Over the course of months of flashing, I have noticed that my battery life drains really fast. I'm currently running AOKP. I think I calibrated the battery correctly yet I still have terrible battery life. I charged it to 100%, used an app, Battery Calibration, to reset the battery stats, let it drain to 0%, the plugged it back in. The battery said 57% so I charged it back to 100% yet the battery life is still awful. My brightness is at the lowest setting, my WiFi is off, and I am using Greenify to hibernate applications. I've attached pictures of my battery life (from GSam) and pictures of what my software looks like. What is causing the drain? How can I fix it? If anybody can help, I'd be very thankful.
Edit: I have a Hyperion 4200 mAh battery. I replaced the stock battery but it didn't seem to make a difference. The voltage reads at about ~4200 mAh when at 98%.
Edit 2: My battery was at ~60% then I shut it off and plugged it in. It is now at 2%... Should I charge to 100% then reset battery stats?
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I've gotten my seidio extended battery and have never really tested it to its limits. I would like to have it functioning optimally. I have the app "Battery Monitor" installed which can calculate the percentage left via the voltage as opposed to the stock battery indicator. I am currently showing 57% via the voltage monitor and 35% via the stock monitor. I have found that my battery can drop to ~1% (according to the stock indicator) however the voltage indicator would be at something like ~30%...my phone would turn itself off at that point in time and I would not be able to take advantage of the reported battery....I have followed directions from: droidxforums.com/forum/droid-x-general-discussion/18216-disable-low-battery-warning.html...I bootstrapped and reset the battery...but nothing. I was wondering if anyone has had any experience in this or could help me out.
Thank you.
I think if you go into the screen where you clear the Dalvik Cache in the recovery menu there's a battery settings function. If i've read some of these posts correctly, that calibrates the phone to the battery. basically re-adjusts the 0-100 range on the phone.
You need to do this when the battery is fully charged.
Draining your battery all the way down will destroy your batteries capability of holding a charge in the future.
Your phone is suppose to only charge to ~90% and cut off at ~10%.
Ultimately this means you are only using 80% of your battery, but it's how Li-Ion batteries works.
If you truly drain it all the way down you ruin the battery.
There are some things you can do to recalibrate the software that determines the charge level of the battery though, like the above post suggests.
I don't know if you're running a custom ROM, but if you are or aren't you should definitely check into changing your phones Kernal to Chad's or IncrediKernals. They drastically improve battery life.
For me, it gave massive improvements for 'screen off' (1% depletion every 1 hour) and significant improvements when using the phone.
Of course I'm using the HTC extended battery, but that was much better than the 3-5% per hour I got before.
hello,
please tell me what's wrong with my xda iis. when the power below 75% and i activated wifi/camera/any apps, oftenly it turn off by itself. also, it often signal loss or cannot make/receive calls. thanxs
Newly flashed rom, charged it full, and recalibrated battery.
only 6% battery drain while sleeping
But when im using it, it could use 1% battery after 5 minutes, but then suddely the next minute it has dropped 2-3%.
Sometimes it holds the battery, but then suddely it drops like crazy.
I havent let the battery die after recalibration, but i thought that after resetting the battery stats it should be more linear battery drain when im doing the exact same operation the whole time, so i guess it would drain the same amount of battery, not being that jumpy
b1rken said:
Newly flashed rom, charged it full, and recalibrated battery.
only 6% battery drain while sleeping
But when im using it, it could use 1% battery after 5 minutes, but then suddely the next minute it has dropped 2-3%.
Sometimes it holds the battery, but then suddely it drops like crazy.
I havent let the battery die after recalibration, but i thought that after resetting the battery stats it should be more linear battery drain when im doing the exact same operation the whole time, so i guess it would drain the same amount of battery, not being that jumpy
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using Current widget or battery monitor to observe how many mA it consume every one or five minutes? average 2-10mA is normal
i ask this because my battery stats have gone dumb dumb on me. first i had a 40% instant drop when rebooting and since 62% charge on my phone Battery Life how been showing 4150mV. it may fructuate 50mV (i think it keeps topping battery off and then when it goes down a tad i tops off again ).
So my question is then is my battery already fully charged and my battery % is off and if so why would it keep slowly going up when the mV's are no longer going up?
fyi i trust this battery widget. used it in 3 phones for 2 1/2 years. hasent update recently either
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When your battery is fully charged it is generally around 4200mV. It seems like your battery is not calibrated. I recommend the battery calibration app. Search it in the market. Very easy to calibrate. Just charge till its at 100% and close to 4200mV and then hit calibrate.
Also, to monitor your battery stats (voltage, %, mW usage) I recommend the battery monitor widget. It shows graphs of your mV as well as your battery percentage over time.
Thanks bro, I apreciate the indepth answer. I thought it was 4200 but I gotta be sure u know
I bought a new battery today, a Chinese knock-off battery which claims to have a capacity over 2000. I live in Mongolia, so that's basically my only option if I want a replacement battery, since there's basically no postal system here.
When I first put in the battery, it showed a 59% charge. After a few minutes and maybe a reboot, it showed a 20% charge. It consistently drained down to zero, and I'm charging it now.
I've experienced really strange battery drain with the former battery (also a Chinese knock-off) where it loses maybe 10 percent an hour on idle, so I figured the battery needs to be replaced. Is there anything I can do to calibrate it? I have a feeling that the charge is actually more than is being shown, but no way to confirm my suspicions. Am I right just to try to charge it to 100% and discharge it to 0% until the battery life gets better, or is there something else to do? I should mention I've tried resetting the battery stats in CWM with no real effect.
Thanks from Mongolia.
Go into recovery when battery is at 100% and go to advanced then clear battery stats or download battery config for rooted devices and clear battery stats that way.
Nelinski said:
Go into recovery when battery is at 100% and go to advanced then clear battery stats or download battery config for rooted devices and clear battery stats that way.
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Clearing battery stats achieves nothing other than deleting the stats on the what has been using battery power. Battery calibration isn't required on our phones.
duraaraa said:
I bought a new battery today, a Chinese knock-off battery which claims to have a capacity over 2000. I live in Mongolia, so that's basically my only option if I want a replacement battery, since there's basically no postal system here.
When I first put in the battery, it showed a 59% charge. After a few minutes and maybe a reboot, it showed a 20% charge. It consistently drained down to zero, and I'm charging it now.
I've experienced really strange battery drain with the former battery (also a Chinese knock-off) where it loses maybe 10 percent an hour on idle, so I figured the battery needs to be replaced. Is there anything I can do to calibrate it? I have a feeling that the charge is actually more than is being shown, but no way to confirm my suspicions. Am I right just to try to charge it to 100% and discharge it to 0% until the battery life gets better, or is there something else to do? I should mention I've tried resetting the battery stats in CWM with no real effect.
Thanks from Mongolia.
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if you want to increase battery life for your new battery, charge it fully to 100% whenever you charge it will increase charge storing capacity of the battery
duraaraa said:
I bought a new battery today, a Chinese knock-off battery which claims to have a capacity over 2000. I live in Mongolia, so that's basically my only option if I want a replacement battery, since there's basically no postal system here.
When I first put in the battery, it showed a 59% charge. After a few minutes and maybe a reboot, it showed a 20% charge. It consistently drained down to zero, and I'm charging it now.
I've experienced really strange battery drain with the former battery (also a Chinese knock-off) where it loses maybe 10 percent an hour on idle, so I figured the battery needs to be replaced. Is there anything I can do to calibrate it? I have a feeling that the charge is actually more than is being shown, but no way to confirm my suspicions. Am I right just to try to charge it to 100% and discharge it to 0% until the battery life gets better, or is there something else to do? I should mention I've tried resetting the battery stats in CWM with no real effect.
Thanks from Mongolia.
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See this post:
http://forum.xda-developers.com/showthread.php?t=1312273
Never, ever I repeat never let your battery drop below around 5%, and always charge it before it reaches zero. I use the Guage Battery widget v3 pro as it is very accurate, but you can also get the free version. You can & should use the free battery calibration tool from the Google play store, simply install it & charge the battery to 100% then run the calibration App. simples
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Have a Desire Z with an extended Mugen battery. On both CM7 and now Mimicry 1.5 the battery will drain down to 1 or 2% in a fairly linear fashion. The phone will then work fine for quite a few hours more with the battery meter stuck at 1%. Is this an issue with the battery? Or the ROMs?
Most searches for battery calibration bring up mention of removing batterystats.bin....
Charge fully, then drain until it shuts itself off. You are now calibrated.
Authorita said:
Charge fully, then drain until it shuts itself off. You are now calibrated.
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As detailed by Mugen themselves? Done that numerous times and still the same.
Have done a little more digging and think this might be a battery issue, just ordered a new Anker battery to try. When looking at the stats on battery monitor widget the battery hits 1% at 3405mV. 3 hours later with normal usage it's still at 1% and 3405mV.