugged in so there's no chance of accidental over-voltage.
I too have the 45W samsung travel charger and did a comparison on power draw compared to the 25W charger that is included with the phone. I used both the USB C cable that came with the phone (Black) and the thicker cable that came with the 45W charger (White), while measuring the power draw using a power consumption meter that was plugged into the wall between the charger and the outlet. My phone was at 40% charge when I tested. The results are shocking.
Included 25W charger
Phone's Black cable - 27.9 W
Charger's White cable - 27.2 W
Samsung 45W travel charger
Phone's Black cable - 29.7 W
Charger's White cable - 31.3 W
The similar power draw explains the charging speed difference of 10 minutes which many reviewers on youtube have observed. Taking another step, I have read that the S20 Ultra requires the charger to support PPS to achieve (10V, 4.5A) in order to charge at 45W. So why does the 45W travel charger only support (15V, 3A), (20V, 2.25A), (3.3-11V, 4.05A), (3.3-16V, 2.8A) and (3.3-21V, 2.1A)? Even the best case scenario would be to use the (3.3-11V, 4.05A) PPS profile and set it to (10V, 4.05A) to give only 40.5W. I smell a rat.
Interesting. I have also measured power draw but my results are bit diferent.
45W charger was getting up to 41W for 4 mins.
On overall charging speed 0-100% the diference is 10mins, but after charging 20mins I'm getting 54% on 45W and 37% on stock.
17% in 20mins it's a lot of difference.
45W is slowing down up to 1A after that to cool down the phone. 25w have similar behaviour.
Baseus 65W PPS chargers triggers SFC 2.0 but it takes more than 2h to charge fully. Amperage is oscilating as hell.
my Huawei 65w laptop Charger charges my S20U much quicker than the 25w charger i find...
krogoth said:
Interesting. I have also measured power draw but my results are bit diferent.
45W charger was getting up to 41W for 4 mins.
On overall charging speed 0-100% the diference is 10mins, but after charging 20mins I'm getting 54% on 45W and 37% on stock.
17% in 20mins it's a lot of difference.
45W is slowing down up to 1A after that to cool down the phone. 25w have similar behaviour.
Baseus 65W PPS chargers triggers SFC 2.0 but it takes more than 2h to charge fully. Amperage is oscilating as hell.
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I have been continuously testing and found that if your phone has less than 30% battery and the battery temperature is under 33 ºC, it will charge at 40W. After that, it drops to 30W for the remainder of the charge and then drop again to 20W when the battery is above 80%.
Next step is to find a good battery data logging app which logs battery percentage, battery temperature, charging current and time. Surprising to find that not many apps can do this. Even the Battery Charging Monitor app doesn't log all that data.
Who's been able to wirelessly charge their phone above 3 or 5 watts?
If so, Motorola's charger or another brand?
I have 3 charging pads and a stand (various brands) and built-in car charger, and none charge more than 350 or 450mA according to Ampere app. Tested at 40-70% battery.
Best charge was from 50% to 57% in 1.5 hours.
Note: Wireless chargers charge Pixels and a Samsung at higher rate as expected.