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I currently run MIUI on my Evo, and I'm having a problem. My phone will say its fully charged and all, with the green LED saying so, but when I unplug the phone, my battery level drops down to 94% immediatly. What is this? I bought a brand new battery and I still got this problem. Anyone who can I can do?
Sent from my HTC EVO 4G using XDA
You either need to calibrate your battery (app off the market). Or try using a SBC kernel, which properly charges your battery to its full capacity. Make sure its an aosp kernel like mason, or taimat.
Lol sane experience on morning
wanam v10.6 siyah v3.0.1
Definitely needs calibration.Just search for how to properly do it on the forums.I personally use battery calibration from the app store.Charge the battery to 100%,then use the app.Unplug through phone and use the phone all the way until it dies on its on.Then plug it in without turning it on and wait until its fully charged.Turn on and use it once more until it dies.Charge again to 100% then after that you should be good to go.Hope this helps ya.
Sent from my SAMSUNG-SGH-I717 using XDA Premium App
A non-sbc kernel will charge to 100%, then begin to discharge to about 90%, then cycle back up... Depending when you pull the plug, in reality it could be anywhere inbetween that range, so 100 is not a true 100... Calibrating the battery by deleting the bin file doesn't produce any long term results..
A manual way to mimic a full charge would be to charge to 100 percent, unplug, plug back in for a bit and repeat about 10 times, and it should give you a decent charge.
That's a manual way of doing what a SBC kernel does automatically for you
Hey,
Like they said get the SBC, and calibrate your battery, and that should fix it.
I assume at night you are plugging it in till the morning, and this is your issue because in the middle of your sleep it is reaching full and stopping its charge. so by the time you unplug it drops down to how much it discharged.
Charging with your phone off solves this to
Let your phone completely drain till it turns off. Charge the phone while its off till you see the green "charged" light. Unplug usb, wait for green light to disappear and plug usb back in, phone will still charge. Repeat process about ten times. On the tenth time boot into recovery and wipe batt stats, then reboot phone.
Sent from my PC36100 using XDA
Flashed the SBC, and properly calibrated my battery. I'm still at 100% battery level after an hour!
Sent from my HTC EVO 4G using XDA
Good to see that worked for ya. I'd +1 the SBC kernel if you hadn't found that it has been working for you. I've been using Mason's 14 with ICS for a few weeks now and i've found that with the screen off, the battery sits at 100% for quite a while. I haven't used the battery calibrator and maybe i should see how that helps. Does it show significant results or is it mostly a gimmick?
dougfalk said:
Good to see that worked for ya. I'd +1 the SBC kernel if you hadn't found that it has been working for you. I've been using Mason's 14 with ICS for a few weeks now and i've found that with the screen off, the battery sits at 100% for quite a while. I haven't used the battery calibrator and maybe i should see how that helps. Does it show significant results or is it mostly a gimmick?
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Im not sure what everyone on here thinks it does, but calibrating the battery is strictly for stats. It will not lengthen the battery life or keep it from draining down from 100% faster. All it will do is assure that your battery stats, aka estimated time you have left on your battery, are more accurate.
---------- Post added at 05:25 PM ---------- Previous post was at 05:15 PM ----------
msr4 said:
Flashed the SBC, and properly calibrated my battery. I'm still at 100% battery level after an hour!
Sent from my HTC EVO 4G using XDA
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good luck. I tried sbc and it was working well for about two weeks, then my battery suddenly started draining super fast. Rumor has it that SBC will in time ruin your battery, which it seemed to possibly be doing to mine. Got rid of SBC, flashed back to build28, ran vipermod script and undervolted -75mV and im magically back to normal.
My findings are that if I just run the stock kernel with build 28, I get the best battery life. As soon as I started trying mason kernel, tiamat kernel, or even faux kernel on build 31, my battery drained too fast for my liking. Thus far I have reached 40 hours on my battery on build 28, with vipermod, stock kernel!
I just got brand new batteries, i have not calibrated nor wiped battery stats after flashing. I do have Mason's kernel and am under-volted by -50. I also have an app called battery xl it helps control what is running when you may not be aware or forget. My battery stays at 100% for over 2hours with minimal use. The only thing i heard is that you have to use the battery down to 10% and then charge while phone is off.Do this about 4 to 5 times and that conditions it(when it's brand new) and it will help your battery last longer before needing a replacement.
Just my .02
Several people have reported bad experiences with the SBC kernels, but there are many more (myself included) that have had absolutely no issues with them and I have used several iterations of the SBC since it was first released for the Evo.
At this point, for me, the benefits more than outweigh the risks. If you do have a problem, buy a new battery. They are pretty darn cheap these days.
My G2 gets ghastly battery life. I've tried Juice Defender and I've recalibrated more times than I can remember. Most notifications are turned off and I'm conservative about powering off the various radios when I'm not using them. It wasn't always like that. I felt like I was getting most of a full day on one charge and loving it for many months, but something happened last summer I think. Maybe dust or moisture affected the phone. I've got a total of six batteries and three external battery chargers. No battery whether it's the OEM original, 1500mah spares that were amazing before, or the new 1800mah evo shift 4g batteries I tried out, will last more than about four hours from full charge to the 15% warning sound.
I've tried only charging in the phone. I've tried rotating batteries charged in the external chargers. Like I said, I've tried calibration scenarios of various kinds.
Last night, I took a fully charged 1800mah battery and put it in my phone and then charged the battery in the phone. The orange led never turns green when the phone is off. When the phone is on, I can just barely get the led to turn green at about 91% (starting from what should be a full charge that is reported as 80% by the phone). This takes a good 10 hours of charging. As soon as I woke the phone this morning, the battery meter started dropping while the phone was still plugged in. After unplugging, the meter drops to 80% in a matter of a few minutes.
Like I said, I tried juice defender. It only helps a little but the cost is waiting for the data radio to reconnect every time I wake the phone. I thought BT was the culprit for a while, but now it really doesn't matter if I leave it on or turn it off.
At the other end of the charge, the phone can run for several hours when the battery is supposedly between 1 and 3%. I know we are told to start charging again at 15% but my phone drops to that level in 3-4 hours of regular use. I haven't seen the phone report 100% charge on any battery in six months time, but it runs and runs at 1%. This is what bugs me. Is the phone just mis-reading how many milivolts are coming out of the battery? Why can't I complete the first step of calibration (charge overnight to the 100% mark)? Is there a hardware component that can be causing this or should it be entirely fixable in software?
Thanks for any ideas or tips
Did you wipe battery stats?
Sent from your phone
waxinpoetic said:
Did you wipe battery stats?
Sent from your phone
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Yes I have many times but thanks for the suggestion.
Figured so.. Too bad, would have been too easy. I'm starting to see some batttery drain on my desire z now too. Im wondering if mine is a radio issue.
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waxinpoetic said:
Figured so.. Too bad, would have been too easy. I'm starting to see some batttery drain on my desire z now too. Im wondering if mine is a radio issue.
Sent from your phone
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I changed radios and did RIL matching last fall based on other's comments about better battery life, 4G and GPS. While I've had faster GPS locks and maybe better 4G performance, my battery life did not improve. It may have even gotten worse.
Today I'm trying out some different CPU governor settings. The CM 7.2 RC1 default is 'interactive' and I wouldn't normally touch those settings. I think the powersave governor helped a lot, but the phone became almost unresponsive. Trying 'conservative' now. I should have read This long ago, but just got around to it today. I might invest in the SetCPU app as well.
OK, I can count on a good six hours of normal use if setCPU is holding down the max cpu frequency at night or when the screen is off. I'm still tweaking. Today, the phone crashed while playing music over A2DP and tracking a run with runkeeper. I think it needs to tick faster than 368Mhz when the screen is off.
Are you seeing improvement? I changed radios and like you havent seen much improvement. But I am a little better off than you are. My battery drain is terrible (1-3%per minute) only when connected to the internet (4g or wifi) or using navigation. If the screen is off, or if Im using non-internet apps I seem to get regular battery use. Good luck with your cpu settings.. I have ordered a new battery, but I doubt it will solve my issue. I may try tweaking my settings too soon, but Id better research more.
Just wondering do you have SuperCharger V6 installed? On my Desire Z I had some serious battery problems just as you mentioned. After I would flash my ROM (wiping the caches + reinstalling) my battery life would return to normal. But whenever I would flash SuperCharger v6 my battery life would spiral out of control. My suggestion for a ROM that handles battery life fairly well is Andromadus Audacity B2, just make sure you download and flash GAPPs (google apps). For example running that rom I have been getting very good battery life, approx. 16-20 hours of battery life with moderate use) with default CPU settings and data always turned on. I'm sure if you use Juice Defender to control your data you'll get above average battery life.
Note: Andromadus is an ICS (android 4.0) ROM
Qwerty_Uieo said:
Just wondering do you have SuperCharger V6 installed? On my Desire Z I had some serious battery problems just as you mentioned. After I would flash my ROM (wiping the caches + reinstalling) my battery life would return to normal. But whenever I would flash SuperCharger v6 my battery life would spiral out of control. My suggestion for a ROM that handles battery life fairly well is Andromadus Audacity B2, just make sure you download and flash GAPPs (google apps). For example running that rom I have been getting very good battery life, approx. 16-20 hours of battery life with moderate use) with default CPU settings and data always turned on. I'm sure if you use Juice Defender to control your data you'll get above average battery life.
Note: Andromadus is an ICS (android 4.0) ROM
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Thanks (and thanked) Ive been waiting till ICS roms are bug free and having working cameras, but I think I may just jump on it now. My battery issues are untenable at the moment on a CM7 based rom. Thanks for the advice.
I was seeing some improvement due to SetCPU profiles. However, now if I have GPS and Bluetooth on so that I can listen to music and track my run in runkeeper, the phone seems to 'crash' after about 35 minutes or so. The battery meter shows that the battery takes a nose dive and I think the phone shuts down at 1%. If I restart the phone, it might say I have 30 or 40% charge left but then it drops rapidly again. It seems like it hates the warmth of my pocket. If I let the phone out in the cool air like on my desk, I can reboot at get back to 60 or 70% even though it was just saying 3%. I'm not running SuperCharger.
I'm trying to find cheap G2s for parts on ebay now. Maybe I can at least test out my six batteries in a different phone to see if any of them are shot. They all seem to have the same problems in my phone.
This will be my final update. I bought a used G2 off ebay. The same batteries I used before now show as fully charged when I expect them to be fully charged. I will be getting a feel for general battery life over the next few days, but I expect battery life to be roughly the same. I just won't have to guess at what the current battery level really is.
I'm seeing now that the new phone will show a 60% charge when the old phone shows 15% for the same battery at about the same time.
The new phone shows 100% when topped off but if I put the topped off battery in my old phone, I see 75-80% charge.
I may try sending the old phone to HTC depending on what they offer for repair services.
revwillie said:
I bought a used G2 off ebay. ... the new phone will show a 60% charge when the old phone shows 15% for the same battery at about the same time
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I think what's happened to your old phone (and mine!) is that the onboard voltmeter chip is reading low. I've compared the on-board mV reading to a multimeter-measured battery voltage and what the phone reads as 3.9V the multimeter gets 4.2V (a fully charged Li-Ion battery).
Who knows what's behind it, but it seems like a hardware problem to me.
So i'm running stock jellybean 4.1.1 OTA (yakju) however i've noticed battery life isn't great, charged phone overnight to 100% its been on standby for 7 hours and is already down to 68% screen time on is only 3 minutes, is this normal battery drain seems a bit excessive for standby.
depends on what you have running and syncing, etc.
you gave us no screenshots or anything to base anything off of.
I just charged up my phone from a 20 hour run, almost 4 hours screen time broswing with wifi mostly... stock JB 4.1.1
edit: oh i forgot i am using franco.Kernel
On my Nexus battery life isn't much better than on your Nexus, It is normal or then my Gnex battery is poor again..
I'm using "takju" JRCO03C with it's own radio + kernel so all is stock and battery life is enough good, for me on yakju builds the battery drains much much faster than on yakjuxw/takju builds..
My Galaxy Nexus's battery stays 14 hours with not using it and then battery is left something 12% or less, and when I use my Gnex then I can use it like 2 and half hours and then the battery has too less life to use it... (when Clock Alarm is on, and Hotmail + Facebook notification enabled...)
Google Now is said to use lots of power, have you tried disabling that?
I am also getting really bad battery life since JB. I have the extended 2000mah(?) battery so this might be the issue although I have not had any issue with ICS, I got about 26 hours with this battery on ICS. Now on JB I will go from 100% to 85% in 2 hours and all I did was text about 10 times, no phone calls. Today I woke up at 6am listened to Google music going to the beach, at the beach did not use the phone except to check the time.
Listened to Google Music on the way home, got home at 6:30pm battery was at 31%. I did not surf, made one phone call that lasted 30 seconds.
This has been about consistent since JB installation. Everything is stock except for the fact that I am rooted.
I am currently conditioning my battery, when done Im going to remove facebook and see what happens. Also can we "freeze" Google Now? This so I can test the batter.
Thanks for any suggestions and/or ideas.
I'll chime in to say I'm also getting slightly worse battery life on JB. I'm mostly observing idle battery drain during the work day. On ICS it was a steady 0.5%/hr, on JB it is over 1%/hr. So before I could get away with not charging it some nights and it'd only lose like 3% overnight, but now it's more like 7%. The phone is stationary during this time so I can't imagine Google Now is contributing much. I'm not rooted, completely stock.
What are some options available to investigate this? BetterBatteryStats or apps like that?
I had been running rooted 4.1.2 on my sgh-i747 for a while but I decided to upgrade to 4.2.2. After I tried a few roms i settled on JellyBam. The battery life has since been horrible. I am a fairly light user, and after a full day my battery was always around 75%. After 4.2.2/JellyBam I'm lucky to see my battery above 50% at the end of the day.
The battery stats look normal, I have most of the extra battery-draining features turned off, but my battery life is still pathetic compared to 4.1.2. The battery drain was the same when I tried out the latest MIUI, but I haven't had any other roms installed long enough to test their battery life.
Any suggestions?
nosmokingbandit said:
I had been running rooted 4.1.2 on my sgh-i747 for a while but I decided to upgrade to 4.2.2. After I tried a few roms i settled on JellyBam. The battery life has since been horrible. I am a fairly light user, and after a full day my battery was always around 75%. After 4.2.2/JellyBam I'm lucky to see my battery above 50% at the end of the day.
The battery stats look normal, I have most of the extra battery-draining features turned off, but my battery life is still pathetic compared to 4.1.2. The battery drain was the same when I tried out the latest MIUI, but I haven't had any other roms installed long enough to test their battery life.
Any suggestions?
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Flash a different kernel and check the thread of said kernel for battery saving settings. I'm on 4.3 and usually sit at around 60% after an 8 hour work day and moderate/heavy usage.
hi all, my phone battery is draining superfast and i'm not sure what is the cause of it.
after kitkat was released for SM-t215, i had it rooted. here are the lists of current problems faced.
- battery draining superfast when i'm playing games. it would reach 15% within 10-13 mins time.
- it'll charge superfast too. from 15% to full 100% in 1 hour time.
- my phone will suddenly off on its own when im using it.
- battery will show charging with a red slash on indicator even when cable is not plugged in.
i have installed CM junk cleaner to boost the speed of my games. is this the cause of it, or is it because of root, or is my battery life has shortened?
i need helps, opinions and answers if any.
thank you