Posted below is a screenshot in which you guys please can explain to me how in the world I am experiencing this....I go to school fully charged put my phone in my pocket, take It out 5 minutes later and it already lost 7% battery... seems android system and sometimes cell standby is doing something it is not supposed too. I HAVE tried factory resetting, wiping cache, I even use the app Force Doze and have GSAM battery Stats... Verizon S7 Rooted
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Hi
I have tried to get the battery to calibrate to 100% using the Battery Calibration 1.3 Nexus app.
I have thalamus 2.6.35.14 r2 kernel installed on my phone which is a requirement of the Calibration app.
I have done tried it twice and successful got it to achieve learning mode but it did fully charge, but the battery age was only reading to 94% when I restarted it in the app. I wanted to try it once more and power off instead of restarting it, but Learning mode will not activate any more.
Learning mode gets activated when the battery drains to 3201mV, but mine won't activate, it goes to 3190mV and my phone shuts down. I have tried to reset the battery stats, wipe delvik cache. I did a have modded ver of the kernel 2.6.35.14, so I installed the above kernel but no joy.
Does any one have any ideas? I am quite frustrated... Tried it about 5 times tonight to activate learning mode, but no joy....
I doubt there is need for a "battery calibration app".
Just charge it full and delete /data/system/batterystats.bin
and on next restart it will relearn and calibrate on the battery.
I have done that before, and delete the battery stats, every time I install a new kernel. Phone shutdowns at 8%. I want the phone to shutdown at 0-1%
I read somewhere that the 95% full charge on the Samsung Nexus is intentional. Li-ion batteries don't like to be charged at 100% and drained near 1%. The battery is kept at its optimum charging capacity at 95%.
I don't use battery calibrators
jbm76 said:
I have done that before, and delete the battery stats, every time I install a new kernel. Phone shutdowns at 8%. I want the phone to shutdown at 0-1%
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Click to collapse
You can't calibrate it perfectly.
No two batteries are the same.
If the voltage suddenly drops below a certain level the phone shuts done, even if it is only at 8%.
It is possible that with repeated use the display will get more accurate.
Hello I have the D337 and the battery drains too fast. For example before I go to sleep the phone is fully charged and in the morning the battery is at ~40%. I took it to service and they told me that there was a battery malfunction and they replaced it. But the problem exists even with new battery. I took it again to the service center and they told me that there is nothing wrong with the device everything is working perfect. But when I took back the phone the problem is here. I tried factory reset, the same. I tried force updating the rom with LG Update Tool and again the battery drains. I tried with simply stock LG rom without installing anything from my apps and again the battery drains. The graphic from battery (in settings) show that there is something keeping the phone is active. The graphic doesn't show any moment that the phone is idle (that happens even if I just leave the phone alone at night). The apps from battery menu are: 1) media 26% cell standby 23%, wifi 23%, phone idle 22%, android system 5%.
What is wrong with the device?
Is there anything that I can do to find out what is causing the problem?
Thanks in advance.
The problem was fixed after one more factory reset and formatting the sd. Maybe some old caches or old kk files were causing the problem.
Sent from my LG-D722 using XDA Free mobile app
i know there are a lot of other threads out there, but I haven't found one that talked about the problem deeper and has a fix. anyways, I'm experiencing a serious battery drain where I charge my phone up to 100, unplug it in the morning, go to school and leave it in my pocket for 2 hours, and it ends up being 70-80% and the screen on time isn't even on the battery stats because I've barely used my phone to have it show up. As im typing this on my phone, ive even lost 2%. Is anyone experiencing something similar and is there a fix for this? At 33% now, according to the battery usage, cell standby is at the top of the list with 10% and screen on time is 25 minutes . Thanks so much
Please post some screenshots of battery stats and someone may be able to help
Sent from my SM-G920V using Tapatalk
My phone is the same way. Even with the latest update that made cell standby way better where it sits at 1-3% my phone drains like crazy. It's been off the charger for 3 hours and 1 hour of screen on time and it's at 57%. They need a bigger battery in the s7.
Check to see if you have a VPN app installed, Firefox, Candy Crush (or other King app), or a weather app. Many use mdnsd that eats power. King apps send data all the time. And there may be some adware that you have that is eating power. Hope this helps...
Sent from my SM-G920V using Tapatalk
Battery Drain
I have had the same problem. With the earlier update I had the issue with (what I consider) excessive drain caused by cell phone standby. With the latest update cell phone standby has taken a back seat to Android System. Here is a screenshot from today. As you can see Android System has more than twice the percentage of anything else. I reset the phone a couple of days ago but that had absolutely no effect. Went to a local Verizon store to complain which naturally went nowhere.
brw9100 said:
I have had the same problem. With the earlier update I had the issue with (what I consider) excessive drain caused by cell phone standby. With the latest update cell phone standby has taken a back seat to Android System. Here is a screenshot from today. As you can see Android System has more than twice the percentage of anything else. I reset the phone a couple of days ago but that had absolutely no effect. Went to a local Verizon store to complain which naturally went nowhere.
Click to expand...
Click to collapse
I did a factory reset in recovery wiped cache twice and rebooted I have had much better battery. 20-30% higher when I leave work. I also kept WiFi calling turned off not sure if that was the drainer.
Evening XDA
My Nexus 5 is losing about 10% battery/hour and I am unable to identify the cause.
The battery software identifies the cause as "miscellaneous" and betterbatterystats shows no unusual activity.
I have ensured WiFi scanning is off, I have also rebooted into safe mode with airplane mode on and still the battery drains.
A factory reset has not cured the problem.
The top of the phone is a little warm indicating there is some activity taking place.
Also worth noting that the CPU states in betterbatterystats indicates the the phone is in deep sleep over 90% of the time.
This started 2 nights ago, I can see no app updates and have not updated the ROM in this time.
Any ideas or suggestion on what I could try next?
How old is your battery? A few days before my original battery crapped out, it was draining like crazy.
You could also try uninstalling Facebook, that helped battery peformance for me
I have a Huawei Mate 10 pro and have been using it for about 9 months.
I used to have amazing battery life with close to 8-9 hours of SOT ( and still had like 20% remaining never really went too low).
Recently I have been getting a battery drain of over 20% per night even if the phone is in doze mode.
I tried every method of finding out the battery drain and could not find it, assuming its a system bug i reset the phone but it did not fix anything.
I have wifi scanning and data always on turned off , so it disconnects mobile data and wifi if the phone is not being used.
I have just factory reset my phone and am posting screenshots of all my battery monitoring.
https://imgur.com/a/vfa4SGo
Please help me identify what is causing this battery drain.