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2250mAh battery - not performing good!

I purchased a new 2250mAh extended battery recently from megacapacity.com.
In a full charge it gives me 18-20 hours backup with 1 hr talk time only. I don't even use Wi-Fi, GPRS. Just simple calls.
Is it normal? i dont think. Original battery 1050mAh gave better performance when it was in good condition. What could be the issue?
I have tried almost every ROM but its almost same in every case.
Anybody having 2250mAh battery? pl share your thoughts.
Is there some problem with device not charging optimally or battery is bad?

2250
I have a 2250 battery purchased from megacapacity itself. The first charge lasted for 50 hours. The battery at the time of recharge was around 20% but I recharged again. I am sure it would have gone for another 10 hours at least.
This is with moderate calls, browsing, solitaire, always on Microsoft Push mail and lot of email reading and writing. I was basically testing the battery backup; so kind of stressed my phone a bit to see the actual backup time available.
On a related note, I was definitely not happy with megacapacity as they didn't send me the correct battery cover for vox and never responded to any of my emails. So now my phone is without battery cover. And I am planning to buy one more normal sized battery because of this. Thanks to megacapacity.
Sankar
PS: - I am using fireburned 6.1 stable rom 1.4.

I am pretty happy with Polar CEll 1300 mAh battery. It gets me through the day with heavy use! It dies when I am IMing over Wifi for a couple of hours in the evening.

Is it device charging issue?
My device was also working good with original battery. I used it for approx 18 months. After that (couple of months back) it started giving problem shutting down device suddenly while in the call. Its calibration was totally disturbed, i happend due to high temperatures some time when in car, i think so.
In nutshell that battery was of no use to be thrown out. Then,
I bought 2250 mAh but its not giving expected performance, its lasts for max one day with normal use.
Could it be due to issues with device charging circuit? It gets charged fully in one hour. i suspect there might be some issue with device circuit.
or finally battery is not good?
Pl advise.

skchattha said:
My device was also working good with original battery. I used it for approx 18 months. After that (couple of months back) it started giving problem shutting down device suddenly while in the call. Its calibration was totally disturbed, i happend due to high temperatures some time when in car, i think so.
In nutshell that battery was of no use to be thrown out. Then,
I bought 2250 mAh but its not giving expected performance, its lasts for max one day with normal use.
Could it be due to issues with device charging circuit? It gets charged fully in one hour. i suspect there might be some issue with device circuit.
or finally battery is not good?
Pl advise.
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Click to collapse
parthabhatta & h4waii,
You both have good experince with VOX battery, pl share your thoughts on this.

Hi,
Actually I use a battery bought from megacapacity but its 1100mAh. The battery is not giving me any problems and after a few calls, roughly one hour surfing and some music playing 20-30% battery is still left. So what I feel is being 2250mAh it should last atleast 80% more than 1100 mAh if not double. You can check the Power management battery bar while charging - whether it shoots up occassionally at random or gradually increases with increments of 1% till it attains 100%. If it shoots up, try with USB charging and see if the problem recurs. Give it a try and let us know.

Just be careful of using BIG battery.

parthabhatta said:
Hi,
Actually I use a battery bought from megacapacity but its 1100mAh. The battery is not giving me any problems and after a few calls, roughly one hour surfing and some music playing 20-30% battery is still left. So what I feel is being 2250mAh it should last atleast 80% more than 1100 mAh if not double. You can check the Power management battery bar while charging - whether it shoots up occassionally at random or gradually increases with increments of 1% till it attains 100%. If it shoots up, try with USB charging and see if the problem recurs. Give it a try and let us know.
Click to expand...
Click to collapse
Thats a good idea, sure i will check and let you know.

I charged my 2250mAH in an external charger, which removes any possibility of the device shutting off charge after it reaches a certain voltage. It allows the battery to make that choice. I had good use with it, very heavy usage and it would last drastically longer than the OEM 1100mAH unit. I'd recommend just buying a 1300mAH as the 2250 is very cumbersome to carry around on the device.
Again, I still have mine - if anybody wants to buy them.
There are a few issues with keeping the sheet in contact with the pins, else it will shut off randomly, I padded it with paper and pulled the pins out a bit.

i got mine a year ago from ebaystore dmc-batteries.
first i also got the wrong backcover, but they sent me very fast the correct one.
The battery is definitely not twice as strong as the original one.
At normal use I think the max is 1,5 day. Light use gives me 2 days but heavy use with bluetooth or wifi or gprs only 1 day.
as h4waii I had in the beginning some problems with the contacts and sudden loss of power because of that, but that disappeared with time

Still I can't make a point...I'cant determine were is good to buy (obviously referring xda user's opinion to how much the battery lasts) and where is better not to buy. LoL

TheBo said:
Still I can't make a point...I'cant determine were is good to buy (obviously referring xda user's opinion to how much the battery lasts) and where is better not to buy. LoL
Click to expand...
Click to collapse
dmc-batteries gave me good service and are quick and friendy in their replies. I recommend them.

Thank you birdibird , but my intention was a survey to know what brand (seller) of ezxtended battery lasts more than an other. Just that
Because I've read of battery lasting 4-5 days with normal usage and others not lasting more than 1!

[Q] how to calibrate the battery for it to last longer??

i heard from my friend that HTC need to do battery calibration. is it true??

Don't think so. Another phone had a "calibration" routine but I haven't heard anything on this one. I tried the calibration routine from the other phone on mine and noticed no difference.

I really have a sucky battery life on htc sensation. I am trying to figure it out how I could get it to last for more than 12hours with average use...

I bought a replacement battery. http://www.amazon.com/gp/product/B0055QKZBS

While a lith-ion battery doesn't learn or have a memory, the battery does have a chip in it that needs to be calibrated. You'll need to cycle your battery from fully charged to fully discharged 3 to 5 times to calibrate this circuit. Normally a LI battery doesn't like to be fully discharged, so try to avoid doing this in everyday use. Better to give it maintenence charges. And heat is a big enemy of these batteries as well.
And seems to me 12 hours is pretty good battery life for a smart phone.

ickster said:
While a lith-ion battery doesn't learn or have a memory, the battery does have a chip in it that needs to be calibrated. You'll need to cycle your battery from fully charged to fully discharged 3 to 5 times to calibrate this circuit. Normally a LI battery doesn't like to be fully discharged, so try to avoid doing this in everyday use. Better to give it maintenence charges. And heat is a big enemy of these batteries as well.
And seems to me 12 hours is pretty good battery life for a smart phone.
Click to expand...
Click to collapse
+1, very well put.
2 points.
1. There are also battery stats on the phone, which need to be built by full charge/discharge cycle.
2. Discharge phone till it's dead with no fear, battery controller shuts it down when there is some juice left. It's like reserve in your tank, it shows you have petrol for 0 miles/kilometers, but in reality there is another 5 litres sitting in the tank.

I worked in the cell phone industry for a long time. The best thing i have seen for a full charge is to regulaurly do a full charge and than turnphone off and plug back in until indicator shows full again(if it shows full already charge for half to full hour). I have always seen better results. Also if rooted wipe battery stats in advanced before flashing any radio or rom.
Sent from my HTC Vision using XDA App

dunes20 said:
I worked in the cell phone industry for a long time. The best thing i have seen for a full charge is to regulaurly do a full charge and than turnphone off and plug back in until indicator shows full again(if it shows full already charge for half to full hour). I have always seen better results. Also if rooted wipe battery stats in advanced before flashing any radio or rom.
Sent from my HTC Vision using XDA App
Click to expand...
Click to collapse
This may easily be true. I think I read that the battery doesn't actually like being fully charged and that most chargers shut down early because of this. Maybe your tip has something to do with that. I don't know myself how that will correllate w/ calibrating the charge circuit that I spoke of.
Google is definately your friend here.

wrek said:
I bought a replacement battery. http://www.amazon.com/gp/product/B0055QKZBS
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Click to collapse
That's a very intersting battery you got here. It has bigger capacity than the original one. Does it have the same size? Were you able to fit it in and put the original cover back? Have you noticed a noticeable improvement in battery life or is it just scam?
I don't have the tmo 4g, I have the european version, but I believe it should work too, shouldn't it?

Out of the box.... Use it till it dies completely. Charge it 100% without interruption.
I've ALWAYS had great battery life on all my devices using that method.
Do that a few times a month when it's convenient....you'll have a happy battery.
Battery and DRIVER need to be conditioned/calibrated.
I get 12-16 hours with fairly heavy use. If you want more, ya need to wait for different battery tech OR get a dumb phone.
Asking for more than 12 or so hours is just silly with a device this powerful and a display this large. I'm not someone who likes to cut the balls off my superphone to save a few hours on battery life. I'd rather get 12 hours and use this phone the way it was intended too, than get 24 hours and have silly progs like Juice Defender running. Unless you know you're gonna be lost in a forest for a few days, don't most people have access to a charger sometime during their day

eadred said:
I really have a sucky battery life on htc sensation. I am trying to figure it out how I could get it to last for more than 12hours with average use...
Click to expand...
Click to collapse
Disabling the HTC Hub sync helped mine a lot.

My phone has been unplugged for 10 hours, I have 1h 17 minutes of display on time, taking 67% of battery. The rest is spread between Cell standby 11%, Wi-Fi 11%, Phone Idle 8% and Maps 3%.
It is now standing at 29% battery. I find that awful and can't believe any of you say it is normal. I have disabled HTC Hub and Sense sync and all the settings are pretty much the same as on my Galaxy S2.
On the SGS2 I manage to easily get 3 to 4 hours of screen time before the battery goes down to the thirties/twenties and a lot more heavy usage than I've managed on the Sensation. I'm on my second battery cycle and I really hope it improves because I'm very underwhelmed so far.

eadred said:
That's a very intersting battery you got here. It has bigger capacity than the original one. Does it have the same size? Were you able to fit it in and put the original cover back? Have you noticed a noticeable improvement in battery life or is it just scam?
I don't have the tmo 4g, I have the european version, but I believe it should work too, shouldn't it?
Click to expand...
Click to collapse
I found an even larger battery:
http://uk-batteries-galore.co.uk/HTC/32640-Sensation.html
I might wanna give this one a shot, but I am a bit afraid putting battery not manufactured by htc in my phone.

Guys if bothered to look in the Accessories thread, you'd see that there is 1900 battery which some people already have and are very impressed with it.
Sent from my HTC Sensation Z710e using XDA App

HTC QUOTE
Charging the battery
The battery is partially charged when shipped. Before you turn on and start using HTC Sensation, it is recommended that you charge the battery. Some batteries perform best after several full charge/discharge cycles.
I spoke to a HTC REP once regarding batt life on my DHD
He advised a calibration as follows for HTC phones
Make sure fastboot is off.
1. when your battery is low, do a full charge for about 8 hours, your light should now be green. once its full, disconnected the phone
2. Fully switch off the phone(pull battery out if needed then put in). and plug in charger again for an hour, the light will actually be orange even though it was green before you turned it off.
and your screen should load the charging icon for when its turned off.
3.once it is green, turn on the phone. (put in pins or passwords etc) leave the phone on for a minute, then fully turn off again.
4. charge again for an hour and your charging indicator should be green and your battery is calibrated.!

Spybreak said:
My phone has been unplugged for 10 hours, I have 1h 17 minutes of display on time, taking 67% of battery. The rest is spread between Cell standby 11%, Wi-Fi 11%, Phone Idle 8% and Maps 3%.
It is now standing at 29% battery. I find that awful and can't believe any of you say it is normal. I have disabled HTC Hub and Sense sync and all the settings are pretty much the same as on my Galaxy S2.
On the SGS2 I manage to easily get 3 to 4 hours of screen time before the battery goes down to the thirties/twenties and a lot more heavy usage than I've managed on the Sensation. I'm on my second battery cycle and I really hope it improves because I'm very underwhelmed so far.
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Click to collapse
With all due respect....how is that awful?? It's fantastic....
I think you're too caught up in the percentage number the stats page shows for battery use. It doesn't matter one bit if that graffic shows the display at 99.99%. As long as you're getting a full day out of your Sensation....isn't that all that really matters? Or am I confused by what bothers you?? Sounds to me like you're getting a full day...unless you don't sleep??
You've been unplugged for 10 hours and it seems as if you have another 2-4 hours left with that 30%.... Whats wrong with that? It's great.
This is not a Nokia 6133 It's a dual-core superphone, with a 4.3" qHD display.
Of course by the nature of the tech, amoled will be more efficient with regards to display...but as far as I can tell, the GS2 doesn't last any longer than this phone on a regular day to day basis under normal to heavy use.
I get 12-16 hours on a charge with fairly heavy use. Sync, WiFi, Calls, Web, GPS...nothing disabled or throttled.
I wouldn't get caught up with that % number in the battery stats....it's misleading....big time.
Condition the battery properly....you'll never have any battery issues...unless it's faulty.
Also people just need to be realistic with regards to battery life.... A gallon of gasoline will get you much further in a VW Bug than a Bugatti....

lunze86 said:
i heard from my friend that HTC need to do battery calibration. is it true??
Click to expand...
Click to collapse
There is an app to calibrate your battery, but you need to be rooted. Go to www.teamroyal.net and there is instructions that you MUST follow. Read up on it now so you can be prepared for when we get root. You also ONLY want to calibrate your battery once every 4-6 weeks, and only if it needs it. Doing it too often can fry your battery.
I know this doesn't directly answer your question, but I hope it will help many once we get root.
Sent from my HTC Sensation 4G using XDA App

ikhzter said:
HTC QUOTE
Charging the battery
The battery is partially charged when shipped. Before you turn on and start using HTC Sensation, it is recommended that you charge the battery. Some batteries perform best after several full charge/discharge cycles.
I spoke to a HTC REP once regarding batt life on my DHD
He advised a calibration as follows for HTC phones
Make sure fastboot is off.
1. when your battery is low, do a full charge for about 8 hours, your light should now be green. once its full, disconnected the phone
2. Fully switch off the phone(pull battery out if needed then put in). and plug in charger again for an hour, the light will actually be orange even though it was green before you turned it off.
and your screen should load the charging icon for when its turned off.
3.once it is green, turn on the phone. (put in pins or passwords etc) leave the phone on for a minute, then fully turn off again.
4. charge again for an hour and your charging indicator should be green and your battery is calibrated.!
Click to expand...
Click to collapse
for step 1 is it after 8 hours i disconnect the phone even though it will be green light earlier???

[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).
Click to expand...
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...
Click to expand...
Click to collapse
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

[Q] Battery Issues

Hi everyone,
I've had my Sensation for about 14 months now and for the past month I've been having battery issues. Primarily, it's very quick to lose charge and will lose charge even while charging from the wall. First I bought a replacement battery but was still having the same issues. I've started using Better Battery Stats and Battery Monitor Widget but I don't have anything out of the ordinary running. In fact, not a lot is running at all. BMW has allowed me to see how the charging is going though which has been nice. During this period I have used Elegancia, Bruce's CM10, and am currently on ParanoidAndroid. All experienced the same issues.
Last night, for example, I put the phone on the charger at 16 percent. It charged up to 22 and then started the downward slide to death and I ended up waking up 35 minutes late.
Where do I go from here so I don't have to constantly be paranoid about my battery levels?

Sounds like you might need another battery. In better battery starts did you notice any unusual wake locks? This could drain a battery. But since it looses charge even when charging I'd think it was the battery. I personally was experiencing some battery issues myself finally I broke down and got a mugen 3800mah battery from mugen. It was expensive but really worth it for Me.with really heavy and constant use I get 20 hours out of my battery, with normal use I get two days. I'm also running paranoid Android rom. For me the big battery solved my issues. Only one draw back, it does make your phone thicker. New back included with battery. This didn't bother me much because of the excellent battery life I receive. Now I finally don't. Worry about battery. However it's expensive at about 95 dollars. But I was so fed up with poor battery life it was worth it for me. You have to be careful when buying inexpensive batteries because there are a lot of fakes going around. And the mah is not really what it says it is on the packages. You can test the battery and make sure it is what it's advertised to be. If you don't want to go with that large of a battery you can also try anker extended battery. It's a lot less expensive and is a good battery. I personally needed more juice so I went with the big battery. I know you said you replaced the battery but sometimes the bargain batteries go bad quickly. It makes me suspicious of the battery because it's even dropping while charging. This is strange. If you ruled out any apps or wake locks that might be draining the battery I would buy a good reliable battery. The draining while charging is a red flag. I'd say the battery is going bad. I don't at all regret my purchase of the big battery. It for me, solved my issues. I do Hope this helps and I wish you the best. Hopefully you will get your issue resolved soon.
Sent from my HTC Sensation using xda premium

its either an issue with the battery or the battery reporting.
Only thing you can really try is to charge it up to 100%, wipe battery stats in recovery, then let it empty totally and charge it up again, see how its behaving. There is a chance that its the reporting that is off.
otherwise this looks like the battery is on its way out im afraid

realsis said:
Sounds like you might need another battery. In better battery starts did you notice any unusual wake locks? This could drain a battery. But since it looses charge even when charging I'd think it was the battery. I personally was experiencing some battery issues myself finally I broke down and got a mugen 3800mah battery from mugen. It was expensive but really worth it for Me.with really heavy and constant use I get 20 hours out of my battery, with normal use I get two days. I'm also running paranoid Android rom. For me the big battery solved my issues. Only one draw back, it does make your phone thicker. New back included with battery. This didn't bother me much because of the excellent battery life I receive. Now I finally don't. Worry about battery. However it's expensive at about 95 dollars. But I was so fed up with poor battery life it was worth it for me. You have to be careful when buying inexpensive batteries because there are a lot of fakes going around. And the mah is not really what it says it is on the packages. You can test the battery and make sure it is what it's advertised to be. If you don't want to go with that large of a battery you can also try anker extended battery. It's a lot less expensive and is a good battery. I personally needed more juice so I went with the big battery. I know you said you replaced the battery but sometimes the bargain batteries go bad quickly. It makes me suspicious of the battery because it's even dropping while charging. This is strange. If you ruled out any apps or wake locks that might be draining the battery I would buy a good reliable battery. The draining while charging is a red flag. I'd say the battery is going bad. I don't at all regret my purchase of the big battery. It for me, solved my issues. I do Hope this helps and I wish you the best. Hopefully you will get your issue resolved soon.
Sent from my HTC Sensation using xda premium
Click to expand...
Click to collapse
Argh. I hope it's not the replacement battery too. I got a replacement HTC battery. The problem I'm having getting anything useful from Better Battery Stats is that rarely am I off the charger. In the settings it says I can log while charging but it may mess up the stats so I've shied away from doing that. I'm not against getting a bigger, better battery but I would hate to do that and have it actually be something else hardware-wise where I would need to get rid of my phone.
Hawke84 said:
its either an issue with the battery or the battery reporting.
Only thing you can really try is to charge it up to 100%, wipe battery stats in recovery, then let it empty totally and charge it up again, see how its behaving. There is a chance that its the reporting that is off.
otherwise this looks like the battery is on its way out im afraid
Click to expand...
Click to collapse
I'll give this a try if I can get it back up to 100%. Is the reporting in Recovery always correct? The battery never has issues charging while it's in Recovery mode. If that's the case then I'll charge it to 100% in recovery and then wipe and start fresh.
Thanks

I don't think it's the battery. This phones have errors in battery readings. I feel your pain man. Mine is from T-Mobile (Sensation 4G) and it discharges if I use it even at lowest brightness when it's charging too.
If I reboot, I get the battery boost. I have tried EVERYTHING I read here and nothing worked. I even have 4 batteries. All of them in good condition.
I even tried three times discharging it fully and without turning it on, charge it in the night and when I wake up 7-8 hours later, it's still charging. I tried wiping stats, changing ROMs, changing the usb cable and the charger. Everything... I believe it's a hardware issue. (Thank HTC for that) I'm not buying another HTC when I have to upgrade.

KerberosKomondor said:
I'll give this a try if I can get it back up to 100%. Is the reporting in Recovery always correct? The battery never has issues charging while it's in Recovery mode. If that's the case then I'll charge it to 100% in recovery and then wipe and start fresh.
Click to expand...
Click to collapse
Interesting...so if you were to charge the phone in recoery how long do you think it would take to get to 100%?
I would definitely do what you said, charge in recovery then wipe battery stats and go from there.
If you're interested in having something to compare to, it takes my phone about 3 hours to charge to 100% (by the way I'm using an Anker extended capacity battery), with a peak current usually around 800 - 900 mA. Fully charged I have somewhere around 4100 mV. If you haven't already, I'd suggest adding a Battery Monitor widget with mA, mV, and % available being displayed and it will be pretty easy to get an idea what's going on.

KCuadrado said:
I don't think it's the battery. This phones have errors in battery readings. I feel your pain man. Mine is from T-Mobile (Sensation 4G) and it discharges if I use it even at lowest brightness when it's charging too.
If I reboot, I get the battery boost. I have tried EVERYTHING I read here and nothing worked. I even have 4 batteries. All of them in good condition.
I even tried three times discharging it fully and without turning it on, charge it in the night and when I wake up 7-8 hours later, it's still charging. I tried wiping stats, changing ROMs, changing the usb cable and the charger. Everything... I believe it's a hardware issue. (Thank HTC for that) I'm not buying another HTC when I have to upgrade.
Click to expand...
Click to collapse
I'm leaning towards hardware issue too. That's why I figured I'd post and see if there was anything else that I can try. It's also why I don't really want to buy an expensive battery since who knows what it'll fit next. I know what you mean about the reboot battery boost. You can almost gamble and bet on percentages when you reboot. I've seen 50% swings before.
goatee84 said:
Interesting...so if you were to charge the phone in recoery how long do you think it would take to get to 100%?
I would definitely do what you said, charge in recovery then wipe battery stats and go from there.
If you're interested in having something to compare to, it takes my phone about 3 hours to charge to 100% (by the way I'm using an Anker extended capacity battery), with a peak current usually around 800 - 900 mA. Fully charged I have somewhere around 4100 mV. If you haven't already, I'd suggest adding a Battery Monitor widget with mA, mV, and % available being displayed and it will be pretty easy to get an idea what's going on.
Click to expand...
Click to collapse
In recovery I would guess that it wont take very long to charge to full. I have battery monitor widget installed and while plugged into the wall with my 1.0A charger, it will typically pull 100-200mA but sometimes it'll spike to 700-900mA. No rhyme or reason. When idling and functioning properly, without a charger plugged in it drops 9-100mA. Sometimes though while charging it'll sit at negative 100-200mA.

HA! Just rebooted my phone and it went from 68% to 100%. So I rebooted into recovery, it also said full so I wiped stats.

KerberosKomondor said:
In recovery I would guess that it wont take very long to charge to full. I have battery monitor widget installed and while plugged into the wall with my 1.0A charger, it will typically pull 100-200mA but sometimes it'll spike to 700-900mA. No rhyme or reason. When idling and functioning properly, without a charger plugged in it drops 9-100mA. Sometimes though while charging it'll sit at negative 100-200mA.
Click to expand...
Click to collapse
I normally get 2 to 3 mA drain with the phone sleeping. When charging you may not necessarily get close to the 1 A current delivery of the charger straight away, typically it will ramp up over time and reach peak charge current as it gets closer to 100%. Once at 100% it wants to just "trickle" charge to maintain 100% charge until the charger is disconnected, so any wakelocks etc. that cause a current drain during that "trickle" charging will actually decrease battery charge until the charger ramps up to compensate for the drain. Random spikes in charging current would suggest a hardware problem where the electronics are struggling to properly govern the charging process, as would a large negative current drain with the charger plugged in. Silly question but what's the actual plug connection to your phone like? Nice and solid, pins all OK?

Fast battery drain from an year old device. Is there any way to slow charging speed?

So my 4a has been having fast battery drain since few months now. I remember it having very good battery life initially. However now it drains battery very fast.
This is also surprising since I keep brightness low due to me being sensitive to it.. and also keep the phone charged upto 80% capacity only as I read that it prolongs battery life.
One thing I could note is that the phone drains slower in the 80 - 100 % range if the phone gets fully charged occasionally.
Hence I have been suspecting the 'rapid' charging which is enabled by default on stock charger to be one cause.
Is there some way to enable slower charging like what happens in case of 'Adaptive charging' post 80% capacity? I hope that will lead to lesser wearing down of battery.

Don't use a compatible cable/charger and it'll change slowly. I don't think any PC I've connected to can do rapid charging, for example, and the cheap USB chargers I have definitely can't do it, only the one that came with the phone can do it.

purezen said:
So my 4a has been having fast battery drain since few months now. I remember it having very good battery life initially. However now it drains battery very fast.
This is also surprising since I keep brightness low due to me being sensitive to it.. and also keep the phone charged upto 80% capacity only as I read that it prolongs battery life.
One thing I could note is that the phone drains slower in the 80 - 100 % range if the phone gets fully charged occasionally.
Hence I have been suspecting the 'rapid' charging which is enabled by default on stock charger to be one cause.
Is there some way to enable slower charging like what happens in case of 'Adaptive charging' post 80% capacity? I hope that will lead to lesser wearing down of battery.
Click to expand...
Click to collapse
It's more likely an app that drain your battery in background than your battery dying already. Quick charge and adaptive charge are made to not harm the battery.
Are you rooted? If yes, install Franco kernel manager app from playstore.
In first page you'll see your battery life estimation (from system) and clicking on live monitor go-to the processes tab.
Just like top cmd on Linux you'll see which process is active and how much cpu it use
For me as an exemple i realized that when I'm using YouTube music. The AdAway app goes crazy and drain my battery. And its something that's not shown on settings/battety tab.

Fast charging stresses the battery more than slow charging. That said I almost always fast charge. I expect 1-2 years of battery life on my N10+'s though.
Charging past 80% or discharging below 30% stresses the battery; Li's like frequent midrange power cycling.
Don't start charging below 72F, 82F or higher is best. High temp cut off is about 102F.
Never attempt to charge a battery colder than 40F!!!
Erratic fast charging is a sign of battery failure.
A rapid decline in capacity is another sign of a battery failure.
Any rear cover bulging ie battery swelling is a failure, replace asap.
Once a battery is below 80% of it's original capacity it's degraded and has reached the end of its service life, replace it.
Degraded Li's are more likely to fail which can easily destroy the phone.
If the phone is used heavily or is 2-3 years old, probably time to replace the battery. Just do it.
On most phones the cost is low.

a1291762 said:
Don't use a compatible cable/charger and it'll change slowly. I don't think any PC I've connected to can do rapid charging, for example, and the cheap USB chargers I have definitely can't do it, only the one that came with the phone can do it.
Click to expand...
Click to collapse
Mine does rapid one only Thankfully connecting a usb to a socket board does non-rapid

Dead-neM said:
It's more likely an app that drain your battery in background than your battery dying already. Quick charge and adaptive charge are made to not harm the battery.
Are you rooted? If yes, install Franco kernel manager app from playstore.
In first page you'll see your battery life estimation (from system) and clicking on live monitor go-to the processes tab.
Just like top cmd on Linux you'll see which process is active and how much cpu it use
For me as an exemple i realized that when I'm using YouTube music. The AdAway app goes crazy and drain my battery. And its something that's not shown on settings/battety tab.
Click to expand...
Click to collapse
Thanks for the response
Frankly don't have that much usage of my phone. Will give sometime to observing with non rapid charging. Will give this a try if that still persists.

blackhawk said:
Fast charging stresses the battery more than slow charging. That said I almost always fast charge. I expect 1-2 years of battery life on my N10+'s though.
Charging past 80% or discharging below 30% stresses the battery; Li's like frequent midrange power cycling.
Don't start charging below 72F, 82F or higher is best. High temp cut off is about 102F.
Never attempt to charge a battery colder than 40F!!!
Erratic fast charging is a sign of battery failure.
A rapid decline in capacity is another sign of a battery failure.
Any rear cover bulging ie battery swelling is a failure, replace asap.
Once a battery is below 80% of it's original capacity it's degraded and has reached the end of its service life, replace it.
Degraded Li's are more likely to fail which can easily destroy the phone.
If the phone is used heavily or is 2-3 years old, probably time to replace the battery. Just do it.
On most phones the cost is low.
Click to expand...
Click to collapse
Thanks for the response. That was insightful

UPDATE:
Started slow-er charging since few days now.. and I really feel that the battery performance has considerably improved
Also update to Android 12 since few days as well so not sure if that has a role to play though I don't think so

purezen said:
UPDATE:
Started slow-er charging since few days now.. and I really feel that the battery performance has considerably improved
Also update to Android 12 since few days as well so not sure if that has a role to play though I don't think so
Click to expand...
Click to collapse
If it seems to work better... I don't see any difference on my N10+'s though. Run times are the same slow/fast charging.
Keep a close eye on it as erratic fast charging is a sign of battery failure... I have seen that