Anybody have tips on the subject? I was reading around and read multiple articles on this. Many said do not keep it on the charger after it has reached 100%. This poses a problem, because the G2 will charge from 0-100 in nearly 1 hour and 30 minutes, and i like to keep it on the charger while i sleep. Does the G2 have software to prevent this? It does say to please remove charger to conserve energy when its full.
Any replies are much appreciated
Sent from my LG-D800 using xda app-developers app
Well i read also that you shouldnt charge it to 100% frequently
2. You shouldnt let the battery charge drop under 20 frequently Before recharging
3. You shouldnt let the battery run out of charge frequently because our battery will get damaged if u do that quite often
so beware of this point
And they said it's not best to let the phone charge over night frequently
Sent from my LG-D802 using XDA Premium 4 mobile app
I am no expert in this area - but this is what i do and i seem to get great battery life. i just looked, my device has been on battery for 3.5 hours and i'm still at 100% with usage in the following areas...
Google serviced - 29%
Android system - 22%
Screen - 17%
this is with wifi on, approx 5 min worth of voice calling, and several text messages, couple min of facebook and G+. i am not rooted, running stock launcher with most recent tmobile software update (unlocked and using it on Bell).
I hard reset my device once a month (minimum) - not sure if this does anything, but i am a little OCD when it come to my devices.
Before hard reset...
1. charge device to 100%
2. keep device plugged in for ~15 min after fully charged. The unplug.
3. hard reset device
4. once booted, plug device in a proceed to setup and install programs
5. unplug device once complete
During the day...
I always keep it charged up...i dont usually let it get below 75% (if possible). I'm always around a charger/plug at my work.
During the night...
1. charge device to 100% before going to bed
2. before you go to sleep, unplug device and put it in airplane mode
3. when you get up - turn off airplane mode and plug in for ~15 min or so
Again - im no expert, but this is working for me so imma stick to it!
It is not recommended to keep your phone plugged in after it has reached 100%. Only do it when you need an extra battery boost for the day (and that's hopefully not every day).
The general rule is to charge it from 40%-80% and that partial charges are better than full charges.
I really wish people would stop with the "don't keep it on the charger" nonsense which then makes people think they need to micromanage the charge cycle.
Charge early and often. Don't intentionally drain it down to some low percent, just charge nightly and you should be fine. If you're heavily using the phone, try to avoid dropping below 30%. Heavier discharges cause faster ageing.
And avoid keeping it in a hot environment, north of 30C. If it's your car GPS, keep a vent blowing cool air on it, especially in the summer. During the winter make sure a vent isn't blowing hot air on it.
Heat is probably the primary variable in battery life, followed by heavy discharge cycles.
Do whatever you want regarding keeping it charging after it's full. But disagreeing doesn't make your statement correct. I do agree with your statements about heat, however.
Sent from my LG-D802 using XDA Premium 4 mobile app
just charge the thing and use it, I have a Samsung Galaxy S2 2-3 years ago the battery still going strong, most of you dont even own a phone past a year.
I usually make my phone go as long as it can. My previous phone, an iPhone 4, lasted almost three years.
Sent from my LG-D802 using XDA Premium 4 mobile app
vPro97 said:
I usually make my phone go as long as it can. My previous phone, an iPhone 4, lasted almost three years.
Sent from my LG-D802 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
the battery will last 3 years, its lithium battery, some people still own old phones like Iphone 4 and the battery still good.
battery is battery, just dont let it over heat and it'll be fine. stop trying to squeeze every second out of the battery and enjoy the phone...
I always thought it stopped charging at 100 but when it looses a little bit on the charger it charges it back. I thought that's why it said to conserve energy....as in energy from your house.
Sent from my VS980 4G using xda app-developers app
It's an established fact that keeping the phone at charged state between 40%-80% is most optimal (causes least stress) for the battery.
But of course, don't let that get in the way of your daily usage routine and cause you incovenience.
Battery is, afterall, consumable and is meant to be replaced.
I'm afraid there are lots of ill-informed people who insist that their batteries do not deteriorate. Congrats to them, they just find the solution that solves the global energy crisis.
How Often Should I Charge My Gadget's Battery to Prolong Its Lifespan?
http://lifehacker.com/5875162/how-often-should-i-charge-my-gadgets-battery-to-prolong-its-lifespan
If you like to get more technical, there's good information from the Pros.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Here's my notes from a few years ago.
--------------------------------------------------------
Li-Ion Battery
(From Wiki) During discharge, lithium ions Li+ carry the current from the negative to the positive electrode, through the non-aqueous electrolyte
and separator diaphragm.[7]
During charging, an external electrical power source (the charging circuit) applies a higher voltage (but of the same polarity) than that
produced by the battery, forcing the current to pass in the reverse direction. The lithium ions then migrate from the positive to the
negative electrode, where they become embedded in the porous electrode material in a process known as intercalation.
Prolonging battery pack life (from wiki)
+ Avoid deep discharge and instead charge more often between uses, the smaller the depth of discharge, the longer the battery will last.
+ Avoid storing the battery in full discharged state.
+ Li-ion batteries should be kept cool; they may be stored in a refrigerator.
+ The rate of degradation of Li-ion batteries is strongly temperature-dependent; they degrade much faster if stored or used at higher temperatures.
+ Li-ion has no memory effect.
+ Li-ion does not need to be fully charged.
+ In fact, it is better NOT to fully charge, because high voltages stresses the battery.
+ Li-ion cannot absorb overcharge, and when fully charged the charge current must be cut off =>
+ To minimize stress, keep the lithium-ion battery at the 4.20V/cell peak voltage as short a time as possible. (meaning do NOT overcharge)
+ Some portable devices sit in a charge cradle in the on position. The current drawn through the device is called the parasitic load and
can distort the charge cycle. Battery manufacturers advise against parasitic load because it induces mini-cycles.
What does that mean to us? Don't use when it's plugged in?
+ A portable device must be turned off during charge. This allows the battery to reach the set threshold voltage unhindered, and enables terminating charge on low current.
+ Li-ion should never be discharged too low.
+ Do not recharge lithium-ion if a cell has stayed at or below 1.5V for more than a week.
Simple Guidelines for Charging Lithium-based Batteries (from batteryuniversity.com)
+ A portable device should be turned off while charging. This allows the battery to reach
the threshold voltage unhindered and reflects the correct saturation current responsible to
terminate the charge. A parasitic load confuses the charger.
+ Charge at a moderate temperature. Do not charge below freezing.
+ Lithium-ion does not need to be fully charged; a partial charge is better.
+ Chargers use different methods for “ready” indication. The light signal may not always indicate a full charge.
+ Discontinue using charger and/or battery if the battery gets excessively warm.
+ Before prolonged storage, apply some charge to bring the pack to about half charge.
+ Over-discharged batteries can be “boosted” to life again. Discard pack if the voltage does not rise to a normal level within a minute while on boost.
Conclusion:
+ A portable device should be turned off while charging.
+ Avoid deep discharge and instead charge more often between uses.
+ Lithium-ion does not need to be fully charged; a partial charge is better.
G1_enthusiast said:
just charge the thing and use it, I have a Samsung Galaxy S2 2-3 years ago the battery still going strong, most of you dont even own a phone past a year.
Click to expand...
Click to collapse
I've had (and still have) the Samsung Galaxy S2 for over 2 years, and I had to replace the battery a little over half a year ago due to the dreaded battery bulge (I could spin my battery on the table). So yes, batteries do go bad and they can go bad in a short period of time. And yes, if this happens to the G2 with its non-removeable battery, that really sucks.
beezar said:
I've had (and still have) the Samsung Galaxy S2 for over 2 years, and I had to replace the battery a little over half a year ago due to the dreaded battery bulge (I could spin my battery on the table). So yes, batteries do go bad and they can go bad in a short period of time. And yes, if this happens to the G2 with its non-removeable battery, that really sucks.
Click to expand...
Click to collapse
did you leave it in 150 degrees heat?
I almost always turn off my phone if I know its gonna be 100+ outside and 150 in my car. its commonsense.
votinh said:
Here's my notes from a few years ago.
--------------------------------------------------------
Li-Ion Battery
(From Wiki) During discharge, lithium ions Li+ carry the current from the negative to the positive electrode, through the non-aqueous electrolyte
and separator diaphragm.[7]
During charging, an external electrical power source (the charging circuit) applies a higher voltage (but of the same polarity) than that
produced by the battery, forcing the current to pass in the reverse direction. The lithium ions then migrate from the positive to the
negative electrode, where they become embedded in the porous electrode material in a process known as intercalation.
Prolonging battery pack life (from wiki)
+ Avoid deep discharge and instead charge more often between uses, the smaller the depth of discharge, the longer the battery will last.
+ Avoid storing the battery in full discharged state.
+ Li-ion batteries should be kept cool; they may be stored in a refrigerator.
+ The rate of degradation of Li-ion batteries is strongly temperature-dependent; they degrade much faster if stored or used at higher temperatures.
+ Li-ion has no memory effect.
+ Li-ion does not need to be fully charged.
+ In fact, it is better NOT to fully charge, because high voltages stresses the battery.
+ Li-ion cannot absorb overcharge, and when fully charged the charge current must be cut off =>
+ To minimize stress, keep the lithium-ion battery at the 4.20V/cell peak voltage as short a time as possible. (meaning do NOT overcharge)
+ Some portable devices sit in a charge cradle in the on position. The current drawn through the device is called the parasitic load and
can distort the charge cycle. Battery manufacturers advise against parasitic load because it induces mini-cycles.
What does that mean to us? Don't use when it's plugged in?
+ A portable device must be turned off during charge. This allows the battery to reach the set threshold voltage unhindered, and enables terminating charge on low current.
+ Li-ion should never be discharged too low.
+ Do not recharge lithium-ion if a cell has stayed at or below 1.5V for more than a week.
Simple Guidelines for Charging Lithium-based Batteries (from batteryuniversity.com)
+ A portable device should be turned off while charging. This allows the battery to reach
the threshold voltage unhindered and reflects the correct saturation current responsible to
terminate the charge. A parasitic load confuses the charger.
+ Charge at a moderate temperature. Do not charge below freezing.
+ Lithium-ion does not need to be fully charged; a partial charge is better.
+ Chargers use different methods for “ready” indication. The light signal may not always indicate a full charge.
+ Discontinue using charger and/or battery if the battery gets excessively warm.
+ Before prolonged storage, apply some charge to bring the pack to about half charge.
+ Over-discharged batteries can be “boosted” to life again. Discard pack if the voltage does not rise to a normal level within a minute while on boost.
Conclusion:
+ A portable device should be turned off while charging.
+ Avoid deep discharge and instead charge more often between uses.
+ Lithium-ion does not need to be fully charged; a partial charge is better.
Click to expand...
Click to collapse
Just because it is on a wiki does not mean it is correct. Anyone that purports that current flows from negative to positive, is clearly not an engineer, and thus not a subject matter expert (I stopped reading right there so excuse if I'm repeating).
Heat, be it from charging, discharging, or environment, and over discharge, or improper charging are the primary reasons batteries lose capacity. Lithium polymer batteries will lose some of its initial capacity after a thousand or so charge-discharge cycles, but this is very much dependent on the charging rate used to charge the battery. If the charge rate is 0.5C or less, there is much less capacity loss (if any) over time. Charge rates of 1C and over, generate significant heat that deteriorates the cell chemistry over time, reducing capacity.
If I can ever kill my battery enough, I'll throw this phone on my charge profiler at work to see what charge rate it uses.
BTW, my two year old GSII is on its original battery and lasts all day with 40% left at the end of the day. I charge over night with no ill effects, but I never expose the phone to excessive heat.
T
Sent from my VS980 4G using Tapatalk 2
I slow charge my phone using a 500mA iPhone Cube brick and microUSB cable for overnight charging. Charging this way takes hours. I use quick charge in my car and office if needed.
A good charger should trickle charge once its 100% just to keep it up.
Sent from my VS980 4G using XDA Premium 4 mobile app
So our phones do not come with a good charger?
Sent from my VS980 4G using xda app-developers app
tedkunich said:
Just because it is on a wiki does not mean it is correct. Anyone that purports that current flows from negative to positive, is clearly not an engineer, and thus not a subject matter expert (I stopped reading right there so excuse if I'm repeating).
Heat, be it from charging, discharging, or environment, and over discharge, or improper charging are the primary reasons batteries lose capacity. Lithium polymer batteries will lose some of its initial capacity after a thousand or so charge-discharge cycles, but this is very much dependent on the charging rate used to charge the battery. If the charge rate is 0.5C or less, there is much less capacity loss (if any) over time. Charge rates of 1C and over, generate significant heat that deteriorates the cell chemistry over time, reducing capacity.
If I can ever kill my battery enough, I'll throw this phone on my charge profiler at work to see what charge rate it uses.
BTW, my two year old GSII is on its original battery and lasts all day with 40% left at the end of the day. I charge over night with no ill effects, but I never expose the phone to excessive heat.
T
Sent from my VS980 4G using Tapatalk 2
Click to expand...
Click to collapse
You quoted my post to say that info on Wiki and Battery University is wrong? and giving an example of charging your SGS2 overnite with no ill effects to prove them wrong?
votinh said:
You quoted my post to say that info on Wiki and Battery University is wrong? and giving an example of charging your SGS2 overnite with no ill effects to prove them wrong?
Click to expand...
Click to collapse
Like I said, I stopped reading the moment they stated the incorrect definition of current flow - if they got that basic tenant wrong, wasn't going to read further. Was not my intent to offend by quoting your post. My comment on the charging overnight was a general response to a prior post that leaving the device on the charger overnight was detrimental to the battery - probably should have quoted that post. In general, leaving an advanced device like a cellphone plugged into a charger will not overcharge a battery - a cheap toy will probably not have a proper charger and CAN damage a cell if left on for prolonged periods.
BTW, I'm an EE and design in Li-po batteries and chargers in my designs and I'm always dealing with non-technical marketing and sales folks to explain these types of details, so I tend to jump in when I hear wrong information (not saying the links contained false information) being discussed.
T
Sent from my Nexus 7 using Tapatalk 2
votinh said:
Here's my notes from a few years ago.
--------------------------------------------------------
Li-Ion Battery
(From Wiki) During discharge, lithium ions Li+ carry the current from the negative to the positive electrode, through the non-aqueous electrolyte
and separator diaphragm.[7]
During charging, an external electrical power source (the charging circuit) applies a higher voltage (but of the same polarity) than that
produced by the battery, forcing the current to pass in the reverse direction. The lithium ions then migrate from the positive to the
negative electrode, where they become embedded in the porous electrode material in a process known as intercalation.
Prolonging battery pack life (from wiki)
+ Avoid deep discharge and instead charge more often between uses, the smaller the depth of discharge, the longer the battery will last.
+ Avoid storing the battery in full discharged state.
+ Li-ion batteries should be kept cool; they may be stored in a refrigerator.
+ The rate of degradation of Li-ion batteries is strongly temperature-dependent; they degrade much faster if stored or used at higher temperatures.
+ Li-ion has no memory effect.
+ Li-ion does not need to be fully charged.
+ In fact, it is better NOT to fully charge, because high voltages stresses the battery.
+ Li-ion cannot absorb overcharge, and when fully charged the charge current must be cut off =>
+ To minimize stress, keep the lithium-ion battery at the 4.20V/cell peak voltage as short a time as possible. (meaning do NOT overcharge)
+ Some portable devices sit in a charge cradle in the on position. The current drawn through the device is called the parasitic load and
can distort the charge cycle. Battery manufacturers advise against parasitic load because it induces mini-cycles.
What does that mean to us? Don't use when it's plugged in?
+ A portable device must be turned off during charge. This allows the battery to reach the set threshold voltage unhindered, and enables terminating charge on low current.
+ Li-ion should never be discharged too low.
+ Do not recharge lithium-ion if a cell has stayed at or below 1.5V for more than a week.
Simple Guidelines for Charging Lithium-based Batteries (from batteryuniversity.com)
+ A portable device should be turned off while charging. This allows the battery to reach
the threshold voltage unhindered and reflects the correct saturation current responsible to
terminate the charge. A parasitic load confuses the charger.
+ Charge at a moderate temperature. Do not charge below freezing.
+ Lithium-ion does not need to be fully charged; a partial charge is better.
+ Chargers use different methods for “ready” indication. The light signal may not always indicate a full charge.
+ Discontinue using charger and/or battery if the battery gets excessively warm.
+ Before prolonged storage, apply some charge to bring the pack to about half charge.
+ Over-discharged batteries can be “boosted” to life again. Discard pack if the voltage does not rise to a normal level within a minute while on boost.
Conclusion:
+ A portable device should be turned off while charging.
+ Avoid deep discharge and instead charge more often between uses.
+ Lithium-ion does not need to be fully charged; a partial charge is better.
Click to expand...
Click to collapse
Does this wall of text pertain to lithium polymer as well? Consdering that is the type of battery in the phone not ion
Sent from my LG-VS980
Related
So I have had mine sitting here all packaged up since tuesday.
And im looking to now actually open it and play with it,
Do you recommend I charge to full when off, or on? Perhaps run it dry and then charge it up?
You used to be told, Charge it for 8 hours before you use it...
That surely can't be true of todays rechargeable battery technology?
[Q] charging and battery damage
If I leave my touchpad on the touchstone charger for long periods and the touchpad is switched on will this damage the battery?
I know I have had laptops and always ran them of the mains and the battery has stopped holding a charge.
Cheers.
I assume that the touchpad has a charging circuit that stops it charging when the battery is full, but batteries will always fail after a while regardless. Lithium batteries are best charged often and not let run down too much in between.
Also, dson't let a lithium battery run down completely, you can significantly shorten its life doing that.
Troute said:
Also, dson't let a lithium battery run down completely, you can significantly shorten its life doing that.
Click to expand...
Click to collapse
source? I thought lithium battery had no memory.
It's not a memory issue, running a lithium battery flat (deep discharging) has a physical effect on it where it will lose it's ability to recharge to as high a level as the previous charge. Each time this happens the battery loses more of it's ability to reach an effective voltage.
Don't take my word for it, do your own research, there's plenty of information out there it internet land.
alexhayuk said:
If I leave my touchpad on the touchstone charger for long periods and the touchpad is switched on will this damage the battery?
I know I have had laptops and always ran them of the mains and the battery has stopped holding a charge.
Cheers.
Click to expand...
Click to collapse
The dev for Dr.battery's has a thread that states that leaving your Touchpad on the touchstone for long periods of time should not impact the battery. Due to it switching to powering the unit after its charged. Though he is doing some testing on that. Also his app should be updated soon for the Touchpad (available through preware). I am still going to contact HP to discuss this as well. I would hate to damage a non replaceable battery. Will update if I have any new info.
Sent from my HTC Sensation Z710e using xda premium
Troute said:
It's not a memory issue, running a lithium battery flat (deep discharging) has a physical effect on it where it will lose it's ability to recharge to as high a level as the previous charge. Each time this happens the battery loses more of it's ability to reach an effective voltage.
Don't take my word for it, do your own research, there's plenty of information out there it internet land.
Click to expand...
Click to collapse
I have done my own research. That's why i don't think this is accurate.
If you have some proof please share.
Besides common aging, a Li-ion battery can also fail because of undercharge. This occurs if a Li-ion pack is stored in a discharged condition. Self-discharge gradually lowers the voltage of the already discharged battery and the protection circuit cuts off between 2.20 and 2.90V/cell.
Click to expand...
Click to collapse
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Basically through normal use you can probably expect around 250-300 full charge cycles (partial charges only count as partial and add up with other partial charges to be a full cycle) in an average battery pack before it has degraded to 80% of it's original capacity. I don't see anything that point to full discharges being damaging. However storing it for longer periods of time fully discharged can affect life.
ambivalent-one I think the figure of 250-300 charge cycles you've pulled from that page refer to deep discharge cycle tests done by them, personally I'd be very unhappy with that kind of lifespan in a battery in regular usage. The same page you've posted http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries shows a chart of charge cycles versus depth of discharge.
Table 2: Cycle life and depth of discharge
A partial discharge reduces stress and prolongs battery life. Elevated temperature and high currents also affect cycle life.
Charges - Depth of Discharge
500 - 100% DoD
1500 - 50% DoD
2500 - 25% DoD
4700 - 10% DoD
Click to expand...
Click to collapse
As you can see a L-ion battery can be made to last nearly ten times longer by keeping the charge level up near max.
Quote from http://www.batterieswholesale.com/damaging_batteries.htm
The Li-Ion cell should never be allowed to drop below about 2.4V, or an internal chemical reaction will occur where one of the battery electrodes can oxidize (corrode) through a process which can not be reversed by recharging. If this occurs, battery capacity will be lost (and the cell may be completely destroyed)
Click to expand...
Click to collapse
karan1203 if you reckon the information about deep discharge not accurate, can you provide the results of your own research that shows this?
Just let it die the first time, then charge when under 5%.
karan1203 said:
I have done my own research. That's why i don't think this is accurate.
If you have some proof please share.
Click to expand...
Click to collapse
Your research must've been incredibly basic in that case. The 2nd result I get when Googling "lithium batteries" gives me the wikipedia page which has a small amount of into on it:
http://en.wikipedia.org/wiki/Lithium-ion_battery
Look at the "Safety requirements" section for a start.
Also Google "lithium batteries discharge" returns some useful links.
Hi guys,
i want to ask - my phone charger has got these parameters -
input : 100-240VAC 50-60Hz 140mA
output : 5.0VDC 850mA
battery parameters :
BST-38
970mAh 3.6Wh
isn´t the charger too strong for the battery ?
charging my battery to 100% takes about an hour,sometimes less.
after charging the battery is quite hot.after 5-10 minutes the battery gets down to 80%, and it is stable from 80%.
i am charging just via USB now, because of i think that the charger is too strong and i think it can reduce battery life...?
what do you think ?
Yeah, it is strange.
The battery drains pretty fast after charging to 100% but later it is stable. Although I didn't notice that battery is hot, I think that charger charges battery too fast which is not good for battery IMO.
Mekki99 said:
Yeah, it is strange.
The battery drains pretty fast after charging to 100% but later it is stable. Although I didn't notice that battery is hot, I think that charger charges battery too fast which is not good for battery IMO.
Click to expand...
Click to collapse
No, its not charging too fast. Lipoly batteries have pretty tight specifications and the phone switches the voltage itself, for terms of compatibility a usb voltage is used (so less hardware is needed to step voltages from different sources). It also means you can charge from your pc without having a bypass cable like older model phones.
The mA output of the charger doesnt really matter. A high mA means the voltage will be more stable where as a low mA supply could cause undesirable voltage fluctuations.
A lipoly battery cannot be slow charged or trickle charged, the chemistry doesnt work that way. Slow charging could actually cause the battery to explode or in the very least make its performance poorer.
The battery appears to drain quickly in the first 10% but its an illusion caused by the software on the phone which measures the mAh drop. A lipoly battery may discharge from 1200mA to 1000mA in 10 mins and reach a plateau where is holds 900-1000mA for several hours. All that is required is to reset the battery stats so the phone can generate a new profile over several recharge cycles.
As I said, lipoly charge until near capacity and stop. They dont trickle charge, the charging circuit actually switches off. Those people who leave their phones plugged in 8 hours overnight do it no favours as it justs cycles the charger on and off, this could actually skew the battery stats giving a false reading in the first 10%.
The best thing is to charge until full and then remove from the charger, you can always charge it again in the morning before you go out to boost the %. For the best battery life you should maintain a charge above half as this keeps the chemistry from breaking down. Never ever let it go flat! When the phone registers 0% its not, its a safety mechanism and it will still have above half the rated mAh. Charge a dead lipoly and it will explode violently.
Using alternative charging methods of a lipoly is VERY dangerous. People have lost houses or even their lives by fiddling with them. They are not a forgiving as lion, nimh or nicad. With that said lipoly are cheap, reliable, have a small form factor and offer a high output in comparison.
The best device for charging the battery is the phone charger as it has the highest mA and most stable voltage. The PC comes second as most are only rated 500mA and can have voltage fluctuations in the range of 10% or more. Third... Nothing, there is no third - only flames and misery.
Sent from my U20i using Tapatalk
To get the best battery life, when should I charge my phone? When the phone almost runs out of juice, or whenever I can (below 80%) ? Please help!
Deep discharges are bad, but so is spending lots of time at maximum charge.
I'd consider charging around when you hit 80% if it's convenient, but if you're expecting to be on battery for a while soon, top off whenever you want.
Discharging to 5-15% is bad for your battery longterm.
So to get the best battery, I should charge when it is $80 right?
Sent from my SAMSUNG-SGH-I777 using XDA App
kvl19 said:
So to get the best battery, I should charge when it is $80 right?
Sent from my SAMSUNG-SGH-I777 using XDA App
Click to expand...
Click to collapse
There's no hard fast rule about 'exactly' when you should recharge it. Simply try and keep the phone from running < 20% a lot and never keep it always charged at 100%. If you get in the habit of charging in the 30-80% range, that would be best.
Basically throw out the old mentality of always using it as much as possible before recharging as lithium batteries simply don't work like the old nicad batteries from years past.
This phone uses a Li-Ion battery, and these batteries do NOT have any kind of "memory." Charge it whenever you want to. However, it's not really good to always keep it "topped off." (Deep discharges are also not good.)
If you are going to store the battery, drop it to 75%-50% charged first.
There are some things to consider, however:
If the phone's power circuit bypasses the battery when the battery is fully charge (instead of constantly pulling power from the battery while the battery is recharging), then leaving the phone plugged in is better than constant charge/discharge cycles. Based on the fact that this phone will work properly with NO battery attached when plugged in, this is probably a true statement (but I can't know for sure.)
Second, the phone itself might like to see the battery charged/discharged once in a while to calibrate the battery monitoring circuitry. (You never calibrate a li-ion battery - only the circuitry that monitors the battery.)
Here's a link with some interesting information:
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Take care
Gary
Got it. Thanks for all your information
A small note to add why you shouldn't 'keep' it above 80% (constant top offs and being left on the charger). In general when above 80% it's been found that lithium ion batteries have a 'higher state of activity'.
What that does to the battery is what it sounds like. Higher state of activity means higher wear and overall shorter lifespan.
That wear is easily seen in laptops. Many people have the habit of leaving them always plugged in while using and through the night, so they're always 'ready to go'. People who consistently do this to their laptops usually find after 1 year the battery life is noticeably shorter, 1 1/2 years 50% or so of 'new' capacity, and after 2 years looking at replacing the battery.
And I usually find a cheap deal on eBay for them, plus $50-75 for me. At least phone batteries are a bit cheaper.
Sent from my páhhōniē
hi guys, just wanted to share a very handy device i have come across that i really like. I have an extra battery and cradle, however i dont trust the charging capabilities of the cradle once it reaches full charge. I know the device itself will slow down and trickle charge once it reaches full capacity, but in the cradle im afraid of overcharging the battery. anyhow, i began looking for a timing device to prevent this. I came across this item
http://www.amazon.com/Belkin-Conser...=1421085461&sr=1-1&keywords=belkin+timer+plug
it has a half hour setting, a 3 hour setting, or a 6 hour setting. i began to find myself using this, not only for the cradle, but when i go to bed at night. i connect it to my phone. 3 hour charge, then it shuts off. im surprised these arent more prevalent. in fact, belkin was the only one i could find, (short of those xmas light dial timers lol). let me know what you think
I've been using the cradle and extra battery for a while now. No issues. I swap it out daily(well until I got my PMA sticker)
Even before then, I noticed no issue with poor battery performance or life.
Here's some helpful info from Battery University website:
Simple Guidelines for Charging Lithium-based Batteries
A portable device should be turned off while charging. This allows the battery to reach the threshold voltage unhindered and reflects the correct saturation current responsible to terminate the charge. A parasitic load confuses the charger.
Charge at a moderate temperature. Do not charge below freezing.
Lithium-ion does not need to be fully charged; a partial charge is better.
Chargers use different methods for “ready” indication. The light signal may not always indicate a full charge.
Discontinue using charger and/or battery if the battery gets excessively warm.
Before prolonged storage, apply some charge to bring the pack to about half charge.
Over-discharged batteries can be “boosted” to life again. Discard pack if the voltage does not rise to a normal level within a minute while on boost.
Go here for more detailed info: http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
I am seeing too many battery misconceptions. Let me clear them up.
STORAGE:
Lithium batteries like to sit around 50% for prolonged periods. If you need to power down your phone and store it, do it around 50-60%.
STATE OF CHAGE / BATTERY LEVEL
- It will NOT hurt to keep your phone on the charger. The charging circuitry cuts off power once the Cell hits 4.35 - 4.4v (If it did not, your battery would swell and heat up and then explode or catch on fire or both)
- It is MUCH more harmful to deplete the battery than it is to keep it full. Lithium batteries DO NOT like to go below a certain voltage depending on specific chemistry formulation.
For Example: Chevy Volt electric car Lithium battery is set to stay within 30% - 80%. They are limited to never exceed an SOC of 80% and never go below 30%. Source: https://en.wikipedia.org/wiki/Chevrolet_Volt
To expand on this. It is BETTER to keep the phone at 95% than it is to keep it at 5% for example. I personally would NOT want my battery falling low enough that it gives a low battery indication (usually around 15%). Usually I do not want it hitting 30%. That's a good rule imho.
CHARGE AND DISCHARGE CURRENT
Lithium batteries prefer to be charged slowly and discharged slowly. They do NOT like high charge and drain.
You guessed it. AVOID high charge scenarios such as Fast Charge. AVOID fast discharge scenarios such as gaming with high brightness etc.
TEMPRATURE
Lithium batteries do not like getting hot. They don't even like getting warm. Getting hot hurts it. Getting warm isn't as bad but it DOES degrade the total capacity over time.
Again, this is usually caused due to high charge or discharge scenarios.
It also ties in with Fast charge, wireless charge and especially wireless fast charge. Wireless charging is not efficient and energy as wasted as heat.
Personally I disable fast charge and do not use wireless charging. Good old USB Type C already charges quickly enough for me.
TLDR: Disable Fast Charge. Try to use USB Type C charging instead of wireless charging. Disable stuff you don't actually use. Try to keep power save on even if using it with very little power saving settings. Try to keep brightness at a reasonable level and not too high (This reduces AMOLED degradation too).
Remember: THE BATTERY IS NOT EASILY REPLACEABLE IN THE NOTE 7 !!!!!!!! Therefore the more you baby it, the longer it will hold it's charge and the lower the chance of the battery going bad.
My old Notes (Note 2 and Note 4) both still have VERY good original batteries because they were well taken of.
Good luck !
But I like fast charging and wireless charging lol
Ironic that when your phone is new, this is when the battery gets hot and used a lot. Perhaps with the water resistant phones we should update the firmware and restore the backup under water to keep the phone cool!
I will be sure to disregard just about everything in here. Guy is spreading false panic.
Actually "store mode" example: found in 7420 kernel source is 60-70% capacity. There are a lot of checks within source including battery swell etc. Don't fret about things, use your device. It's not as delicate as you may think. Who cares about the efficiency of wireless charging. Great if you've got it
90% won't keep beyond 2 years, just enjoy the thing !!
UN-recognized Developer of my SkyHigh Kernel v5.8.x powered SM-N920C
UpInTheAir said:
Actually "store mode" example: found in 7420 kernel source is 60-70% capacity. There are a lot of checks within source including battery swell etc. Don't fret about things, use your device. It's not as delicate as you may think. Who cares about the efficiency of wireless charging. Great if you've got it
90% won't keep beyond 2 years, just enjoy the thing !!
UN-recognized Developer of my SkyHigh Kernel v5.8.x powered SM-N920C
Click to expand...
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My device arrived at 59% charge, ties in with what you say about storage.