Database Develop

[Q] Unreliable Battery!

Hi
I have noticed when I soft reset my phone the battery drops anywere from 5% up to about 70%! It varies from rom to rom. If i plug it in and softreset it a couple of times the battery goes up to around what it use to be. If it makes a difference I flash roms alot and don't usually install to many applications.
Is this normal at all or is my battery faulty? It's only about 8 months old.
Any ideas? Tips I could try?
Thanks
Imran

you know, i have the same problem when installing, touch x legendary rom, battery is about 96,96% but when i install that rom, battery drops down to 8,7%, i just plug in power for second, and battery jumps to 98%, and then all working fine...

The way phones and other devices display their state of charge (%) isn't always accurate, hence why it jumps back up 5% after plugging it in. I don't think your battery is unreliable, it's just reporting the wrong percent of charge...

I see. Mine is more like 50% so I guess mine is just really wrong! any ideas for fixing this?
Also i have the typical xperia x1 problem were it thinks the headphones are plugged in for the last 4 days. I have plugging and unplugging the headphones in heaps but it doesn't seem to work
Thanks

I have the same problem.
Phone has one year and 8 months.
Wine phone or battery?

I just got exact problem this morning
I agree with comment above, I think it just battery indicator not accurately represented battery state.
I also noticed the problem happened when I get my phone idle for a while

I was just going to start a new thread about this kind of thing. My phone's original battery has run out at anywhere between 0 and 30%... it tends to go for a couple of days if I don't use the phone much. I've tried recalibration and it doesn't really help. I thought that was bad, but I just bought a backup battery and it's even worse... yesterday it went from 100 to 50% over half a day on standby, then I used it for about ten minutes and it just went off! At 50%!
I was only expecting rubbish life from the cheap battery but at least report the charge properly so I have a chance! Old phones could always do it... why can't one that cost hundreds of pounds when it was new?
I take it there's nothing you can really do?

[Q] Sudden decrease in battery life

Hello guys.
I know you're all tired of people QQing about battery life, but I've yet to find a thread that addresses my issue.
Anyways, I'm running cog 4.2.2, and recently I've seen a drastic decrease in battery life with no change in the way i use my phone, no new apps, and no new roms. I've calibrated my battery about 5 times now, and the same for rebuilding my batterystats.bin. I used to be able to make it through a full day without charging with battery to spare, now it dies sometime in the evening even after bumping the battery charge several times. I charge it every chance I get (between classes, when I'm adding files to it via usb, etc) and it STILL dies. at one point, I observed that my battery dropped 15% in 30 minutes. I used os monitor to check if any apps were running using a lot of cpu, but nothing uses more than about 1% (most things usually show 0%) except the operating system itself, which is at about 7%. Should I just cave and buy a new battery from amazon, or is there something else I can try, short of flashing a different rom?

iamtheculprit said:
Should I just cave and buy a new battery from amazon, or is there something else I can try, short of flashing a different rom?
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Yes 10 char

maybe your batterystats are ****ed up? i deleted the file once before with sgs tools and then wiped dalvik cache and it for some reason seemed to fix my battery issues, and sped up my system somewhat

Don't bump charge so much. Lithium ion batteries aren't designed to go to 100 so often and over charging can result in decrease longevity of the battery itself. The phone has a feature to prevent over charging. When it's on the charger the second it reaches 100 it will stop charging and let the battery trickle down to 95 or so and starts that cycle over again. Too much bump charging can actually damage the battery.
After deleting the batterystats.bin do you let it go through a few full drain and charge cycles before making a judgement on the battery life?

studacris said:
Don't bump charge so much. Lithium ion batteries aren't designed to go to 100 so often and over charging can result in decrease longevity of the battery itself.
After deleting the batterystats.bin do you let it go through a few full drain and charge cycles before making a judgement on the battery life?
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I realize that, and I can't make it through the day without charging it. I only charge it when it's at less than 10% though.
Also, I have deleted the batterystats.bin and let it go through a full drain and several charge cycles. It didn't help at all.
Also it's worth noting that today I left it on the charger powered off after it reached 100% while powered on. I left it plugged in for three hours, and it never indicated 100% while powered down. It stayed at about 90% full, more or less.

replacement oem batteries are relatively cheap, cause it sounds like you got a lemon. Sorry man.

studacris said:
Replacement batteries are relatively cheap, sounds like you got a lemon. Sorry man.
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For 8 bucks, it's worth a shot. The most perplexing thing is that it won't max out while the phone is shut off. Tell-tale sign of effed up battery?

iamtheculprit said:
For 8 bucks, it's worth a shot. The most perplexing thing is that it won't max out while the phone is shut off. Tell-tale sign of effed up battery?
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Yeah that would raise a big red flag for me.
Try a different rom see if that offers any better battery life, I doubt it but It's completely free to try. Something to mess with while you wait for a replacement. And if it turns out to work then you will have 2 batteries.

simbill said:
maybe your batterystats are ****ed up? i deleted the file once before with sgs tools and then wiped dalvik cache and it for some reason seemed to fix my battery issues, and sped up my system somewhat
Click to expand...
Click to collapse
going to try wiping the dalvik cache before I order the battery. Wiped batterystats.bin while I was at it. Maybe it'll help.

I got about 11-12 hours today, but I did nothing but text really. This is after full charge, deleting dal cache, and deleting batterystats.bin and then restarting. I mean I recieved a few pics but I really didn't do anything on my phone today other than that. That's just pathetic, since before I was getting through a full day (8:30-2am roughly) with battery to spare and I was using it a lot more heavily than I did today.

[Q] CM (and others?) battery meter complete screw-up

My battery never charges above ~76% when plugged in. After rebooting however, it is very much at 100% and lasts for a good amount of time. This is not necessarily a question, but I wonder if others are experiencing this too and if there is a fix? Read below.
I noticed that my battery life got very bad after installing custom roms. I also found out that this happened because I sometimes kept the phone plugged in while flashing, something that totally screws up the battery reading. So, I followed this guide to calibrate my battery and it worked.
Now, whenever the phone is plugged in it NEVER goes to 100% when charging. Maybe 80% if leaving it for a while (10 hours overnight). I'm worried about frying the battery. Is there a fix?

It is only a matter of presentation. It actually doesn't mean your batt is broken. Plug it and charge it overnight. Then discharge only for few percent and plug it back in. It should go to 100%.
Sent from my HTC Legend

Thanks, I'll give it a try.
What I'm concerned about is if the phone "thinks" the battery isn't recharged and keeps squeezing juice into it when in fact it is full (which a reboot will show)? That's not good for the battery. It should go into trickle charge after reaching 100%..

The process described in the desire forum is also known as formatting the battery. In fact most of battery manufacturers (lithium battery manufacturers) recommend doing this in a slightly different way:
Before first use:
1.) Before powering the device on, plug it in and let it charge until the LED is green (fully charged)
2.) Then take the battery out of the device and wait an hour (to make sure all the chemical processes in the battery are as idle as possible)
3.) Then plug it back in, while still off and let it charge untill green LED
4.) use the device....
You can practice this slightly modified with first step being:
Discharge the battery (by normal use)until only few percent are left (1 - 5 % are OK)
I've done these steps with my Mugen extended battery and I was getting around 4 - 5 days on Legend, now I'm getting 2 - 3 days on Desire S, but the ROM isn't very optimized yet, I believe it will be better in time...

Just one thing... Why is this in Development!?

No Idea.....
can mods move this?

BlaY0 said:
It is only a matter of presentation. It actually doesn't mean your batt is broken. Plug it and charge it overnight. Then discharge only for few percent and plug it back in. It should go to 100%.
Sent from my HTC Legend
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sz1a did this solve your problem? Have the same problem with every firmware i've tried....

peddalion said:
sz1a did this solve your problem? Have the same problem with every firmware i've tried....
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Definitely did not solve it but at least the battery performance is ok. It just stays at 78% for a few hours drops from there. Very weird but as long as the battery doesn't get broken I guess it's ok.

Do you have some 3rd party battery installed in your Legend? I have one 1,5 Ah in mine and it is acting the same way. It doesn't bother me too much coz it was cheap... it lasts 48 hrs with data always on and moderate usage. I noticed this that when I charge it overnight and it reaches 80%, unplugging it stays at 80% for several hrs and just after it starts dropping if I plug it again, meter reaches 100%. It's weird but as I said I can live with that

I've got exactly the same issue with stock 2.2 ROM. I've never rooted or CM my phone; I was wondering if CM would do it, but doesn't look like it.
android forums /htc-legend/265545-battery-doesnt-fully-charge.html
(sorry, I can't post links; maybe an admin can fix the link for me?
This seems to indicate it's a phone hardware fault and requires a new Legend to fix! My big worry is, as stated, that the charging light never goes green; therefore is pumping lots of power into a potentially full battery.

Erroneous Battery Indicator

Something is wrong with the way the phone indicates the battery charge. For example, when I play on my Milestone and the battery is getting close to 20%, after a few minutes it drops to 15% in a few minutes then immediately to 5% and 1%. Also I noticed that even though it indicates it only has 1% battery left, it still is able to run for 20-30 more minutes (perhaps less) with the screen on. Also putting it to charge right after it indicates 5-1% boosts it up instantly to 20% or sometimes even 60% which is weird... I've tried multiple times to reset the battery stats (which doesn't do anything) or I've followed another guide that specifies to charge the battery completely, restart then pull out the battery once the Motorola logo shows up with the charging cable still plugged in. That worked before and the battery would return somewhat to normal, but now that doesn't work anymore.
So is there anything I can do to fix this? I'm using Kabladan's CyanogenMOD 7.2.4f (if anyone has other suggestions for a better ROM for this phone please do let me know =D )

I have the same problem with my stone, and I'm pretty sure it's the battery's fault and the phone and rom has nothing to do with it.
My guess is one or more cells are worned out in the battery so it doesn't store any capacity but it still reports full capacity to the phone.

It could be that it's the battery's fault, but in my case it's a bit the reverse of yours, a lot less battery is reported that it should.
Also, how is CM 9.1.0d working out for you? Does it have any improvements over 7.2.4f? =)
Too bad Kabladan abandoned all progress on his Milestone ROMs, they were quite useful for this deadbeat unsupported phone.

I'm satisfied with it.
I do the "heavier" tasks on my N7, so I use my MS mainly for internet thethering, calling, etc. After some days it gets a bit laggy (it can be within 3-4 days or 2-3 weeks, depending on usage), but after a restart it gets fast again, so it is not a big deal. I'm using CM9 because I use a few apps that requires at least ICS and basically it is more user-friendly than GB.
I recommend you to try it, test the different settings (zRam/swap,etc) and see if it suits your needs.

charging battery issues

Hi guys
My Redmi has experiencing a bit odd behaviour every time I charge his battery
I always do full charging cycles, from 0 to 100%, and than use it till it full drains.
I usually charge it with the phone off
The last couple of times a strange thing happened: I fully charge it from 0, with the phone off, but when I turn the phone on the battery level shows something in the 70% level, the last time it was 77% only., This time I connected it back to the charger, and it went to 100%
I already installed a battery calibrator, but this keeps happening now
I use the original Xiaomi charger, or a Sony charger.
My Redmi is running the stock Marshmallow ROM - that's another funny thing, my phone simply has no updates to Noughat or ahead, I'm in Portugal those updates should have already arrived
So, any suggestion from you?
Regards
Antonio

Most probably your device has fake MIUI vendor ROM. I am guessing this because there's no update you got on your phone.
Redmi 4X has been updated already to MIUI 10 based on nougat 7.1.2.
I would recommend you to backup your all data on phone and clean flash latest stable update and restore back everything.

metelhammer said:
Most probably your device has fake MIUI vendor ROM. I am guessing this because there's no update you got on your phone.
Redmi 4X has been updated already to MIUI 10 based on nougat 7.1.2.
I would recommend you to backup your all data on phone and clean flash latest stable update and restore back everything.
Click to expand...
Click to collapse
Thanks
I'm not very worried about using latest ROM's on my phone, the charging issue is the the thing that annoys me the most, I'll think about updating my phone if and when the other problem gets a solution.
Does anybody has a say on this matter?

You should try to keep your battery level above 50%. Lithium batteries need charge to keep their effectiveness.
Only do 0-100% maybe once a month. When you do, charge the phone when off to 100%. Boot phone, if it is below 100% at startup charge more until it reaches 100%, then restart. Continue this until you get stable 100% or consistently close to it.
Battery calibration apps are trash, don't even bother with it.

antonioduarte said:
Thanks
I'm not very worried about using latest ROM's on my phone, the charging issue is the the thing that annoys me the most, I'll think about updating my phone if and when the other problem gets a solution.
Does anybody has a say on this matter?
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Click to collapse
Okay here is my thought on your situation.
I charge my phone upto or around 90% to 95% and recharge it when it falls down to around 20% to 25%, due to my daily routine and usage i do get around 20% battery remaining almost everyday and in very rae case it goes below 10% till now for me it never went shutdown due to battery gone full zero.
I have Redmi 1S and i charge like this and i still do get around 2.5 hours of screen on time on it which is great considering it is 4 years old device. and i am still using same original battery came in the box which now shows some ageing signs since it has little bulge on it and sometimes phone shuts downs it self and after turning on it looses 10% to 15% of its charge.
it is recommended to keep some battery % left in phone for good battery health.
over time battery does loose its capacity.
you should consider changing how you charge your phone dont let it charge fully or let it drain fully. when battery drained out completely it does takes some time to hold some charge and when you charge you phone fully the battery does goes back to 99% and goes again to 100% since it is already on charge, this keep happening until stop charging which affects battery capacity and the charge it can hold.
i think in you case this issue happening due to the how you charge your phone.

metelhammer said:
Okay here is my thought on your situation.
I charge my phone upto or around 90% to 95% and recharge it when it falls down to around 20% to 25%, due to my daily routine and usage i do get around 20% battery remaining almost everyday and in very rae case it goes below 10% till now for me it never went shutdown due to battery gone full zero.
I have Redmi 1S and i charge like this and i still do get around 2.5 hours of screen on time on it which is great considering it is 4 years old device. and i am still using same original battery came in the box which now shows some ageing signs since it has little bulge on it and sometimes phone shuts downs it self and after turning on it looses 10% to 15% of its charge.
it is recommended to keep some battery % left in phone for good battery health.
over time battery does loose its capacity.
you should consider changing how you charge your phone dont let it charge fully or let it drain fully. when battery drained out completely it does takes some time to hold some charge and when you charge you phone fully the battery does goes back to 99% and goes again to 100% since it is already on charge, this keep happening until stop charging which affects battery capacity and the charge it can hold.
i think in you case this issue happening due to the how you charge your phone.
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Click to collapse
Thanks for your input
That doesn't make much sense to me since I charge it almost every time with the phone off, so once its 100% the charging process stops, and there's no way the battery should start draining because the phone is off - and even if it was on, it shouldn't loose 25% at once . If it was hardware problem, with the battery getting worn, I would never have the chance to drain it to zero slowly (it would shut down at 10% or so) or get an 100% charge level - and once I turn the phone on, he does go to 100% without any problem, so the battery seems to be ok
I do the same process with my 5 years old Sony Z1, once I charge it 100% I turn it off, and once I turn the phone on again, the battery charging level shows 100%, even If I do it a month after last charging. This old guy's battery is showing first signs of age, nowadays I get half the time I used to, but not that dramatic thing of not be able to do a phone call with 10% battery level.
So, same charger, same process, why my Xiaomi is behaving differently than he used to?
Why the charge level indicates 100% and once I turn the phone on, it shows 70 something %, and than charges without any hesitation to 100% ?

antonioduarte said:
Thanks for your input
That doesn't make much sense to me since I charge it almost every time with the phone off, so once its 100% the charging process stops, and there's no way the battery should start draining because the phone is off - and even if it was on, it shouldn't loose 25% at once . If it was hardware problem, with the battery getting worn, I would never have the chance to drain it to zero slowly (it would shut down at 10% or so) or get an 100% charge level - and once I turn the phone on, he does go to 100% without any problem, so the battery seems to be ok
I do the same process with my 5 years old Sony Z1, once I charge it 100% I turn it off, and once I turn the phone on again, the battery charging level shows 100%, even If I do it a month after last charging. This old guy's battery is showing first signs of age, nowadays I get half the time I used to, but not that dramatic thing of not be able to do a phone call with 10% battery level.
So, same charger, same process, why my Xiaomi is behaving differently than he used to?
Why the charge level indicates 100% and once I turn the phone on, it shows 70 something %, and than charges without any hesitation to 100% ?
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Click to collapse
The I am not sure why is that happening suddenly using same process.
I know you've said not interested in flashing ROM just yet but maybe consider changing ROM to official Global/china stable MIUI 8 or latest MIUI 10.
Possible reason for this hardware/battery or software issue.
Maybe get device checked at official xiaomi service center or contact them on customer care support. They should help you the best.

I'm trying to do the update route, but I'm not very confident on my tech skills - and the downloads are failing all the time.
What's the best/easiest way to update my 4x?

antonioduarte said:
I'm trying to do the update route, but I'm not very confident on my tech skills - and the downloads are failing all the time.
What's the best/easiest way to update my 4x?
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This post should help...
https://forum.xda-developers.com/showpost.php?p=78915706&postcount=2156

Xiaomi Warrior said:
This post should help...
https://forum.xda-developers.com/showpost.php?p=78915706&postcount=2156
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Click to collapse
Hi
Thanks for your reply, I ended up finding there's a MIUI tool available on playstore with ready updates for most phones, so I just downloaded the updated ROM directly to my phone and installed it.
It even kept all my apps and files, I did some backups in the process but never had to use them
Thank you all guys

have you tried
1) power off the phone and then after few seconds power on
2) charge using a different charger + different cable when your battery level drops below 50%, just to check if the phone still charges to 76-77% or if it charges to 100%.
3) if the above fails you need try factory reset or flash latest MIUI rom