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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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(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] Battery wont charge if too cool.

Hello, i have my sensation from 2011.
I recently bought him a new battery (2 days ago). !I didn't charge it while being closed yet.
So far i only charged him fully once.
The second time this morning (8 hours of charge time) it was only at ~76%.
In the first 2 hours it charged fast, and when (apparently, i don't know if it really has anything to do with it) the battery temp got lower it stoped charging, when i checked the hour when i woke up the battery started to charge again because the temperature of it raised.
I'm not sure if it has anything to do with battery temperature, I observed this from the screenshot.
When i charge it closed it ussualy charges in ~2 hours. But it barely gets to 3/4 charged when left 8 hours?!?! this is ridiculous.
Do any of you know what might cause the problem?

Is it a genuine HTC Battery? Have you tried it with a different ROM?
Maybe a calibration using Battery Monitor Widget can help.

It is a geniune one.
My other battery had this problem too.

[Q] New Battery Calibration

I bought a new battery for my oneplus one from vifocal.com and I think its original battery. The battery seems to be very poor. I use my phone for 1,5 hours from which the screen is on for about 1 hour and the battery has drained down to 50%. Yesterday as my phone went to zero I turned it on in recovery mode to keep the screen on as long as possible to really kill the battery and the screen stayed on for at least 2 hours. How is that possible if the battery indicator shows already 0%. Anyways I believe the battery drops down to 0% even really there is a lot of juice in the battery. Is there anyway to calibrate the battery so it would show the correct percentage and is there anyway to tell how big is the battery really? whether I got a fake one or not. thanks

andresantos said:
I bought a new battery for my oneplus one from vifocal.com and I think its original battery. The battery seems to be very poor. I use my phone for 1,5 hours from which the screen is on for about 1 hour and the battery has drained down to 50%. Yesterday as my phone went to zero I turned it on in recovery mode to keep the screen on as long as possible to really kill the battery and the screen stayed on for at least 2 hours. How is that possible if the battery indicator shows already 0%. Anyways I believe the battery drops down to 0% even really there is a lot of juice in the battery. Is there anyway to calibrate the battery so it would show the correct percentage and is there anyway to tell how big is the battery really? whether I got a fake one or not. thanks
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I've had an opposite issue few times - phone was shutting down while it was show that it still had battery (20% was the worst case). I fixed it by discrharging fully, then letting the phone charge all trough the night. this was the recommendation that I found on OPO forums from someone from their team.

Battery draining super-fast, on an irregular basis: How to check real battery health?

Hi everyone,
I have a Leagoo T5c with a more-or-less 3,000 mAh non-removable battery, and for the past few month, battery life has been somewhat erratic. The phone would go from, say, 50% to 10% battery in no time, and I would get the low battery warning, but at other times it could hold at around 45% for a while before really going down for good.
Last night around 8pm my time, the phone went completely dead while the battery indicator in the task bar said I still had about 65% left.
I tried what's described here and there as battery calibration: I left the phone turned off, patiently waited a couple hours (yes, yes, that long) for the battery to reach 100%, then left the phone off for another hour before turning it on.
In a matter of minutes doing nothing more than checking my Twitter TL, the battery went from 100% to around 85%, and was still there went I tucked in for the night, leaving the phone in Airplane mode as I always do at night.
This morning, I turned Airplane mode off and the battery said it still had 82%, which means minimal drain during the night, with all radio off.
Just a few minutes ago, the phone went completely dead after the low battery warning, and the battery held less than 10% charge.
WiFi is off, cellular reception is very good where I live, and anyway, I don't see how LTE could kill 70% of the battery charge in less than half an hour, even if reception was spotty, which it's not.
I plugged the phone into the charger it came with, put it in Airplane mode again, and it went from 10% to 70% just now in less than 30 minutes.
I know for a fact that fast charge isn't supported on this phone, at least not with the OEM charger, plus it has micro-USB, so I doubt the charger can feed it that much juice in so little time.
The charger itself seems to work fine: It never gets hot while charging, not the Leagoo, nor my old iPhone 6, since I use it for both devices.
So, long story short, is there a way or tool to ***really*** know what state that battery is in? I've tried both DevCheck and CPU-Z, and both say that the battery is in good health, and still retains its nominal capacity of more or less 3,000 mAh, but I have my doubts about that.
I think the battery capacity is reduced somewhat, and I need to know by how much.
Any help and input would be much appreciated!

I must add that I flashed a stock ROM on this phone (yeah, again...) a few days ago, so maybe it's the ART cache being replenished that's causing my battery issues, but still, the problem is so inconsistant that I don't know anything anymore...

I had to flash the stock ROM again after trying (again...) to root the device (successful, but doesn't bring anything of value) and finding it barely responsive.
I'm gonna leave the phone as is, ROM-wise, but my battery is still a matter of concern, because it dies on me at the 60-65% mark more often than not, though two days ago I let it drop to 30% without the phone shutting down.
Like I said, it comes and goes. I really need to know if that battery still retains its nominal capacity or not. Any help in that regard would be most welcome...