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[Q] Draining battery on first use?

Hi guys
I should be picking up my SGS2 today and I was just wondering what exactly I should be doing with the battery? I've read in a bunch of places that draining the battery fully and then recharging it fully gives better battery life, but I've also read this:
Lithium ion batteries do not respond well to full discharge, you will see reduced capacity and early failure if it happens too often. In any case it is not possible to overcharge the battery on a BlackBerry because the battery and phone have enough intelligence to control the charge (unless the battery is already defective).
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Click to collapse
(this is from crackberry.com but you get the idea)
What's the best thing to do?
And on Android phones, when the battery indicator shows 20% or something, is that when the phone is going to die? Or will it die at 0%? Obviously at 20% it would be to protect the battery but maybe Android has been programmed to show 0% when the battery is actually at 20%.
Thanks,
Elliott

read manuals !!!!!! You can see this

Did not receive an owners manual with my phone. Anyway...phone is charging now so too late I guess...

Starholdest said:
Did not receive an owners manual with my phone. Anyway...phone is charging now so too late I guess...
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The manual is probably stored on the phone, at least my new Ascend II came with its stored on the phone, you have to goto the big menu (forgive me for not knowing the technical term for it) to find it however

i got my battery fully charged...then in the first day i discharged it till 10% at least that's what my phone was saying
i read too that the new li-ion batteryes do not need to be "formated" (fully discharged till the phone dies and then fully charged with the phone turned off) in android case i think that thing is not posible coz it needs at least 5% to pass the bootloader and then begin to charge
anyway in my manual it says that the battery will begin the normal state after 8 days of use, until then it may disschage quick
i have a motorola defy

Calibrate the battery. Charge the phone while its switched off for about 6 hours, and then use the phone untill the entire battery runs out and it switches off on its own. After this, the phone should be able to use the battery properly.

i just used my galaxy and made it empty, then charged it full.
nowadays i have runtimes from 3days (72 hours) and then its @ about 5%

there seems to be a lot of back-and-forth regarding whether or not draining a battery is healthy; i drain my iphone battery down to zero about once a month and the battery has been doing fine for two years . . . whether it would be doing just as well without the draining time is anyone's guess.

I have always been under the impression that lit-ion batteries do not need any kind of special care or break in. But since our phones estimate the charge, we should occasionally let the battery run out to reset the calibration in case it gets screwed up.
Sent from my DROIDX using Tapatalk

I don't think you need to worry about draining the battery till it's dead. My phone dies often and the battery is still kickin It's my understanding, that the purpose of draining the phone before you charge it is to calibrate what the OS says for charge remaining to the battery's actual charge.
Or something like that...

Hi all,
I have my sgs 2 since June and it's working pretty well apart from the battery drain which is very harmful in my daily life
I've recently flashed the Cognition 1.30 (last friday). Before that, my sgs was able to last the entire day before discharging with a moderate use (10-20 mn on games, few sms, 15 mn consulting mails, 1 hr on internet). Since i've flashed with the cognition Rom, the battery drain is really awesome!!!!!!
I fully charge the phone (switched off) then when i switch it on and the phone stays idle, after 1 hr or so, i've already lost almost 20%. When i'm on internet or playing games, the battery loss is approximatively of 1% per min.
I've made a full wipe and recalibrated my battery so normally it should at least last a day and thats not the case.
Could somebody help me or should i buy a new battery and test it ?
Because i relly like this rom and from others users, it has a good feedback concerning the battery use

Battery XE vs Galaxy S2 - can some1 comment?

Hi all,
I have a Samsung Galaxy S2 from work, have had it since summer. Got the Sensation XE for private recently and been having a feeling it's consuming the battery well faster. After making some searches and reading some I purchased one of those Anker 1900mAh batteries, got it yesterday and charged it up. I then had both phones lying on the table, screen off doing nothing. About 2-3h later the Samsung was at 98% whilst the HTC was at 87%!!!
I decided to at least restart the HTC and after the restart it showed 88%. I then left them over night, more or less 8 hours - right now the Samsung is at 90% and the HTC at 74%.
Now I know that batteries don't reach their top performance immediately but require a couple of charges first, but how do these numbers sound to you guys? The 13% drop within the first 2-3h was scary and ridiculous, but the overnight loss seems reasonable yet still far worse than the S2. And this is with the Anker battery, not the original.... the Samsung is rated at 1650mAh only.
I've not done this test with the original battery yet, it seems that it kept it's charge better than the Anker though - although on the other hand it had a tendency of staying at 100% for quite a while then dropping faster. Is there some procedure to calibrate/reset battery perhaps?
Cheers
//Joris

You could let the battery of XE die and recharge it back to 100% for a few times. If you are rooted be sure to clear battery stats first when you battery is fully charged before doing the above procedure.
Somehow i've been getting rather great battery life with Anker. Probably only losing around 5% when left overnight. Did you clear battery stats when trying out Anker? That may be the reason why the battery life seems poorer as compared to Galaxy S2.
Sent from my Sensation using Tapatalk

Hi m8,
cheers for the reply - I do not currently have the phone rooted and, as a matter of fact, would like to keep it that way. Was looking into the wipe battery stats/resets but all I did find related to rooted phones. Guess there's no way for a non-rooted?
It's currently down to 32%, the Samsung is at 70%. That said the HTC has had some light use whereas the Samsung has been sat in my pocket all day, doing not much more than pushing work email and some syncing.
Was thinking to plug it into charger now but better to wait till it's nearly dead? Or even till it shuts itself off?

Sense is a resource hog so that is where probably the majority of your power is going, take a look in the phones battery settings

Had it on charge over night (phone switched off), unplugged it around 7 this morning, so approx 7 hours ago. It's now at 92% with some light use, which is quite impressive - if it's "true" (I'm expecting that battery level is going to drop much faster during the day than it did this morning, when it was at 100% quite long).
Right now it's showing:
34% Screen
34% Phone idle
18% Phone inactive
10% Phonecalls
4% Camera
Not sure that's actually since last charge though, as I've no recollection of using camera at all :/
*edit*
whilst posting this and having screen active it dropped to 90%... so let's see how it is going to hold up during the day...

[Q] How to take good care of battery ?

Ok guys, so recently I'm starting to use my smarthphone ( xperia ray ) to do lots of things and one of it is as my Agenda. Now the real problem is, every time my phone is running out of battery I must charged it ( obviously -.- )
And everytime I charged it I always shut it down because people say that it's better to shut i down so the battery will have a long life
Can you guys tell me how to take good care of a battery ? And is it true what I said ?
( Sorry for my english -.- ):fingers-crossed:

I don't really think that offline charging will have any impact on battery life.
Anyway, from my experience the best way to conserve your battery health is to charge it in full cycles. That means not to charge it when it's on 40% but let it drain to almost empty or empty and then let it charge until it's full.
Your battery life will become worse with time. That's how rechargeable batteries work. Every battery type (Ni-MH, Ni-Cd, Li-ion etc.) has a different amout of recharge it can take. It won't recharge fine 100000 times and then after the 100001st time "die". It's life gradually shortens.
That being said, if you haven't used a phone/battery for a long period of time, it is always wise to drain it totally and charge it full for 4-5 times and then you will notice an improvement in battery life.
Also lower your display brightness. Display is eating most battery power, especially if you're using your phone a lot

CCVader13 said:
I don't really think that offline charging will have any impact on battery life.
Anyway, from my experience the best way to conserve your battery health is to charge it in full cycles. That means not to charge it when it's on 40% but let it drain to almost empty or empty and then let it charge until it's full.
Your battery life will become worse with time. That's how rechargeable batteries work. Every battery type (Ni-MH, Ni-Cd, Li-ion etc.) has a different amout of recharge it can take. It won't recharge fine 100000 times and then after the 100001st time "die". It's life gradually shortens.
That being said, if you haven't used a phone/battery for a long period of time, it is always wise to drain it totally and charge it full for 4-5 times and then you will notice an improvement in battery life.
Also lower your display brightness. Display is eating most battery power, especially if you're using your phone a lot
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Thx man !!! You helped me a lot
Sent from my Xperia Ray using xda app-developers app

Never over charge,like after charing 100%also never plug in to current,as it bring downs the battery performance later.....
I have wasted my 2 mobiles battery in same way.
I even fear for battery bust!
SENT FROM MONSTER ! ! !
HIT THANX OR I WILL JUST
CRY...

Battery life is affected by temperature, so try not to let your phone stay at high temperatures for too long

sanjaykumar.sanjay69 said:
Never over charge,like after charing 100%also never plug in to current,as it bring downs the battery performance later.....
I have wasted my 2 mobiles battery in same way.
I even fear for battery bust!
SENT FROM MONSTER ! ! !
HIT THANX OR I WILL JUST
CRY...
Click to expand...
Click to collapse
You can't overcharge your battery, that's a myth. It charges to 100% and then it stops charging, even if it's still connected to a power source. It starts charging again when it drops to 95% (hence why you sometimes see "97% Not charging" on your phone).
And yes, in some cases temperature can affect battery life but usually only in short-term. Still, it's a good idea not to leave the phone in direct sun in the summer or in your car in the summer. Extremely cold temperatures can affect its life too. Most batteries actually have written on them what temperatures they can withstand.
Sent from my Xperia X10 using xda app-developers app

changed battery, cooler, faster, longer.

Recently changed my battery for no real reason but the fact that I had another fully charged and couldn't be bothered plugging phone in.
So off for the rest of the day I went, noticed instantly that battery was lasting longer. At 60 percent I had exactly 2 hours screen on and by the end I had gotten well over 4 hours. My old battery used to get that but after update to 4.3 I was getting less (approximately 3 hours). Getting less battery time after the update was normal to me as not many people know that from 4.2.2 to 4.3 samsung removed the brightness reduction profile used in specific apps like chrome/browser to conserve battery (80% of full brightness setting). This was done to get battery life points at release date.
On top of that I noticed the phone was cooler and more faster, this however was not major just a more stable sense of feel.
Now the point of this post is to find out why, now I know there are issues with batches of battery's but unsure of its implication.
Another possible theory is faulty battery causing higher heat output and power loss which could also have at times caused throttling of phones performance to prevent damage (which we all know it does, quick example is using phone heavily while charging)
What you people think

Battery Very HOT!
I am pissed at Samsung. My phone nearly burned a hole in my pocket and lost its juice inless then 30 minutes when it approached 30% battery. I went to the battey tab and took a screenshot of its discharging curve! No surprise! The battery was hot and lost nearly all of its power in less than 15 minutes. I have yet to take it to Samsung to get a new battery before it catches fire!
Any recommendation on how to prevent that from happenening?
Michael Ceitlin
SG4-I9505 4.3

MCEITLIN said:
I am pissed at Samsung. My phone nearly burned a hole in my pocket and lost its juice inless then 30 minutes when it approached 30% battery. I went to the battey tab and took a screenshot of its discharging curve! No surprise! The battery was hot and lost nearly all of its power in less than 15 minutes. I have yet to take it to Samsung to get a new battery before it catches fire!
Any recommendation on how to prevent that from happenening?
Michael Ceitlin
SG4-I9505 4.3
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Click to collapse
Buy a other battery, you can get one cheap on ebay (Don't buy one that is really cheap, they are mostly ****ed up) :highfive:

MCEITLIN said:
I am pissed at Samsung. My phone nearly burned a hole in my pocket and lost its juice inless then 30 minutes when it approached 30% battery. I went to the battey tab and took a screenshot of its discharging curve! No surprise! The battery was hot and lost nearly all of its power in less than 15 minutes. I have yet to take it to Samsung to get a new battery before it catches fire!
Any recommendation on how to prevent that from happenening?
Michael Ceitlin
SG4-I9505 4.3
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Click to collapse
That isn't the battery's fault; there is something on the phone that is using up 100% CPU (explaining the heat and rapid battery drain).

yuuuuuuuu said:
That isn't the battery's fault; there is something on the phone that is using up 100% CPU (explaining the heat and rapid battery drain).
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Agreed. Although, the battery could be the start. My phone gets extremely hot. I check the CPU usage and it's being occupied no matter how many times I clear the RAM.

If I'd be you, I would start from the battery callback... I would look if my battery is not swollen, if its serial is starting with BD...
but, it is me. I have a strange behaviour to start from looking if similar problem occurred for someone here in the past...

Battery help

So far the battery life has been a letdown, a big shame since this is my first Android and I was loving the phone otherwise.
Firstly is it wise to charge the battery to 100%? I charge from around 50% but I know that the last 10-15% is done so at 4.3 V which is supposed to be bad for its lifespan since its going beyond its capacity.
Secondly I like to do some gaming on my device, right now I want to use the Drastic emulator. It makes my phone quite hot and as expected drain the battery (though not as much as I expected). How is playing while the phone charges for the battery's health?

Same Case here!
And tbh.. sony already made the dualshock 3 is functioning again z5 and that make me super sad, cause i only had a dualshock 3.. ??
Btw i heard that charging phone while playing with it will not damaged the phone itself

Heat is bad for battery life. Charging to 100 doesn't hurt though, as the battery will not over charge (in fact 100% is not go capacity of the battery usually) draining it to 0 will hurt though, as the battery is 'happiest' around 40-60% and lower causes some crystal formation on the cathode.
Sent from my E6683 using Tapatalk