I was reading in a thread and one of the developers mentioned that clearing this in recovery doesnt do what you think it does. So, out of curiosity, I have a couple of questions. What exactly does it do? How should we use this feature?
TIA
I don't ever use it. It doesn't matter anymore as it doesn't really do anything. You can do the same thing charging your phone to full.
sent from MY BAD A$$ ET4G
You mean wiping battery stats?
I mean it doesn't really do anything at all.. Doesn't help battery life.. And doesn't calibrate the battery (I've heard that a lot)
-TeaM VeNuM Like A Boss
i think all it does is clear out the log that your battery use goes into.. not sure tho lol. either way everytime i do it on a full charge my battery percent drops drastically
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Related
Topic, I would like to know of a better kernal to use for this ROM. Couldn't really find anything in the thread itself. Thanks in advance. I would like some better battery life.
World peace with no regard for human life.
At this time, the only legit option is stock kernal
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Hmm, well that doesn't sound good. How else am I to save battery life?
World peace with no regard for human life.
Use the MANY battery saving tips from threads on here, mainly on syncing and turning off radios you dont need. Also run SetCPU
Incredibly, the one voodoo dance "drain battery, charge off 'till full, and unplug/plug the unit 10 times" works like a charm... Might want to try it.
jacoballen22 said:
Hmm, well that doesn't sound good. How else am I to save battery life?
World peace with no regard for human life.
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Turn the phone off.
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Mordred69 said:
Incredibly, the one voodoo dance "drain battery, charge off 'till full, and unplug/plug the unit 10 times" works like a charm... Might want to try it.
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Guess you haven't read about people who've drained their battery all the way and then couldn't get it to charge huh?
Or that HTC says to NOT do that?
That's happened to me. I pulled it out, plugged the usb in and put the battery back in. Let it sit for a few hours and works.
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I think things were much better when I was alternating between a few batteries. But seriously, my battery life is atrocious compared to myns warm 2.2 and even cm7.
World peace with no regard for human life.
Hello hopefully someone can help me.I have an HTC evo 4g and i'm running cm. but my battery life is poor.10 mins after I remove the charger my battery level drops like 15% without me ever touching it again.i'm coming from a couple of sense roms and the battery level barely moved when my phone wasn't in use.I really like cm7,I want to keep it but my battery is draining too fast. After about an hr i'm at 68%. HELP!
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Did you fully wipe before flashing to cyanogenmod ? If you did I would let your phone die. Charge to 100% again. Then I would wipe again and wipe your battery stats. If your using Amon Ra recovery you can go to advance and select Wipe Battery Stats.
Thanks maybe I'll try that. This is kinda off subject but i'm looking at your name and your pic.you look kinda good Are you really from Harlem? Lol
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So im trying to figure out all the detail of my battery and how it works with my phone, i hear all these people getting great battery life and when i follow there setups i still cant match the life there getting even if i leave my phone asleep for hours.
Heres what i got, i downloaded battery monitor widget so i can kinda see whats going on and this is where i get lost.
My usage(mA) is usually bellow 0, which i believe is from undervolting? but it ranges from -466 to 707. The positive mA's come in spikes every few hours. I guess what im asking is this normal? I dont think so, i believe i have a rouge app thats keeping something going.
Can anyone shed some light on what i should be seeing?
I use BMW myself and I just use it for calibration and to see how long my battery has left. Try using juice defender. It turns off your mobile data while your screen is off and saves you quite a bit of battery. At the moment I'm getting close to 22 hours of life. Any other questions just pm me. I've tried a lot of stuff to help battery life.
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I need to figure out exactly what's causing this battery drain. At 7PM my battery was at 100% after installing a new radio+kernel combo. I also calibrated my battery using a method I read in the Calkulin thread for his ROM. The method was as follows: After installing a new radio, rom or kernel charge the battery to 100% then physically take the battery out for 3 minutes. Boot into recovery then wipe the battery stats and dalvik cache 3 times each. Boot into Android then charge to 100%. Download a battery calibration tool use that and discharge. Anyway, I did all of this and was done by 7PM. After light use...listening to a few songs via google music...did a search using 3g...nothing too heavy. By 8:23 my battery was down to 76%. I thought this was pretty abnormal so I downloaded some extra battery tools and app watcher tools to see exactly was draining me so bad. Over the course of about 1:30 hours my battery dropped from 76% to 46%. I froze some non essential apps after checking up on them with watchdog (social hub, yahoo finance, tts service and accuweather). Decided to do a restart to see if that would help and my battery read 17%. I just noticed that it went up to 18% and it's holding steady but this is really weird...I honestly don't know what's going on and I could really use some assistance with this issue.
I forgot to post stats for the past few hours. Before I started the battery drain quest the Battery Monitor Widget said that the estimated was around -280mA. Over the course of a few hours it ranged from that to well over -600mA. After the restart it dropped to like -2mA but now it's back up in between the -400mA to -700mA range. It's slowly dropping as I type but there's no way that this is normal.
Sometimes when doing reboots messes up the battery reading. Its done that to me before. I have noticed that on ics when I flash a kernel and modem it takes me like a full day to get good battery. After I flash it my battery is pretty bad. Search for an appstore called bettery battery stats. Its on here at xda somewhere. Use that to see if your phone is sleeping properly or if an app is wakelocking your phone. Also it depends on who u ask but wiping battery stats does absoutley nothing for me. Its been said before that it doesn't work. Hope u get it straightened out.
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thanks for the response. I've downloaded the battery stat app but I need to read up more on it to find out what the program is telling me. In your opinion what is good battery drain? I was on facebook for a second and it skyrocketed to high -600's but now it's down to about -90mA and dropping by just sitting in front of me.
musclehead84 said:
Sometimes when doing reboots messes up the battery reading. Its done that to me before. I have noticed that on ics when I flash a kernel and modem it takes me like a full day to get good battery. After I flash it my battery is pretty bad. Search for an appstore called bettery battery stats. Its on here at xda somewhere. Use that to see if your phone is sleeping properly or if an app is wakelocking your phone. Also it depends on who u ask but wiping battery stats does absoutley nothing for me. Its been said before that it doesn't work. Hope u get it straightened out.
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Clearing battery stats does work to wipe any info the os has on the battery. Just check your battery graph in settings, boot to cwm, wipe battery stats, then look at that graph again.
I know you know your fair share of info, so no disrespect man...
Sent from a phone with kNOw CiQ kOnane...
TeamERA said:
Clearing battery stats does work to wipe any info the os has on the battery. Jus check your battery graph in settings, boot to cwm, wipe battery stats, then look at that graph again.
I know you know your fair share of info, so no disrespect man...
Sent from a phone with kNOw CiQ kOnane...
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I think he meant wiping does nothing to actually effect the life of the battery... Which, I agree. I've never seen any benefits when I've done it on my ET our my Moment.
Wiping just resets the OS's experience with the battery. Using your phone normally for 24 hours had the exact same effect.
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things were looking up as far as battery life goes. i got rid of some programs that were hogging the cpu and i was almost to around 12 hours on a single charge with light use. however, i did a reboot at around 6pm and my battery read 45% before hand. after the reboot it read 10%. do you think it has something to do with the kernel? this is the second time a reboot has jacked up my battery.
Guys
I have been having the same problem and try lots of things but what I did not try and just found out is that my phone has a 1500mHa instead off a 1800mHa Sprint store made a mistake and placed the wrong battery inside my phone.
Maybe some of the problems you guys are having is due to that fact.
Besides opening the phone there are several app that will actually tell you which battery you have I.E. Battery Monitor
Hello guys...I am new to this community as i recently registered to XDA...but i know maybe a bit about our phone Galaxy W GT-i8150....That could prove useful to Starters......
Now...mostly Users have problems with battery when they flash new ROMS....the reason is....their battery stats...for example if a person flashed a new ROM with 60% of battery....the phone will detect 60% as 100% and battery will drain quickly.....but You guys don't need to worry as i have found some ways to rectify this problem....Battery Callibration...yes u need to callibrate your battery in order to get long lasting batteries....there are some ways of doing it...most easy is through an app found in play store....Battery Callibration by NéMa...you just need to charge ur phone at 100%....and go to app and click 'Callibrate' (with charger plugged on!) ...and this will reset ur battery stats....it is recommended (not necessary) to drain out all the battery after callibration and Charge ur phone from 0% to 100% without a gap....
As i am a newbie...so i cannot post outside links...however if anyone needs to get more of it...he/she can PM me at any time and i ll try my best to help...!
I hope this post would prove useful to all of you.....! :good:
I have that app. Never really used it lol what happens if I calibrated it like a 50 wouldn't that mess it up?? So technically it is necessary.. idk lol I'm def no noob but I don't quite understand this app. Batt life seems the same after I calibrate battery (last time I tried)
Anymore info!!?!?!?!
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You shouldn't uncharge your battery to 0%.
For calibrate your battery just charge it to 100%, shut down your phone, let it charge to 100% again, go to CWM, advanced, wipe battery stats, before wipe unplug USB cable.
I realize that..I'm just confused about this battery calibration. Doesn't make a difference for me..and yes I agree I never fully discharge me phone. Bad idea
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I don't know about the ROMs the op flashes, but if my battery is at 50% when I flash a new ROM it doesn't go to 100% more like between 47-50%.
Besides the fact that battery calibration has been explained away as a myth, I can also state "calibrating" battery has never increased my battery life.
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MiguelPT said:
You shouldn't uncharge your battery to 0%.
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Do you mean that using all of your battery (till 0% when the phone automatically turns off) is a bad idea?
Why?
Thanks
[.::MDT::.] said:
Do you mean that using all of your battery (till 0% when the phone automatically turns off) is a bad idea?
Why?
Thanks
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Yes, it's bad idea, because you have a Lithium-ion battery which as no memory effect.
Read this
Actually this app wipes your battery stats and makes a fresh copy of them...
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Well i wrote that for those users who have flashed stock rom and dont have or want CWM recovery...moreover it's just recommended...
And me and other users have experienced that the more roms we flash...the more battery life decreases....anyway if there is a better way...please do let me know...
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