I have done a bunch of reading since my first flash to Cyanogen's 6.1 but not finding really satisfactory answers.
With the old rooted stock deodexed...I was getting about 14-15hrs of moderate-high use. So basically I pulled the cord at around 7am and plugged back in around 6pm with about 40%.
Was fine.
Flashed 6.1 last night and now I am two hours off charge and sitting at 58%!! I have all syncs turned off and I have no wifi/gps/4g running. The ONLY widget at the moment is weather and it only updates when I hit refresh.
My search has shown something called battery calibration...but that doesn't make sense to me. I have done the long charge, power off charge, power on charge etc... But since I have a wall battery charger I have just moved away from that and occasionally swap out my batteries for a full charge in that thing.
Does that 6.1 REALLY need another voodoo approach to battery life? Also the threads I have found seem to be for the nexus one or the HTC Magic(?).
Anyone else suffering HORRIBLE battery life after flashing 6.1?
Anyone got a link to a fix for the EVO and maybe something that I can get through the day with (do not have my charger at work)?
When I flashed CM7 to my wife's phone the battery was horrible (Less than 2 hours). I recalibrated the battery and the next charge lasted 2 days. Give this a try:
Battery recalibration
If you're experiencing higher than normal battery drain, try the following:
Charge the device to full battery; let it keep charging until the battery says it is fully charged. Do not just wait until the light is green, it isn't always fully charged, causing a lot of inaccuracies. (You can check by going to: Settings -> About device -> Status -> Battery Level = Full.)
Boot to recovery mode and delete the battery stats
NOTE: To have the most accurate of battery stats, reboot the device immediately after wiping the battery stats and wait for CyanogenMod to boot completely to the desktop. Once your entire boot is done and you have full access to the device, go ahead and pull the charger and continue with this troubleshooter.
Do not charge the device until after draining the battery completely, resulting in it automatically shutting off.
Recharge the device completely and then use as you normally would.
Also, CM6.1 or CM7 should get decent battery life. If it still doesn't try flashing a different kernal. I found that savaged zen bfs sbc kernal extended my life considerably.
sablesurfer said:
I have done a bunch of reading since my first flash to Cyanogen's 6.1 but not finding really satisfactory answers.
With the old rooted stock deodexed...I was getting about 14-15hrs of moderate-high use. So basically I pulled the cord at around 7am and plugged back in around 6pm with about 40%.
Was fine.
Flashed 6.1 last night and now I am two hours off charge and sitting at 58%!! I have all syncs turned off and I have no wifi/gps/4g running. The ONLY widget at the moment is weather and it only updates when I hit refresh.
My search has shown something called battery calibration...but that doesn't make sense to me. I have done the long charge, power off charge, power on charge etc... But since I have a wall battery charger I have just moved away from that and occasionally swap out my batteries for a full charge in that thing.
Does that 6.1 REALLY need another voodoo approach to battery life? Also the threads I have found seem to be for the nexus one or the HTC Magic(?).
Anyone else suffering HORRIBLE battery life after flashing 6.1?
Anyone got a link to a fix for the EVO and maybe something that I can get through the day with (do not have my charger at work)?
Click to expand...
Click to collapse
Thats a old cm, cm is now cm 7... maybe try that one..
Sent from my PC36100 using XDA Premium App
Yea Cm6 is dated. But that shouldn't matter.. I actually had fantactic battery when I was on cm6, much better than what I get on cm7.
First, check spare parts for wakelocks and make sure you don't have any. After that, follow Fazulkas advice to reset battery stats, follow it correctly tho. I never thought wiping stats would make a difference, but it surely does.
Ok, I'll try that process when I get home tonight. (Guess I can survive w/o a phone for a few hours?!?! :^O) Haven't set up more than just the google account on this ROM as I wanted to test it first. So maybe tomorrow it will win me over.
DATED?!?! LOL! It was only just a final release a few months back...;^) It has all the important stuff working where as 7 doesn't and it is still a RC.
:^P
(Have you seen my sig? Old dogs only try the proven tricks thank you very much. :^)
CM6 is not dated. In fact CM 6.1.3 is the most current stable-release version of CM available!
Sent from my PC36100 using XDA App
Its not the ROM. Anytime you flash a ROM, you need to calibrate your battery. By calibrate it isn't the plug in over and over method.
You charge to 100%, discharge it fully. Charge back to 100% then wipe battery stats in recovery. Then use your phone.
Flashed 6.1 last night
Click to expand...
Click to collapse
There is your problem. Anytime you flash a new rom, you need to give it at least a day or two to fully calibrate everything in the rom.
sekigah84 said:
Its not the ROM. Anytime you flash a ROM, you need to calibrate your battery. By calibrate it isn't the plug in over and over method.
You charge to 100%, discharge it fully. Charge back to 100% then wipe battery stats in recovery. Then use your phone.
Click to expand...
Click to collapse
HUH...this is my fourth ROM flash, first one away from stock rooted and I have never had this issue. Maybe the stock ROMs do not have this issue?
Related
Well, I jumped the gun and am using Adrenlyn's "Second Wave" Froyo rom. Also, I threw in the 2.15 radio update, so I should be all caught up. HOWEVER, I noticed my battery has been...eh, at best.
Then I thought, "could it be the new toolbar I installed." I added the Stock Sense UI bar with Battery %'s added in (white.) Do you think this could be hampering my battery life, or do you think it's more a psychological thing, since I can now see exactly how much battery is left?
frishmans92 said:
Well, I jumped the gun and am using Adrenlyn's "Second Wave" Froyo rom. Also, I threw in the 2.15 radio update, so I should be all caught up. HOWEVER, I noticed my battery has been...eh, at best.
Then I thought, "could it be the new toolbar I installed." I added the Stock Sense UI bar with Battery %'s added in (white.) Do you think this could be hampering my battery life, or do you think it's more a psychological thing, since I can now see exactly how much battery is left?
Click to expand...
Click to collapse
not trying to be rude man but the reason why your not gonna get an answer is because this belongs in general section. follow the rules of the forum and people will help you.
bluewave53 said:
not trying to be rude man but the reason why your not gonna get an answer is because this belongs in general section. follow the rules of the forum and people will help you.
Click to expand...
Click to collapse
This.
That said, I'm assuming you did a complete wipe of Cache and Data when you installed the new ROM. If so, this erased the battery stats. If you didn't have the phone at 100% charge when you did this, your battery life will suffer. Steps to fix it:
1. You will need to charge the phone to 100% (while the phone is off).
2. Leave charging cable plugged in.
3. Boot into recovery and wipe the battery stats (should be under Advanced).
4. Then boot into Android.
5. Then remove the charging cable.
Your phone will have abnormally good battery life during the first discharge, but after you charge it again it'll be back to normal.
Pretty sure this info is searchable (I have typed it out at least 3 times myself)... maybe it should be added to the Wiki.
larsrya8 said:
This.
That said, I'm assuming you did a complete wipe of Cache and Data when you installed the new ROM. If so, this erased the battery stats. If you didn't have the phone at 100% charge when you did this, your battery life will suffer. Steps to fix it:
1. You will need to charge the phone to 100% (while the phone is off).
2. Leave charging cable plugged in.
3. Boot into recovery and wipe the battery stats (should be under Advanced).
4. Then boot into Android.
5. Then remove the charging cable.
Your phone will have abnormally good battery life during the first discharge, but after you charge it again it'll be back to normal.
Pretty sure this info is searchable (I have typed it out at least 3 times myself)... maybe it should be added to the Wiki.
Click to expand...
Click to collapse
Well, you helped more than one person. Thanks, going to try it right now. Now just wait to wait patiently for 3 days for the battery to charge to full...
God, I hope the official 2.2 OTA fixes the battery life/charging time.
to be honest, my battery has been ****ty after radio update.
has anybody does a comparison of cell standby percentages from before/after the 2.15 radio?
I just did the Battery wipe
Well in the 5 minutes I have had my phone back on I am already down to 96%
I am using Sky Raider 2.5.2 Stock with the UnRevoked-Forever and Radio 2.15
I am not seeing much if any difference in battery life...
I can plug in as needed when in my home office, but on the road a whole other ballgame.
I have 2 spare batteries HTC EVO 4G 1800mAh, Can't afford not to be connected...
Throw hydras stock undervolted kernal in. I can go a good day and a half on a full charge with the 2.15 radio installed
Sent from somewhere
Which Kernel
lgldrgdlr said:
Throw hydras stock undervolted kernal in. I can go a good day and a half on a full charge with the 2.15 radio installed
Sent from somewhere
Click to expand...
Click to collapse
1.115 or 1.113 OC/UV
http://www.hydrakernel.net/stock_speed_undervolted_kernels.htm
Sent from somewhere
larsrya8 said:
This.
That said, I'm assuming you did a complete wipe of Cache and Data when you installed the new ROM. If so, this erased the battery stats. If you didn't have the phone at 100% charge when you did this, your battery life will suffer. Steps to fix it:
1. You will need to charge the phone to 100% (while the phone is off).
2. Leave charging cable plugged in.
3. Boot into recovery and wipe the battery stats (should be under Advanced).
4. Then boot into Android.
5. Then remove the charging cable.
Your phone will have abnormally good battery life during the first discharge, but after you charge it again it'll be back to normal.
Pretty sure this info is searchable (I have typed it out at least 3 times myself)... maybe it should be added to the Wiki.
Click to expand...
Click to collapse
Right on, sorry about that yall. :/
And indeed, my phone was NOT fully charged to 100%, so I'll do the steps to fix it, and eventually report back. I do have the Hydra-Stock UV Kernal installed already.
Found this on another forum, I have done this a few times myself (do it whenever i flash a new rom because i always clear battery stats, can't hurt). Have found that it does top it up a fair bit. Before doing this i find my desire will drop to +-93% straight off the charger, however this keeps it 100% longer and i actually get to see the numbers 99-94%
Worth a go in my opinion because it only takes 5 mins of your time and can't hurt the phone... So any minor gain from this process is a win...
Hi *******, I understand your concern regarding battery life on your Nexus One device. The following steps should significantly extend the battery life on your phone. Please connect the phone to the charger with the phone powered on, and allow the phone to charge until the notification LED is green, indicating the device is fully charged. Disconnect the phone from the charger, and power it off. Reconnect the phone to the charger with the phone powered off, and allow the phone to charge until the notification LED is green. Disconnect the phone from the charger and power it on. Once the phone is powered completely on, power it off again and reconnect it to the charger until the notification LED is green. Disconnect the phone, power it on, and use it. You need to use this sequence only once. If the issue of battery life on our phone persists, I recommend you contact our HTC accessory department directly.
Mod Edit: There have been a few reports of damaged batteries by people on this thread. There is a chance that this MAY damage your battery. Please bear this in mind if you choose to follow the instructions above.
supportyou and the app!
Sent from my HTC Desire using XDA App
Thanks for that. At what point do you wipe battery stats? After the process is complete?
desire888 said:
Thanks for that. At what point do you wipe battery stats? After the process is complete?
Click to expand...
Click to collapse
Also wondering about this
You should wipe battery stats after its fully green (when powered off) then boot the phone back up.
You only need to do this once
I.e.
Charge till full when powered on
power off
charge till full again
boot into recovery wipe stats
boot and continue to use as normal
It works!!!
That's fantastic!
I read this topic this morning and tried immediately. Since this morning i only lost 4% until now. That's great news!
Thx a lot, man!
Sent from my HTC Desire using XDA App
thanks!!!!
battery usage is much better now!
how do you wipe batt stats?
kmetek said:
how do you wipe batt stats?
Click to expand...
Click to collapse
Via ClockWorkMod recovery
kmetek said:
how do you wipe batt stats?
Click to expand...
Click to collapse
Clockworkmod recovery -> advanced -> wipe battery stats.
Sent from my HTC Desire using XDA App
do i have to repeat that in future again?
vidler said:
You need to use this sequence only once.
Click to expand...
Click to collapse
first post
takes a long time to charge my Desire, but then i'll test this one!
Hope this will make battery life better. I have the same problem as described in first post (drops immediatly from 99% down to 93% )
Can someone suggest me how should I go about doing this if I use multiple batteries?
I'd imagine the phone can only be calibrated to 1 battery. But if I were to use another battery, would I screw up the calibration to the original batteries?
Right now as it is with moderate usage I need 3 batteries to last me through the day. :S
xNavyblue said:
Can someone suggest me how should I go about doing this if I use multiple batteries?
I'd imagine the phone can only be calibrated to 1 battery. But if I were to use another battery, would I screw up the calibration to the original batteries?
Right now as it is with moderate usage I need 3 batteries to last me through the day. :S
Click to expand...
Click to collapse
3 batteries?!
What rom are you using and how exactly are you using your phone?
I have just one battery and it lasts about 2 days with moderate use.
I am using this ROM: (sorry can't post link)
[ROM] Rooted Official HTC Android 2.2 (FroYo) ROM [Market issue fixed]
With my typical usage, I unplugged the phone in the morning from the charger, by the time I knock off from work, I would have left about may be 20%. With stock ROM and a single battery, there is no way that I could last 2 days with one single charge. My main use is web browsing, RSS, Facebook and IM. My estimation of my solid screen time is about 2-3 hours.
So I bought more battery just in case, and played with custom ROMs. I ended up using up a whole battery in 4 hours or so. Definitely something is wrong here. My gut feel is that both the ROM and batteries are suspects. Being a newbie I really need enlightenment.
Is it really needed to wipe the stats? I think I've accidently done this once already... cause the battery life is much better.
since this procedure, my battery stays at 100% since nearly 2 and a half hours now and i did 2 text messeges in between and recently checked the bat about 4 times
this couldnt be possible..
i mean the battery is almost doubled in comparison to how long it lasts before
is this possible??
yes it is possible
Dany0 said:
yes it is possible
Click to expand...
Click to collapse
but how?
i mean in this time the battery would have been dropped to arround 97
and now its still full?
i mean these are stats how are they increasing battery life? the batterylife is given from the cell itself?
when i first installed the latest release i had amazing battery life. Now im at 70% an hour an a half after i unplug it and it prpbably wobt last me another 5 hours. I dont think i have any apps draining the battery. Ive wiped battery stats. What's going on?
Sent from my PC36100 using XDA Premium App
If you used 30% in just over an hour, either you used it too much, or there is some app/process draining the battery. Download Spare Parts, go to Partial Wake Usage in the Battery History. See if anything stands out. If not, re-wipe everything and re-flash the rom. I'm running the same rom, and can go at least 3 days without charging.
battery usage history force closes spare parts...
Same here, it force closes when I look tap history. However I stopped using the changing photos lockscreen and my battery life seems to be improving.
World peace with no regard for human life.
standard wallpaper, and wallpaper lockscreen. I re-flashed the rom.
I had the same problem with an extended battery, only it would charge to 80%, then it power itself down and the battery would die. I took it to Sprint, they were awesome, the tech said that the modified scripting from the 3.0 Sense Roms is causing this problem on some phones, especially with extended batteries, rather flash my phone to stock, he gave me a differnt battery, wiped dalvik, said he did acouple things to it, and advised me to run a different ROM and see if that helps, preferrably a hybrid that the battery scripts have not been modified. I think alot of it was somewhat bs, but my phone holds a charge now, I am currently looking for a different rom...
It started out draining real fast, then it wouldnt charge after a few days
Hello all, I hope all is well! I have a huge problem... I've been running my evo on the boost network for the last two months and have been getting no more than 4 hours of battery use from every rom I use. I even tried the old destroyer rom and a number of different kernals. Im in need of help as soon as possible!!
How about a little more info. What battery are you using? How old is it? Have u checked to see what is running? Did this start as soon as you switched networks?
Im using the stock battery and its only about 3 months old... It was a claim from asurion. It started happening soon as I switched networks. While on sprint I could easily get a day 1/2 usage.
bigmain06 said:
Im using the stock battery and its only about 3 months old... It was a claim from asurion. It started happening soon as I switched networks. While on sprint I could easily get a day 1/2 usage.
Click to expand...
Click to collapse
It could have something to do with your radios, or just be a random coincidence with something else that's causing the drain. I'm not familiar with flashing to Boost at all, so I don't know if you have a different set of radios, PRI/NV, etc. You could try flashing a different radio, newer or older.
Supersonic Evo 4G | MIUI | Tapatalk
Just updated to the latest radios and battery still sucks!
I have Boost too.
The battery drains quicker with low or no signal.
download Spare Parts and check Partial Wake Usage, this will tell you if an app or apps are causing this.
Well I GUESS THIS IS DEAD...
Be sure to calibrate your battery whenever you flash a new ROM to optimize battery life. I prefer to calibrate using this method:
1) While your phone is powered on, charge the battery until the LED turns green.
2) Unplug the phone from the charger and wait until the LED turns off.
3) Now power off your phone.
4) When the phone is off, plug the charger into the phone and charge it until the LED turns green.
5) With the phone still off, unplug the charger and wait until the LED turns off.
6) Now power on the phone.
7) Wait until the phone is booted completely and then power off the phone again.
8) When the phone is off again plug the charger into your phone and charge it until the LED turns green.
9) Now boot your phone into recovery mode and navigate to the "Advanced" option using the volume up and down keys and then choose the option "Wipe Battery Stats."
10) Now reboot your phone and use it normally. You should notice improved battery life.
Source: androidadvices.com/calibrate-android-mobile-phone-battery/
There is also an app called battery calibrator, its free on the market. I use it with great results!
One_Shot_2012 said:
There is also an app called battery calibrator, its free on the market. I use it with great results!
Click to expand...
Click to collapse
I agree very good app, a lot easier than the way op put
Sent from my PC36100 using XDA App
Wiping battery stats is actually been found to be ineffective/cause more harm than good the best way to actually "calibrate" the battery is to backup your rom flash to aosp or froyo with an sbc kernel let your phone drain til it powers off boot it back up and let it shut off again usually only takes a few mins sometimes it wont power on again, plug in charger wait til red led stops blinking turn the phone on and charge it to 100 uninterupted and leave it plugged in for 15-30 mins at 100% then nandroid back to your back up do this once a month or find an aosp setup u like and stick with it, the myth of sbc damaging li ion batteries is just that a myth newer phones have trickle charging kernels stock now such as the rezound et4g and a few others that i dont remember off the top of my head
Sent from my SPH-D710 using xda premium
Well, everyone has their own opinions. For me, I prefer the method I posted over the app for battery calibration, because I get better results. Also, I've never heard of any negative side-effects from wiping battery stats, but feel free to do what you wish.
no signal horribal battery
9h0s7 said:
I have Boost too.
The battery drains quicker with low or no signal.
Click to expand...
Click to collapse
Monday and Tuesday I stayed in New Orleans Louisiana. I typically had 5 bars as far as signal goes.. While there I didn't have to charge the phone at all for 2 days with heavy usage might I add. The minute I made it back to my small town, the battery started to drain incredibly fast! So I've come to the conclusion that it is the poor service that drains the battery. With that being said, I would like to thank you all for your input!
hi all , i used my htc wildfire for 8 month and at first my battery displays 100% when its full but since 3 month till now it always display around ~ 40 - 60 % and can't increase more . So someone can help me . Thx for read and sorry for my bad english
Are you using custom ROM or the stock ROM that comes out of the box(Froyo v2.2) ?
If, you are on custom rom, then you may try deleting the batterystats.bin present in /data/system. But first charge your wildfire, and if your removing your wildy from the charger after it gets the green led indicator, then wait till it reaches the 100%. In my case my wildy gets the green indicator in 90% but I wait till it reaches the 100%.
So, when you get to 100 reboot into recovery and select the option "delete the batterystats.bin" in wipe section. and then use the phone till it reaches 20% and then connect to charger but this time make sure you do not use the phone till it reaches the 100%(you may charge it when its switched-off.).
Note: charging through USB connected to PC gives a better battery life than the adapter provided for charging.
If, you are not getting 100% as previously mentioned, then also you can try deleting the file using recovery. You can download an app from market which will also do the same "Battery Calibration".
I have same problem too. My battery charge till 75 % and then stopped, i charged it on turned off and then turned on. I tried to install Battery calibration but this app doesnt let to calibrate battery till is not on 100 %. Also I tried to unroot the phone, some say that it will helo but still useless.
Sent from my Wildfire using XDA
@Justin5 : "Also I tried to unroot the phone" if you haven't unrooted it then you can try to delete the batterystats.bin file from recovery(explained in the previous post). If you have unrooted your phone, then you will have the stock Sense ROM v2.2. In that case also, your battery backup will decrease.
So, better stick to any custom rom. I am now using SplashMOD v1.6. Its fast, stable and backup is also good with some customization. You can try CM-7,RemPuzzle also(try searching in CM7 post for the stable ROM, you can read reviews to get a better idea).
Note: You haven't told of the ROM you are using.
Batterystats.bin contains information about what uses the battery doesn't it? I don't think it tells it how much charge to hold + it gets deleted everytime you wipe and flash so I don't see how deleting that file can help.
Sent from my Wildfire using xda premium
I was reading an article on this the other day in the android forums,and I believe it was saying that wiping the battery stats does absolutely nothing even in regards to calibration. I might have read wrong but I'm sure that's what it was insinuating.
one minute it works,the next it doesn't......yes that's right its the crappy xda update.
slymobi said:
I was reading an article on this the other day in the android forums,and I believe it was saying that wiping the battery stats does absolutely nothing even in regards to calibration. I might have read wrong but I'm sure that's what it was insinuating.
one minute it works,the next it doesn't......yes that's right its the crappy xda update.
Click to expand...
Click to collapse
Battery calibration does work (at least it did for me, when my battery discharged in 1 hour on my and worked normally after calibration on my tablet)
Don't shoot the messenger lol.the article (not me) was saying that just a good old discharge and recharge is enough and wiping stats is pointless. If I can find it I will link it.
one minute it works,the next it doesn't......yes that's right its the crappy xda update.
deteling the battery status can work but if the battery has some damage will stay that way, i hate the battery for the wildfire, it does not last very long...
www.xda-developers.com/android/goog...-battery-stats-does-not-improve-battery-life/
Nuff said!!
slymobi said:
I was reading an article on this the other day in the android forums,and I believe it was saying that wiping the battery stats does absolutely nothing even in regards to calibration. I might have read wrong but I'm sure that's what it was insinuating.
one minute it works,the next it doesn't......yes that's right its the crappy xda update.
Click to expand...
Click to collapse
I also noticed the difference before and after wiping the batterystats.bin when I was in SplashMOD v1.0. The backup also get increased if the battery is charged through USB till it gets 100%.
But, If the phone has been continuously used without the complete charge cycle, then the battery life will get decreased.
rajumack07 said:
I also noticed the difference before and after wiping the batterystats.bin when I was in SplashMOD v1.0. The backup also get increased if the battery is charged through USB till it gets 100%.
But, If the phone has been continuously used without the complete charge cycle, then the battery life will get decreased.
Click to expand...
Click to collapse
I'll say it again for the hard of hearing, Its not possible for batterystats.bin to affect battery life in any way.
When you go to settings/battery where it tells you what %of the battery has been used by what, that is the only information stored in batterystats.bin and nothing else, it also resets itself every single time you fully charge the phone so no need to wipe it as chances are you already have not long ago.
Yes discharging the battery fully and then recharging fully will prolong battery life, but its not always practical to do so and even if you do, all batteries will come to the end of there life sooner or later.
Sent from my Wildfire using xda premium