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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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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
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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!

Battery drain continues - hardware problem?

Hi people. I'm having battery problems since I bought my TP. I tried many ROM and Radios combinations and the problem persists.
Also tried discharging the battery and long charging while turned off (3 consecutive days) as recommended by some members here in xda.
Nothing solved. What could it be? A hardware problem (TP itself) or only a bad battery? Whats more likely?
I would like to know where can I buy an original spare battery to test this. Anyone know?
Thanks in advance!

google.... Here's one, but it's a yahoo page. Take down the oem # and start from there. Also, i think there was a little booklet that should have came with your tp about accessories... http://www.wirelessground.com/htctprooembatt.html

what about using non-official batteries? its risky? because there are batteries for TP for about 5 usd

You know that it will drain battery as long as it is in "sleep-mode" and not entirely powered down. You have to press the powerbutton for 3-4 seconds and then it asks you if you want to power off.

Mr.Sir said:
You know that it will drain battery as long as it is in "sleep-mode" and not entirely powered down. You have to press the powerbutton for 3-4 seconds and then it asks you if you want to power off.
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Of course, I mean my TP has a abnormal batt drain with normal use... the batt lasts less than 12h. I unplug it 10am and the battery is finished before 10pm depending on use.

have you by any change changed the TF3D theme?
i made my own theme, but i get the impression that battery drains much faster now. watched the battery fall from 21% to 18% in 3 minutes without doing anything besidesscrolling between TF3D tabs.i think themes might be making more use of the 3d accelerator and drain the battery..

I'm using default theme from ROMeOS v1.20

respider said:
Of course, I mean my TP has a abnormal batt drain with normal use... the batt lasts less than 12h. I unplug it 10am and the battery is finished before 10pm depending on use.
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yeah.. agreed..the bat is so fast drain. never have this problem with athena.

respider said:
Of course, I mean my TP has a abnormal batt drain with normal use... the batt lasts less than 12h. I unplug it 10am and the battery is finished before 10pm depending on use.
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Oh, I´m sorry
Do you have it turned on all the time in locked mode? Or do you put it to sleep/standby when you not use it?

Mr.Sir said:
Oh, I´m sorry
Do you have it turned on all the time in locked mode? Or do you put it to sleep/standby when you not use it?
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Standby when not in use. Actually, while I dont use, the battery drain seems normal, maybe 2 days or more. The problem is when I use it.

respider said:
Standby when not in use. Actually, while I dont use, the battery drain seems normal, maybe 2 days or more. The problem is when I use it.
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I have the same problem... When I dont use it (stand by mode) it lasts 2 days, but when I use it is lasts 12h maximum...
Tried everything.
Dont know what to do...

thats sad =(
maybe Ill try one of those alternative batteries in ebay

How about upgrading the Radio Rom!? I have found since going to 1.02.25.28 and having ROMeOS² v1.21 my battery life is much better than stock Roms of both!!
Its something worth trying and easy enough to change back...

Has there been any good solutions? My battery life is starting to annoy me.
Maybe I'll pick up a second battery and charging cradle thing for it...
That's one thing that I liked about the instinct...

I think we need a Stock TP to compare it to .. I know when I bought mine for the first day or two without adding anything to it, I didn't notice an issue with the battery. Now that I've installed tweaking software, theme, etc - battery drain is definitely noticeable. I'm thinking it may have to do with one (or more) of the programs we put on the phone.
Anyone here have a completely stock TP with a battery problem?

viper_campbell said:
How about upgrading the Radio Rom!? I have found since going to 1.02.25.28 and having ROMeOS² v1.21 my battery life is much better than stock Roms of both!!
Its something worth trying and easy enough to change back...
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tried all radios available in wiki page (except .11 and .16)
but that was with romeos 1.12 and dcs, I'll give a try for .28 with romeos 1.21
but I'm pretty sure that the problem is hardware, since many people use romeos 1.21 and radio .19 and dont have problems...

My phone had a very short battery life when it was bone stock too.
I'm afraid to see what it's like now with the tweaks!!!

mine is original stock TP batterry..but also facing the same problem. in average have to charge twice in a day..and the charging takes a few hours. so my phone is only running on battery for not more that 15 hrs in a day..

I'm hoping now thats its a bad batch of batteries problem and not a phone itself problem

I'm having a simlar issues. Put my TP on off/standby (single press of power button) at around 10pm, on flight mode enabled, all appliactions closed via task manger. Battery was at 80% when I did this. My TP's low battery alert woke me up at 4:30am at 8% charge.
My Blueangel used to last several days in the same state out of it's cradle without needing to be charged!
I to am hoping it's just a duff battery.
UPDATE: Seems I was being a twonk! I had unchecked the Auto-Shutdown option for a game I was playing and forgot to turn it back on, so my TP was turning on at midnight to do it's housekeeping and not shutting down again properly.
I still don't think my battery life is normal though, may try the following:
Some Chap said:
Found this on Sprintusers.com: It's an 06 post, but I wonder if it's still an issue. Found here http://www.sprintusers.com/forum/showthread.php?t=175896
Received the below from my Sprint rep.
It has been brought to my attention that there is a glitch in Windows Mobile phones that has been there since WM5… Apparently when a phone is first used the firmware looks at the charge on the battery as a reference point as to how long to charge it for until it is completely charged. So for example, if you have a WM phone that has a half charge on the battery when you first plug it in the device will only ever charge up 50% of the battery. You need to basically set the phone to put that marker in place when the phone is completely dead to gain the most battery performance you can.
Here is the best practice for doing this:
----------------------------------------------------------
1. Let the phone completely die on battery power.
2. Plug the phone in and charge for only about 5 minutes (just long enough it can boot up completely)
3. Perform a hard reset of the device, this is done differently depending on the phone model.
4. Then place the phone on charge for at least 8hrs.
---------------------------------------------------------
This should reset that marker that the operating system places on the battery charge cycle and will allow the phone to completely charge the battery rather than only a % of a full charge. This procedure can be done at anytime and I would suggest having your customers try this process first before returning a device based on battery life issues.
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[Q] Am I Damaging My Battery?

I go out at night mostly so by the time i leave the house my phones battery is about 75% full. I have the LG G2x. My question is sometimes before i leave i'll see that it's 75% full so i'll charge it back to 100% before i leave. Does charging the phone without it being drained damage the battery? should i just leave it alone next time i go out? sorry if this is already a thread just point me in the right direction.
Thanks.

You're not damaging your battery But if you never drain the battery completely, i'm not sure how good the battery will be after 6 month, so i recommend you drain it completely every couple of weeks.
Sent from my HTC Desire HD using XDA Premium App

There are several opinions about keeping battery health for more time. Recharging at 75% is not one of them, but it's not the worth of it.
Here's what i know and what i've heard:
* some manufacturers (laptops) have software that don't allow the battery to charge when it's over 80 to 90% - they say it helps on battery life
* it's common sense that you should recharge when you have 20 - 40% and do a full cycle once in a while (this is what i do)
In my opinion, charging only 25% of the charge in a regular basis will not really help to keep battery life...

I've personally had the best performance from batteries when I let them discharge as much as possible and then charge them to full without interruption.

some have also said that draining the battery too often can also damage it, is this correct?

They like to be ran down then recharged but not all the way down to nothing unless you are having a problem with bat life on a rom

groe886 said:
some have also said that draining the battery too often can also damage it, is this correct?
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Yes. You should not drain your battery all the time. Use normally, charge it when below 40% and yes, charge it back to full - that's the ideal thing.

l4g4rt0 said:
Yes. You should not drain your battery all the time. Use normally, charge it when below 40% and yes, charge it back to full - that's the ideal thing.
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+1 that is the best way. Li-on batteries should'n be drained completly because it can shorten their life.

I read somewhere that it is not important when you start charging your battery (20%, 60%...) but it's important that it finishes to charge up to 100% every time

I heard/read that LI-ION batter is good to charge when cap goes bellow 30%.

So whats the best method for a first-time battery charge?

Do i let the phone shut off from the battery reaching 0%, then charge it to 100% and be on my merry way?

I've read multiple theories, but I think u should take it down out of the box, then shut off and charge to full...I remember ASUS recommending that to a media outlet when the Transformer 300 came out a few weeks ago...so that is what I am going to do when I get mine.

Thats exactly what I did, I let mine completely die and then charged to 100%.

Be careful with how you charge the phone, rather with how low you let it get.
Depending on how technical you want to get about it purposefully letting a battery drop to absolute zero can cause some odd chemical reactions that while not immediately evident can some times shorten battery life.
I would recommend taking it out of the box and using it until it is low but not dead. Maybe 10 or so percent and then either turn it off and charge it or leave it on and charge it just do not pull the plug on the charger until it is at 100%.

Valdeck said:
Be careful with how you charge the phone, rather with how low you let it get.
Depending on how technical you want to get about it purposefully letting a battery drop to absolute zero can cause some odd chemical reactions that while not immediately evident can some times shorten battery life.
I would recommend taking it out of the box and using it until it is low but not dead. Maybe 10 or so percent and then either turn it off and charge it or leave it on and charge it just do not pull the plug on the charger until it is at 100%.
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This.
Full battery cycles are not good for long term life of Li ion batteries.
Also, its unlikely, but occasionally happens where discharging the battery to shutoff will render the battery unable to take a charge. The safety circuit on the battery is supposed to prevent this, but its not failsafe. I've seen more than a few reports on previous HTC devices where this happened. And since the battery on the One X is not easily replaced, the result can be disastrous.
The battery meters on phones are not very accurate in the best of circumstances. No need to drain to shutoff, 10 or 20% is fine. No value added to draining to shutoff, and the consequences can be very bad.
Drain to 10% or even 20%, charge to full, repeat 2-3 times. This is done just to calibrate the battery meter on the phone. Its a misconception that you can somehow increase battery life by "conditioning" the battery. But modern Li ion batteries do not suffer from memory effects, and conditioning only works for older tech NiCad batteries.

I do the same thing for all of my phones.
1. Activate and mess the heck out of it until it dies completely.
2. Charge it up to 100%
3. Mess the heck out of it again until it dies completely.
4. Charge it up to 100%
5. Mess the heck out of it again until it dies completely.
6. Charge it up to 100%
Then use it normally

Mine came dead! it didnt even turn on. so I'm charging it now

mehdi_s82 said:
Mine came dead! it didnt even turn on. so I'm charging it now
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That stinks. It must have been on in the box like that other xda member on here claimed
Sent from my MB860 using xda premium

Mine came with 1% battery so I just turned it back off and now I'm charging it up, i think the led will turn green when it's ready
Sent from my SGH-I897 using Tapatalk

How do you tell if the phone is charged to 100% while off?
While on, my battery percentage doesn't seem to go past 99%. Is that correct or is this last 1% just taking a very long time?
Update: NVM last 1% just took forever. LED does turn green when fully charged.
Sent from my GT-P7510 using Tapatalk

The LED will turn green once it's 100%.

Don't worry about letting the phone die and charging it up to 100%.
These batteries don't have a "memory" like older phones

mehdi_s82 said:
Mine came dead! it didnt even turn on. so I'm charging it now
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Mine came dead too. Charged it to 100% and now been using it and so far have 36% on 3h 9m on battery.
Screen at 84%
Does the battery life get better? Because it seems to be draining rather quick. Even though I have screen brightness less than half.

jshahanii said:
Thats exactly what I did, I let mine completely die and then charged to 100%.
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truciet said:
I do the same thing for all of my phones.
1. Activate and mess the heck out of it until it dies completely.
2. Charge it up to 100%
3. Mess the heck out of it again until it dies completely.
4. Charge it up to 100%
5. Mess the heck out of it again until it dies completely.
6. Charge it up to 100%
Then use it normally
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Maroon Mushroom said:
Don't worry about letting the phone die and charging it up to 100%.
These batteries don't have a "memory" like older phones
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Click to collapse
@Maroon Mushroom, Correct these lithium batteries dont have memory effect, but over discharging them will shorten its life.
I dont want to sound like an expert, but discharging the battery until it dies is not recommended. It will affect battery life/performance.
A couple of good references here: http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
http://batteryuniversity.com/learn/article/discharge_methods
http://batteryuniversity.com/learn/article/how_to_charge_when_to_charge_table

Ya, we use Lithium Ion (Li-Ion) batteries now which dont have a memory. The older Lithium Polymer (Li-Pol) batteries did have a memory and needed a certain charge method to get the longes life cycle out of it.

Awesome, thanks everyone
I turned it off at 20% and wen't to go buy my MicroSIM (ugh...) cant wait to play with it tomorrow

Why would you buy it? Pretty sure they would give one to you for free
Sent from my SGH-I997 using xda premium

bought it off Kijiji
It's offered by Rogers, but i'm on Telus

Hmm, i hate the idea of letting it die completely. But what i've always done is turned everything on and ran it through a low-powered usb source so it has a charge but the battery is still draining. So even if the battery runs dead it has power via USB plug [make sense?]. Usually having everything on [i do mean everything] and downloading a torrent so the internet is constantly under use. Then again i'm not sure how the One X will work out for this, but thats what i'm planning .

guys its lithium...u cant drain it to 0...even when android shuts down your at around 3.6volts. thats definetly not 0volts. no memory and android wont let you ruin your battery...so charge however whenever.
im qualified in lead acid. ni cad. nimh and lithium batteries. trust me..u cant hurt it unless you short it! !
Sent from my SGH-I897 using xda premium

Does anyone else's max stay on 1% battery for hours?

So my maxx will drain to 1% battery in about 3 days with 3 hours screen time. The thing is once I hit 1% it can stay on 1% and not shut off for hours. Right now its been on 1% for about 7 hours, I have a youtube video going just to see how much longer it will go. Its been playing a youtube video now for about 20 min on 1%.
I just got this phone last week, is this because the system hasn't fully calibrated the battery? Or is the battery defective in some way? Its kind of annoying because you think you are out of battery but it keeps going so I don't really know how much battery I have.

Definitely not normal. I'd do a factory reset to eliminate a software issue and if the issue persists seems like it must be a hardware issue, exchange it

These sound like calibration issues. Can you fully charge your battery and then leave in on the charger for awhile -- like an hour or more? That should calibrate it correctly.

I have never nor will ever let my battery get that low. These batteries don't like to be drained and then fully charged it's not healthy for the battery. I don't let my battery go below 30 to 40 percent if I can help it. Most of the time I let it get to about 50 percent then I charge it.

bigv5150 said:
I have never nor will ever let my battery get that low. These batteries don't like to be drained and then fully charged it's not healthy for the battery. I don't let my battery go below 30 to 40 percent if I can help it. Most of the time I let it get to about 50 percent then I charge it.
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not to be rude but where is you information or evidence backing your statement? this goes against everything i know and i certainly always allow my battery to fully die then i fully charge it over night while it is off, i believe charging at 40 percent fools the battery into thinking that is the end of the battery's daily life span and therefore dying prematurely due to it believing that 40 percent is the end.
I do not have any real evidence except i've gotten exceptional battery life with my Ultra after allowing a full cycle (draining all the way and then fully charging while powered down)...i have gotten just under 32 hours with 4 hours and some odd minutes screen on with about an hour of voice calls and random other usage such as tapatalk browsing, internet, texting and maybe some email or youtube....i occasionally play some games like the new CoD Strike Force

ahjee said:
not to be rude but where is you information or evidence backing your statement? this goes against everything i know and i certainly always allow my battery to fully die then i fully charge it over night while it is off, i believe charging at 40 percent fools the battery into thinking that is the end of the battery's daily life span and therefore dying prematurely due to it believing that 40 percent is the end.
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The best source is battery university. Here are a few good links. In the first, look at the third column (Li-ion), as that's the battery pack in the Maxx/Ultra/Mini
http://batteryuniversity.com/learn/article/how_to_charge_when_to_charge_table
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
From the second link (emphasis mine):
Similar to a mechanical device that wears out faster with heavy use, so also does the depth of discharge (DoD) determine the cycle count. The shorter the discharge (low DoD), the longer the battery will last. If at all possible, avoid full discharges and charge the battery more often between uses. Partial discharge on Li-ion is fine; there is no memory and the battery does not need periodic full discharge cycles to prolong life, other than to calibrate the fuel gauge on a smart battery once in a while.
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doogald said:
The best source is battery university. Here are a few good links. In the first, look at the third column (Li-ion), as that's the battery pack in the Maxx/Ultra/Mini
http://batteryuniversity.com/learn/article/how_to_charge_when_to_charge_table
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
From the second link (emphasis mine):
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And boom! All the I have known through all the androids I have has been wrong lmao. I really appreciate you posting this....all the years of trolling forums and reading what everyone is doing or have done to get their battery to last long for a daily cycle...appreciate this.
Sent from my XT1080

So happy I seldom charge up to 100% and leave it sit. I also never let it get super low.
Sent from my XT1080m using Tapatalk

Coming from a Gnex, I have a charger within 3 feet of me everywhere I go. I'm trying to break myself of the habit of plugging it in but mine still gets a charge at some point during the day, if only in the car. It has always been my practice to let my phones run down almost to dead maybe once every couple of months. I feel like it keeps the phone's battery meter calibrated although I have nothing to base this on.
Sent from my XT1080 using Tapatalk