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how to take good care of you batt

http://www.batteryuniversity.com/parttwo-34.htm
good read as it seems many still maltreat their li-ion
acording to old ni-cam myths

Also, make sure you read http://wiki.xda-developers.com/inde... revolutionary, comparative, numeric results!

I've always said this simple statement about LiIon: Charge early and often.
Do you need to plug the phone in every time you get off a call? No. Do you need to worry about it dropping below 80%? No. Just charge as often as is convenient. Sitting at a desk for a hour working on something? Charge. Driving for more than 15m? Charge.
I think if you obsess too much you might wind up with USB connector problems from all the cycles on the connector itself, but intelligent use of the above statement should get you the most out of your battery.
EDIT: Drat, replied to the wrong topic.

khaytsus said:
I've always said this simple statement about LiIon: Charge early and often.
Do you need to plug the phone in every time you get off a call? No. Do you need to worry about it dropping below 80%? No. Just charge as often as is convenient. Sitting at a desk for a hour working on something? Charge. Driving for more than 15m? Charge.
I think if you obsess too much you might wind up with USB connector problems from all the cycles on the connector itself, but intelligent use of the above statement should get you the most out of your battery.
EDIT: Drat, replied to the wrong topic.
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that would kill the battery life fast, yea u wont run out of battery soon but keep it up and ur battery is gonna die on u after talking for 1hr

Aznskill2k said:
that would kill the battery life fast, yea u wont run out of battery soon but keep it up and ur battery is gonna die on u after talking for 1hr
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er.......what?

i believe that you have to charge your battery all the way full then use all the power until it dies then you can charge it back again
but not sure

kevinutz said:
i believe that you have to charge your battery all the way full then use all the power until it dies then you can charge it back again
but not sure
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Click to collapse
This is the exact opposite of what this article says.
Sent from my custom ROM'd Captivate

conditioning the battery the first time you get a new phone also helps, alot of us just charge for a while them use it. all my phones i let them charge for a full 24 hours right after i get them

My battery only last 6 hours

Ugh, why don't people read the article BEFORE they comment?

newarkhiphop said:
conditioning the battery the first time you get a new phone also helps, alot of us just charge for a while them use it. all my phones i let them charge for a full 24 hours right after i get them
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Ehh, doesn't the charger uncharge when the battery is full? Like a safety thing?
Sent from my Desire HD using XDA Premium App

Some articles say that one battery life cycle is used up everytime when a full charge is done. Other articles say that one battery life cycle is used each the battery is connected to the charger.
I have not seen one article that shows the truth with facts.
Sent from my GT-I5800 using XDA App

kevinutz said:
i believe that you have to charge your battery all the way full then use all the power until it dies then you can charge it back again
but not sure
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Click to collapse
No offence but I always found this to be stupid reasoning.
What if you leave home with a quarter full battery and you get caught in the middle of a natural disaster (earthquake as an extreme example) and need to keep in contact with rescuers after being stuck in a building for 2 days?
Personally, I always charge my phone/laptop whenever convenient.

black50z said:
My battery only last 6 hours
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The only problem that your battery lasts only for 6 hours is due to too much charging...So when you will buy a new battery then make sure that only charge your battery when it will remain only 10%...And try to charge your battery with phone switched off..

Charge little and often, try to avoid deep discharge/charge cycles.
Back in the days of NiCd batteries there was the posibility of memory effect where if you didn't do a discharge/charge the battery wouldn't hold as much charge.
NiMH batteries do not suffer this, but discharge/charge cycles were required because when they started being used very few people had smart chargers so had to discharge to be able to time when to stop without overcharging, and also due to confused information pulled over from NiCds.
Top up charges are better for them too.
Lithium batteries also don't have memory effect, and are better off with top up charges.
Ask yourself this:
What would stress the battery more; running 1A through it for 10 minutes or 1 hour?
Also, as the battery discharges, its voltage drops so the current drain has to increase to compensate, discharging the battery even quicker (remember how capacity graphs drop off quickly?)
Say your phone needs 2W to run, with a 4v battery that's a drain of 500mA (P=VI)
When the battery has dropped to 3.5v then to produce 2W it takes approx 571mA.

batt problem
how to keep my batt good?

I've always just charged my phones overnight while I sleep. Never seen ill effects. If I don't make it home that night my phone still lasts through the next day.
It's not like that battery is irreplaceable. Go get a new one if your battery is nearing the end of it's life. By then you would have probably moved on to a new phone.

Rudegar said:
http://www.batteryuniversity.com/parttwo-34.htm
good read as it seems many still maltreat their li-ion
acording to old ni-cam myths
Click to expand...
Click to collapse
skimmed a few parts, but thanks for the read mate, learned tons.

as others allready mentioned, there are many different suggestions how to take care of the battery. I usualy reload the baterry only if the capacity is <= 5%, without unpluging it before it reaches 100%.

thanks for the info!

[Q] leaving the Transformer connected to the charger good or bad?

Hello everyone
I was wondering if its ok to leave the transformer connected to the charger.
Is it like the Evo with trickle down when it reaches 100%
I dont want to over charge it. If it were my laptop i would disconnect the battery at full charge. But its not possible to do that with the transformer.
I want to keep my cycle count low and prevent over charing.
I also wonder what happens in a few years when the battery is shot...

Charging is what damages Li-Ion batteries... I'd recommend not keeping it on the charger all the time. Android will purposely not keep the battery at 100% to help avoid some damage.
Li-ion prefer to be around 20-80% charge.

When battery is 100% and you keep the charger connected, heat will begin to build up and eventually you will kill your battery.
I'd do as with a notebook: charge till 100%, then remove battery or charger (in case of the tablet charger ) . Then use your tablet and recharge when needed / desired. And from time to time a full charge / discharge cycle won't do any harm.
Just my 2 cents.
Regards.

These tablets don't automatically recognize when it's fully charged and turn off the charging?

Ravynmagi said:
These tablets don't automatically recognize when it's fully charged and turn off the charging?
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They do. There are other threads asking why thier TF's don't show 100% when unplgged from the charger. Same as it does on my Evo.

I think pretty much every modern device recognizes a full charge and responds accordingly. In fact, MacBooks will throttle performance if the battery ISN'T kept in while the system is running on A/C.
Heat will damage a battery, but it's not heat from charging but heat from operation. If a notebook is poorly designed and the battery is near a heat source, then removing the battery might be a good idea (except with the aforementioned MacBooks), but that's independent of the charging issue.
I think it's fine to keep it plugged in. These devices are smart enough to manage such things. Of course, the TF's charging cable's so short it's hard to use when plugged in, but that's a different issue entirely.

CalvinH said:
When battery is 100% and you keep the charger connected, heat will begin to build up and eventually you will kill your battery.
I'd do as with a notebook: charge till 100%, then remove battery or charger (in case of the tablet charger ) . Then use your tablet and recharge when needed / desired. And from time to time a full charge / discharge cycle won't do any harm.
Just my 2 cents.
Regards.
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From what I understand this process cannot and will not kill the battery. This did happen in the old type of batteries with the ,emory effect but these new batteries and the OS's management system for charging does not allow the battery to be killed.
it will heat up and that would happen as there is a flow of electricity but not to a level that would kill the battery.
Cheers

IS it normal to go from 4% battery to 99% in under 3 hours ?
I thought this was supposed to take 8 hours to charge.
Cheers,
gpearson1968

gpearson1968 said:
IS it normal to go from 4% battery to 99% in under 3 hours ?
I thought this was supposed to take 8 hours to charge.
Cheers,
gpearson1968
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Yes that's normal. It's meant to take about 3hrs.

Thanks guys...
Still dont know about it. Because I think its like my EVO and technology got so good that my battery is protected.
I really dont want my transformer to become a expensive paper weight or non-mobile because after a few years it has 45 mins battery life.

I've got the first full charge and full depletion done. Is it ok to use while charging now as long as I fully charge and fully deplete it a couple more times?

error12 said:
Thanks guys...
Still dont know about it. Because I think its like my EVO and technology got so good that my battery is protected.
I really dont want my transformer to become a expensive paper weight or non-mobile because after a few years it has 45 mins battery life.
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Click to collapse
batteries will degrade over time....would you be keeping this tablet for over 2-3 years? a simple battery change could work if ever needed

I am no expert, but I have spent some time searching around the internet looking for information on the best methods for improving the life of a battery. Most of the information I have found said it is bad to completely discharge a Li-polymer battery. The articarles stated it was best to charge the battery when it reaches 20% to avoid shortening its life.
Sent from my DROIDX using XDA App

Batteries are like muscles - they like to be exercised.
Leaving the unit plugged in WILL NOT HURT YOUR BATTERY. Period. The charging circuitry in modern devices is smart enough to cut current to the battery once it has reached a certain level of resistance.
Batteries do not like being deeply discharged. Most devices will shut off before the battery gets too deeply discharged, but it's never a good idea to tempt fate by running it until the device shuts off.
What really determines a battery's life is the number of cycles it has been put through. A cycle would be a full charge followed by a full (or to a lower end threshold) discharge.
The old original Lithium Ion batteries used in laptops would usually last about 300 full cycles or so - about a year if you used it on the battery every day. Partial discharges of course only count as fractions of a cycle.
Given the life of these types of devices, considering we'll likely upgrade to the next big thing in a year or so, I don't think anyone here will come close to 'wearing out' a battery.

EMINENT1 said:
I've got the first full charge and full depletion done. Is it ok to use while charging now as long as I fully charge and fully deplete it a couple more times?
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As stated, these are Li-Ion batteries, and they do not need to be trained. The only reason you might need to do any training is to calibrate Android's understanding of the battery (although I doubt you need to do a full discharge for that, either).
It's not going to suddenly kill it, but it will over time hurt your battery's life.

I went ahead and did a full discharge/charge cycle, but only because Asus said to do so in the manual. Maybe the copywriter just copied/pasted from a circa 1990's manual for a device with a NiCd battery, but I figured if they're suggesting it, I might as well do it.

battery question

hi, is that tru, that is better to charge your device the first 3 times 12 hours? because i know that with the new batteries don´t need that like some smartphones?
and i hear that is better if i discharge totally the battery and then i charge until 100% so if that is true, that means that is not good to charge like 1 hour?
thank you.

It is actually bad for the battery (Lithium-ion or Lithium-polymer) to discharge it completely. You should always aim to grab the charger at around 20%, refill to 100%, then remove the charger.
Newer batteries don't worry so much about 'trickle charging' once the battery is full (and newer, more energy-conscious chargers may actually switch themselves off internally to prevent wastage and damage to the cell).
If you have a brand new phone, the first charge should be for 12-18 hours, preferably without use (if you can bear it). You won't see the maximum battery life from the cell until you 'cycle' (charge/discharge) it a few times, but after a week or so you should get a profound increase in battery life.
Just remember - no lower than 20%
Hope this helps!

343rg1z3r said:
NO! This is bullsh*t that u need to load battery 12 hrs, better take ur battery off and throw in sh*ting bowl and w8 sb to go toilet or you can urinate too and see, what happen! u can try it high voltage battery too, i hope that result is same..
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calm down before you get a stroke.

neto333 said:
hi, is that tru, that is better to charge your device the first 3 times 12 hours? because i know that with the new batteries don´t need that like some smartphones?
and i hear that is better if i discharge totally the battery and then i charge until 100% so if that is true, that means that is not good to charge like 1 hour?
thank you.
Click to expand...
Click to collapse
for first time it is good for the battery so that it gain its max capacity..so when you get the phone first charge it to 10 hrs.and dont use at that time and also charge your battery only when it goes below 5% because every phone is having its charge and discharge life...

I usually have my charger connected to my phone, is that a bad idea then?
No special reasons to do it but if must go out suddenly and i don't have enough battery...

Yes it is....your battery ruins day by day..just charge when the battery level is below 5%'...
Xperian8~ click thanks if it helps...

Thanked! My old cell phone could still power on without a battery using the charger, that's one of the functions which i miss on this smart phones.

Smart battery charging to preserve battery health?

Hi all-
As you all probably know Li-ion batteries do lose some capacity over time. And the more charge/discharge cycles they go through, the more they lose. However, this loss of battery health or longevity can be lessened by reducing the number of full charge/discharge cycles, by not charging all the way up, and also by not maintaining the battery at full charge for long periods of time.
For example, my Lenovo laptop has some smart charging software that only charges the battery to 60%. As I am normally using the laptop with the AC adapter, this helps preserve the battery, as keeping it up at 100% isn't the best thing for overall longevity. But if I know that I will be away from AC power for a while, I can switch the mode and it will charge all the way up to give me full capacity.
My question is this: does any such software exist for Andriod? I've looked around but not found anything. I am a fairly light user, and most of the time I am near AC power, so I wouldn't mind having my phone battery only charge to 60% percent or so. Ideally the software would have dual modes like on my laptop, one for preserving battery lifespan, and one to give full capacity on the days that I need it.
Any suggestions? Or does this not exist? Or are there hardware limitations of which I am not aware?

Phones tend to have longer battery life then laptops so as long as you have apps like DS battery saver, Greenify and Carat among other apps you will be able to get the most out of your phone.

jmxc23 said:
Phones tend to have longer battery life then laptops so as long as you have apps like DS battery saver, Greenify and Carat among other apps you will be able to get the most out of your phone.
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I think you misundetstood my question. I'm not asking about battery life (i.e. how much talk time or screen on time per single charge). I'm asking about battery health or life SPAN (i.e. I get 4 hours of screen on time now, but what about a year from now? Will I only get 2 hours because the battery health has declined due to over 300 charge/discharge cycles?).
All batteries lose capacity over time. Is there software that helps prevent this by limiting charge?

No there isn't. I don't see the point of having that kind of software on a phone as by the time that happens you will be eligible for an upgrade.

We had what you're talking about for the gnex. Called battery life extender. I don't know if this is available on the sg3 kernel wise.
Sent from my SCH-I535 using xda app-developers app

Thanks for the replies!
Battery technology may be good enough at this point to have good health until the next upgrade, so you make a good point. Personally, I don't care about the latest and greatest (and I'm a broke student) so I only upgrade when I absolutely have to. I'd probably still have my Droid X if it hadn't died.
And thanks for the Gnex info. I've heard they are notorious for poor battery performance. Seems like there's nothing for the GS3, but it's good to know that it is a possibility on at least some phones and that the devs have worked on it.

vondiesel said:
Hi all-
As you all probably know Li-ion batteries do lose some capacity over time. And the more charge/discharge cycles they go through, the more they lose. However, this loss of battery health or longevity can be lessened by reducing the number of full charge/discharge cycles, by not charging all the way up, and also by not maintaining the battery at full charge for long periods of time.
For example, my Lenovo laptop has some smart charging software that only charges the battery to 60%. As I am normally using the laptop with the AC adapter, this helps preserve the battery, as keeping it up at 100% isn't the best thing for overall longevity. But if I know that I will be away from AC power for a while, I can switch the mode and it will charge all the way up to give me full capacity.
My question is this: does any such software exist for Andriod? I've looked around but not found anything. I am a fairly light user, and most of the time I am near AC power, so I wouldn't mind having my phone battery only charge to 60% percent or so. Ideally the software would have dual modes like on my laptop, one for preserving battery lifespan, and one to give full capacity on the days that I need it.
Any suggestions? Or does this not exist? Or are there hardware limitations of which I am not aware?
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Click to collapse
I am always surprised at how few people realise that LiON is different from NiCAD. Im glad to see at least a few do.:good:

Over charge battery?

Hi.
I charge my phone overnight. 8 hours. Will that degrade the battery? Or does the phone prevent over charging?
Thanks in advance.

I wouldn't worry about it

No, if you leave it on 16 hours you'll get 200% battery level. Brilliant

RogerNZ said:
Hi.
I charge my phone overnight. 8 hours. Will that degrade the battery? Or does the phone prevent over charging?
Thanks in advance.
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Click to collapse
The phone prevents overcharging, however it is still not good for the battery to
a) always charge it to 100%
b) keep it at 100% for 8hours

The general advice is to keep the battery between 20 - 80%. Granted, most people need a full charge to start the day and some people don't hold on to their phones for long.
Fast charging degenerates the battery faster, a fact oems omit to point out in their quest for faster charging speeds.
If you're not in a rush, you should just use a normal charger.

No damage done
And any long term effects will not be noticeable
By the time you notice any battery degeneration from keeping it at 100% you'd probably be on another phone.

hi are you rooted? if so I suggest you use an app called Battery Charge Limit. You can set when your device stops charging (preferably at 80%) and when it starts charging back up again. Again, you need root.

Since launch, most of the time I do 20-80%. So far so good