I recently received a used nexus s 4g. I have installed slimbean and a custom kernel to enable voodoo sound. I have been having a weird battery issue. I can charge the phone overnight at which point the phone says it is fully charged. If I turn the phone off for a few hrs when I turn it back on the battery says it is only ~25% charged. This incorrect since I can still get full battery use out of the phone after this. I wouldn't worry but I am using setcpu and have profiles enabled and they are based on battery percentage. Any help is appreciated.
Slimbean ROM slim-4.2.2.build.8-OFFICIAL
Air Kernel
Have also tried matr1x kernel with same issue
Also tried a new battery.
joshritger said:
I recently received a used nexus s 4g. I have installed slimbean and a custom kernel to enable voodoo sound. I have been having a weird battery issue. I can charge the phone overnight at which point the phone says it is fully charged. If I turn the phone off for a few hrs when I turn it back on the battery says it is only ~25% charged. This incorrect since I can still get full battery use out of the phone after this. I wouldn't worry but I am using setcpu and have profiles enabled and they are based on battery percentage. Any help is appreciated.
Slimbean ROM slim-4.2.2.build.8-OFFICIAL
Air Kernel
Have also tried matr1x kernel with same issue
Also tried a new battery.
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Click to collapse
Hi There,
Probably there might have been a lot of battery stats accumilated in your phone try to wipe battery stats but first charge your phone to 100% then wipe Battery Stats in CWM. Aslo clean the terminals of the battery. And flash a custom kernel which maximizes battery life in Nexus S
Related
Hi,
My G2x has a strange problem that I have never had with any of my other Android phones. My battery % jumps as soon as I plug the phone in. Just now I plugged my phone in because I was at 20% , as soon as I plugged it in the battery jumped to 59% . I'm running Cyanogen Mod with the Faux overclocked kernel that uses the DS battery driver. Has anyone else experienced this? Which percentage is accurate? Are there any fixes or work around you know of?
Thanks everyone
ahronzombi said:
Hi,
My G2x has a strange problem that I have never had with any of my other Android phones. My battery % jumps as soon as I plug the phone in. Just now I plugged my phone in because I was at 20% , as soon as I plugged it in the battery jumped to 59% . I'm running Cyanogen Mod with the Faux overclocked kernel that uses the DS battery driver. Has anyone else experienced this? Which percentage is accurate? Are there any fixes or work around you know of?
Thanks everyone
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Yeah that happened to me. It's just the DS battery driver being screwy. If you unplug it it should go back down to 20 haha. unplug it and plug it back in a couple of times and it should display the correct percentage.
Thanks. that tip seems to work.
Try switching to a stock 2.3.3 ROM and see if you still have the issues
No problem. I switched to the regular battery driver because i like to look at the battery stats and the DS battery driver is too inacurate. Althought there may be better battery life with the DS drivers i havent noticed.
battery stats
When flashing new roms you have to wipe your battery stats and dalvick cache this can also happen if you get a different battery try wiping battery stats^_^
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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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.
Will flashing a ROM with less than 100% battery harm anything?
My wife's phone is still having issues with the NEWsense rom after getting a new battery from sprint. I flashed NEWsense while the phone was charging, at the time of the flash it was at roughly 45%. When charging, it will say it's charged to 100%, but after 3 hours of light use with wifi on, it's down to 27% already.
Is this something the battery calibration option in the NEWsense control panel would fix? Or is wiping battery stats the best way?
I could always charge to 100%, then re-flash the rom.
I guess I'm just lost as to why this keeps happening.
I flash ROMs with whatever battery I have left and never had an issue.
I don't wipe battery stats because each time the battery charges to full the stats are wiped anyways.
A new battery can take a few charge cycles to start performing like they should so just give it some time.
Sent from my HTC MyTouch 4G Slide running MikXE
bryank930 said:
Will flashing a ROM with less than 100% battery harm anything?
My wife's phone is still having issues with the NEWsense rom after getting a new battery from sprint. I flashed NEWsense while the phone was charging, at the time of the flash it was at roughly 45%. When charging, it will say it's charged to 100%, but after 3 hours of light use with wifi on, it's down to 27% already.
Is this something the battery calibration option in the NEWsense control panel would fix? Or is wiping battery stats the best way?
I could always charge to 100%, then re-flash the rom.
I guess I'm just lost as to why this keeps happening.
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Did you do a Full Wipe before Flashing the Rom? Did you Restore any Data? In WiFi do you have it set for WiFi-performance? What is your WiFi-sleep Policy set at? Oh BTW did Sprint send you a 1500mAh Battery, or the 1400mAh Battery?
Hello, I have a couple of questions:
1.- Does a lower DPI setting consumes more battery? I'm using a 120 DPI setting and my battery doesn't last more than 10 hours being active plus 5 more on deep sleep.
2.- As seen on the first question, why? I have been trying kernels fro gingerbread, tried the Perfect Peso one, Roq's kernel, Franco's kernel and stock CM7 kernel, I'm not getting more than 12 hours of life.
And I do follow the steps for changing the kernel:
1.- wait for 100% battery
2.- wipe battery stats
3.- unplug phone
4.- wait for 100% depletion
5.- plug charger and let the battery charge to 100%
What am I doing wrong? S:
Thanks in advance.
First question : How old is your battery
Second : Did you tried djnoxd's kernel from original development thread ?
Sent from my LG-P690 using Tapatalk 2
Yea, tried the 2.5.1 and 2.5.7 versions of djnoxd kernel from the original thread, I have tried roq kernel, Franco's kernel and stock posted by neko.
The battery is at least 8 months old
Sent from my LG-P500 using xda app-developers app
Don't know try to flash another rom maybe it has something wrong in your flashed rom
Sent from my LG-P690 using Tapatalk 2
zeratos said:
Hello, I have a couple of questions:
1.- Does a lower DPI setting consumes more battery? I'm using a 120 DPI setting and my battery doesn't last more than 10 hours being active plus 5 more on deep sleep.
2.- As seen on the first question, why? I have been trying kernels fro gingerbread, tried the Perfect Peso one, Roq's kernel, Franco's kernel and stock CM7 kernel, I'm not getting more than 12 hours of life.
And I do follow the steps for changing the kernel:
1.- wait for 100% battery
2.- wipe battery stats
3.- unplug phone
4.- wait for 100% depletion
5.- plug charger and let the battery charge to 100%
What am I doing wrong? S:
Thanks in advance.
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Click to collapse
Why don't you do one thing, just keep everything same and change DPI to 160 and test.
Wiping battery stats doesn't do anything to help extend your battery life. In fact, every time you unplug your charger when your battery is near full capacity, the battery stats get wiped. When you go to System settings -> Battery, the data which is used to build those graphs is what's called "battery stats." If anything, charging your battery to 100% and allowing it to go to 0% is actually causing damage to the internal cells of the battery, shortening it's life.
post-mortem said:
Wiping battery stats doesn't do anything to help extend your battery life. In fact, every time you unplug your charger when your battery is near full capacity, the battery stats get wiped. When you go to System settings -> Battery, the data which is used to build those graphs is what's called "battery stats." If anything, charging your battery to 100% and allowing it to go to 0% is actually causing damage to the internal cells of the battery, shortening it's life.
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Exactly! You should connect you phone to charger when your phone says, and it says at 20% not 0%.
Hey guys, I've got a bit of an issue with charging. I'm running Cataclysm ROM with FK r35 kernel with minor downgrading setups that worked perfectly well for me. So yesterday I left my phone on charge over night and woke up to find the charge stuck at 74~76percent and phone was at room temperature. Charger was plugged and in the About section it says AC charging. So I figured maybe its the kernel so I switched it off and kept it charging, but its still stops going above. When using the phone the battery charge reduces normally. Any suggestions? I thought maybe the battery's internal cycle is not in sync but there's no option to reset it.
Edit: atm I'm trying to completely drain the battery and let it charge again. Hope that will solve it.
Try a battery calibration app.
Sent from my Nexus 5 using Tapatalk
yeah, let it drain down the power it off and back on.
when you say you switched off the kernel, i'm assuming you mean you either flashed the stock kernel back or dirty flashed the rom.
xBeerdroiDx said:
yeah, let it drain down the power it off and back on.
when you say you switched off the kernel, i'm assuming you mean you either flashed the stock kernel back or dirty flashed the rom.
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i would do this as well. let it drain far enough to where android shuts it off, and then boot the device up into bootloader and/or recovery. keep it on here until the device truly hits 0%(android shuts it down at 1% i believe). then plug it in and let it charge up completely
xBeerdroiDx said:
yeah, let it drain down the power it off and back on.
when you say you switched off the kernel, i'm assuming you mean you either flashed the stock kernel back or dirty flashed the rom.
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Sorry I wrote it wrong. I meant I switched off the phone and tried charging it. ATM ive turned it on and its been charging for the past 1.5hours and its still on 16percent. Its charging extremely slow and in System Monitor app it shows that charging will complete in 3hrs39min...btw I'm using the stock charger and cable that came with it.