Hi,for some time I have a problem with the battery, it has gone from a duration of 2 days with 6/7 hours of sot to 1 day with 2/4 hours of sot.
I tried to install various roms, I followed some guides to "erase" the battery memory but nothing had any effect. I installed accubattery and as battery capacity gives 1800mah on 3500mah.
So I decided to buy a brand new original battery, but this too does not last long and on accu battery I have the same results as the old one.
I also resetted the phone by deleting everything in twrp (data, system, internal etc) and reinstalled another rom but the duration has not changed and after 2-3 days of use it started to turn off at 20/30% without warning.
Someone can help me?I'm out of ideas
This Is a screenshot of batteri charge and discharge.As you can see from 100% to 39%only 820mah and It shut down at 39%
https://ibb.co/brgMdq5
Thanks
Related
Hey guys! I need some experts help! Me and some friends bought 6 batteries (of the same type) for our defy (heres the link: http://www.ebay.com/itm/2300mAh-BF5X-Battery-Motorola-Defy-MB525-ME525-MB52-/250879839250), which are preformance-wise really good (they last 2 days with heavy use easily), BUT the phone recognizes it only as 500mah (according to /sys/class/power_supply/battery/uevent). This means the battery drains to 1% in 5-6 hours, but can last 1.5 days on 1%. Tried calibration with battery calibration (from market), cwm, and even tried 'hard' calibration (fully charge phone, switch off, pull out battery, plug in charger, put in battery again), nothing helped. Can somebody point me to the location where the battery information is stored in the system, so we could write an app to overwrite battery readings according to the voltage (with which the percentage can be calculated pretty accurately, max: 4.2V, min: 3.3-3.4V)? Any help would be greatly appreciated! Thx in advance!
anyone help please?
Did you try clearing the baterry stats?
-Sent from a Galaxy far far away
"tried calibration with cwm". yes, tried wiping stats.
i checked your link on ebay and it says
> A temporary short capacity of new battery will be resulted from not used for a long time, it is normal, the total capacity will be reinstated via used for 3-5 times.
> When first get the battery, please use it until it is nearly power off, but not absolutely, then charge for 10 hours, then do this for the first three times. After you do this three times , when you use it out again, it only needs about 5 hours for normal charging.
Click to expand...
Click to collapse
from what i understand from the poorly written instructions that seems somewhat like english, it seems you have to charge and discharge 3-5 times (without wiping stats)?? but i dont really know...
I have tested my battery and have received some weird results, and these are consistent and happen with a reproduction rate of 100% (for me, at least)
If I let my screen stay on via Google Navigation with GPS, WiFi, Bluetooth and full brightness, I get about 2 hours and 20 minutes of continual screen-on time before the battery dies, from 100% 4200mv
If I delete /data/system/batterystats.bin once I get to 100% 4200mv battery, and do the exact same procedure as said above, I get 4 hours and 10 minutes of battery life (about double!)
Now afterwards I let the battery drain from step 2, and charge back to 100% (a supposedly calibrated battery), and do the same procedure, I got 2 hours and 10 minutes of screen-on time before the battery went dead.
I then again deleted batterystats.bin at 100% battery, unplugged and did the exact same procedure and it lasted again a little over 4 hours of screen-on time.
Why am I seeing such great battery life when batterystats.bin has been deleted, as opposed to when I supposedly have a newly calibrated batterystats.bin file?
Any ideas?
You might ask people in this thread:
http://forum.xda-developers.com/showthread.php?t=1423054
There are several knowledgeable users and developers who are discussing this kind of calibration stuffs (related to your issue).
Hi I have: HTC Wildfire with CyanogenMod 7.2.0-RC1
In about the past 2 days my battery life has dropped considerably with the phone not lasting more then 12 hours, as opposed to the previous life of 2-3 days.
I charged it too 100% last night and this morning when I checked it it was at 20%
I have not installed any new apps, my screen usually runs on low brightness and the data connection only running on 2g/Edge and I have changed no settings lately.
I tried a battery stats wipe, no change.
I remember having that problem just after I flashed a new recovery.
It was about 80% before I sleep And when I wake up I find it 55%
I installed Sympfinity kernel and it really improved battery life.
now only 10% (sometimes less) are lost through the night.
Try Sympfinity kernel.
Sent from my HTC Wildfire using Tapatalk 2
I Flashed CM7.2 RC2 it seems to have fixed the problem.
tpex said:
Hi I have: HTC Wildfire with CyanogenMod 7.2.0-RC1
In about the past 2 days my battery life has dropped considerably with the phone not lasting more then 12 hours, as opposed to the previous life of 2-3 days.
I charged it too 100% last night and this morning when I checked it it was at 20%
I have not installed any new apps, my screen usually runs on low brightness and the data connection only running on 2g/Edge and I have changed no settings lately.
I tried a battery stats wipe, no change.
Click to expand...
Click to collapse
I advise you to install battery calibration from play store, sometimes after flashing a new rom, battery may be miss-read
tip
the battery life is also affected depending on the time you have automatic update on your phone because if you have updated very often it spends considerably battery not in use so the phone .. hechale a look at this and help us a lot of your battery greetings
Welll i used to have a similar problem on my wildfire,so i downloaded power max and used it on standard mode and used Go power master with autoswtching and other stuff...just before exchanging it for a Nexus, i had the battery to last around 40 hours with 5 hours of browsing, 3 hours of listening to music and 2 hours of gaming with heavy use of whatsapp and texting and 30-40 minutes of calling...previously my battery use to last only 10 hours...hope this will help you...you can also go up to ebay and buy an extended battery for just Rs.960 which is 3000mah...cheaper than the original smaller battery....link to the extended battery http://www.ebay.in/itm/3000MAh-Exte...4-HTC-Wildfire-G8-/140533335447#ht_1453wt_907
Greetings,
I've had my Tab S 10.5 for just over 10 months now. My battery life drops 20% on standby over the course of a few hours. I was watching a video on YouTube and it dropped by 25% over 15 minutes. So, I ordered a new battery and replaced it fine. However, the same type of things persist. Today I watched 15 minutes of YouTube and the battery dropped 27% (to 12%). When I powered it back on it was 55%. So, I cleared the cache via recovery mode as other users have suggested and I'm waiting for it to charge to see if that helped. However, it's only charged 3% in an hour. Obviously something is going on. I want to say my battery life took a dive with Lollipop, but I can't say conclusively. I did downgrade to KitKat and the problems still persisted so I upgraded again figuring it didn't make a difference. Then I replaced the battery yesterday. I'm not sure Samsung will take it back but I could replace the old battery (depends if they can tell I opened the case). Anyone have any advice? It seems like the battery % isn't being correctly read by the device so I was hoping wiping the cache would do it. Thanks for any help.
Recalibration?
So I updated my phone tonight and after it used 30% in an hour or so. All I was doing was using FB on it. Prior I played PAD for 15 minutes and it hardly used 5%. I've wiped cache, cleared app cache, and now I'm working on a full discharge from 100%. The battery is brand new and it was getting better life prior to the upgrade. So much for 3x better battery I guess?
After clearing caches I left it idle ofer night. It used 13% for 20 minutes of screen time. and then it used 3% idle over the 5 hours I slept. Still seems a bit high on usage for screen time but idle is great.
So I discharged it completely and now its losing power fast again. The battery was 100% unplugged it and turned it on and its 97%. So I turned it back off and checked it and its also showing 97%. Charge it back to 100%, turn it on, its on 100% but loses 1% in a second. Plugged it in while onand it took like 3 minutes to charge that last 1%/ No idea why. The battery is brand new and got 2 or 3 days on idle before, now it reports 20 hours. what happened to that 3x better battery? What else can I do to sync the battery properly? I also noticed 100% is not 100% until the phone tells me battery is charged.
Again this battery is brand new and my life with 5.1.1 was pretty good.
I've been having poor battery calibrations in EPH7, though my battery is still what came with the phone.
There are days I can get to about 5? left before the phone dies, and there are days it dies at 15?..
Already tried charging all the way till full while the phone was off, still the same. It's random, but I just generally expect the phone to turn off as I come close to 15?.
boofman said:
I've been having poor battery calibrations in EPH7, though my battery is still what came with the phone.
There are days I can get to about 5? left before the phone dies, and there are days it dies at 15?..
Already tried charging all the way till full while the phone was off, still the same. It's random, but I just generally expect the phone to turn off as I come close to 15?.
Click to expand...
Click to collapse
That sounds like a bad battery. I can get my phone to drain down to 0% before it dies, but the battery usage can be erratic.
After some testingm the first 5% (95-100%) does down fast but after that it can go a pretty good while. Not sure why. I left the screen on with max brightness, turned on NFC/wifi/bluetooth and just left tons of apps running and it took 4-5 hours to get the battery down to 20%. the life is in fact great just not properly synced. No root makes it more of a pain to calibrate.
So I charged the battery offline and it got to 100%. I switched it on and it shows 97%. What the hell has marshmallow done to my note?
last post. If I charge the phone formt he OS it reaches 100% seemingly properly and doesn't discharge quickly. Not sure what marshmallow screwed up.
I had the same issue with my battery draining quickly after the upgrade. I backed up all of my data and then performed a master rest of the phone and then went into recovery and cleared cache as well. Once it booted back up I reloaded all of my apps and reconfigured all my accounts and my battery acts normal once again. It was a pain in the ass to do all of that but it did work for me so hopefully it works for you too.