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I was pondering possible reasons for the battery life problem that many of us are well aware of. Some peoples batterys will last a good day or two and then theres people like me who charge my phone in the morning and when i get home in the afternoon just to keep it alive and this is compared with people using the same rom. So i thought maybe there could be something to do with what the battery level is when the phone is rooted or a new rom flashed, and this process may reduce the battery cycle to a specific point. E.g. if i 1st root and load my new rom on my phone at 50%, when booted it could show 100% but its actually 50% than it should be. i have not tested this but im just putting it forward as an idea. if anyone does have the time to unroot, charge to 100% and then reroot their phone + custom rom and test the battery life could they please post their results here. No harm in trying ...
EDIT:It seems we have found a solution or alteast a way to greatly improve battery life by putting my random idea and the information from maxisma togethere.. here are the following steps:
1. When the battery is low e.g. 10% boot into recovery mode and wipe->battery data
2. Reboot and then drain the battery or let it die (turn on mobile network add the 'sync now' widget and keep syncing with the music on loud - works pretty fast)
3. Leaving the phone dead put it on charge and let it charge fully till the led indicates green (may take longer than normal)
4. UNPLUG!! the charger then boot the phone up and your battery life should be much better
TIP!! Remeber when changing and flashing new roms to unplug the phone from charge after you boot!
Hope this works for you all PM me for results (i went from 5-10% loss an hour to what is now about 1-2% max )
Nice idea but almost certain your wrong
Edit: turns out that you shouldn't boot your phone while charging after all
I've think it's more likely to do with how I charge my phone. If I charge the phone on my PC then the battery lasts me a day. On Sunday night I charged it with a mains charger, and a day and a half later I still have 40% left. That's with constant WiFi, Talk, calls and text messages.
Sometimes I'll do the same things mentioned above and the battery will be about 20% by the time I'm going to bed.
I could be very wrong, I'm no battery expert!
There shouldn't be any difference between PC charging and mains charging. The mains charger would utilise a transformer to give the same oomph as a PC gives...if not it'd fry the battery whilst charging.
Funnily enough, mains AC - DC transforms are a little choppy, although at such a low current it should be entirely negligible, but your PC's power supply should give a cleaner power output than the mains. Are you sure it isn't just a placebo, I still like to think charging my PSP via the mains rather than USB will do it quicker and last longer, since its dedicated
TheAshMan said:
I've think it's more likely to do with how I charge my phone. If I charge the phone on my PC then the battery lasts me a day. On Sunday night I charged it with a mains charger, and a day and a half later I still have 40% left. That's with constant WiFi, Talk, calls and text messages.
Sometimes I'll do the same things mentioned above and the battery will be about 20% by the time I'm going to bed.
I could be very wrong, I'm no battery expert!
Click to expand...
Click to collapse
I've heard this theory before. I can't even begin to fathom how this could be possible. I hereby dismiss it as 'rubbish'.
Seriously though, I think it's far more likely to be related to the apps/widgets people are using after flashing the rom. The only thing that differs drastically from build to build is the different apps that people install.
Might be worth those with very crap battery lives sending me an hours worth of logcat. I can do an hours worth of logcat for myself (I never have battery issues), and compare the results.
He's partly right.
Android has a bug that when it's plugged into a charger while booting up, it'll report a higher battery status than it actually is.
This is preventing the phone from charging the battery completely.
So, a recommendation for you: Always unplug your phone from the charger before powering it up.
Attempt
Since my last post ive drained my battery out. Kept the phone off and charged it fully. It did take longer than normal which could be a good thing. Ive booted it up about 15 mins ago and il post later/tomorrow about how the battery performs now.
WOOO
I maybe jumping the gun a bit here but my phone says an up time of 1hour 27 mins. and normally its about an hour to about 5-10% of battery life and im sorry to say... im still on 100% WOO . I will still report how this lasts through to tomorrow, however i think theres enough evidence to suggest that the method stated earlier seems to fix what seemed to be a 'shortend battery cycle'. Anyone else with a short battery life i advise you to do the same asi have and please feedback to me with any results.. hope this has been helpful
EDIT: Its been two hours now and still 100% woooo
I got escited too bratfink when I had 100% battery for ages while it was in sleep, then I dl'd a few progs from market and whoosh my battery started disappearing faster than expected. Try downloading a few things and you'll see your battry disappearing quicktime.
minfree or ramzswap off could be causing the issue.
I remember before I put that tweak on my phone (when it first came out), my battery life was amazing.
After I put the values in for init.d as from the forum page below:
http://forum.xda-developers.com/showthread.php?t=622666&page=6
the battery life started disappearing like mad! and this was on a modaco rom!
I think now that all the new 2.1 roms are including this minfree tweak it is causing this battery issue to be carried over. All attempts to reduce battery drain are not having as much effect as they could because of this.
I would like to try one of these new roms without the tweak but I do not have the knowhow to stop it. i.e. put the original init.d (or equivalent) for the the roms in place.
You might argue that the memory clearing has nothing to do with the battey drain, but what i saw was that it did on a modaco rom. I don't know whether it is the switching of ramzswap or the minfree settings ( i have a feeling it is both.
Can a chef cook one of their roms without the tweak and keep the original settings?
adb remount
adb shell rm /system/etc/init.d/02memkill
then reboot.
kendong2 said:
adb remount
adb shell rm /system/etc/init.d/02memkill
then reboot.
Click to expand...
Click to collapse
I'm on the BeHero v1.3.2,m will that command put my phone memory settings back to what they would normally be without the taskkiller?
If so can I just remove that file with OI file explorer as atm my laptop usb aint working (can't connect to phone properly, can only charge)
If you use Bluetooth, GPS*, or plug/unplug usb, CPU lock at 528Mhz and battery drain. This happend in all eris/roms.
I can see with Battery Graph while I sleep the battery is full, but no reason (only unlock to check time, kill alarms, read mail,...) the battery drains constantly. (no tweeter, no facebook, no GPS, no BT,..),
This kernel sucks. It's very buggy but is what is
kendong2 said:
adb remount
adb shell rm /system/etc/init.d/02memkill
then reboot.
Click to expand...
Click to collapse
It's OK managed to fix the usb on my laptop.
I am currently performing the third step...i really hope this works cuz I am getting really really horrible battery life right now...I get only about 8 hours with ocassional use...like listening to music, browsing, taking pictures, sms.
thanks for posting this thread.
Ill post the results tomorrow ( hopefully positive)
I noticed that using the overclock widget (even with the lower clock option when screen is off) also eats some battery, it definitely reduced my usage time on Android 1.5.
Could someone confirm?
I dont know what it is and why people have this bad battery drain.
I have the VillainRom 3.4 installed. Totally NO drain. I turned on Bluetooth and called several times. Battery drain is 8% in 12 hours .
I did not install any widgets. Pure standard custom ROM with newest radio.
Leeejohn said:
I dont know what it is and why people have this bad battery drain.
I have the VillainRom 3.4 installed. Totally NO drain. I turned on Bluetooth and called several times. Battery drain is 8% in 12 hours .
I did not install any widgets. Pure standard custom ROM with newest radio.
Click to expand...
Click to collapse
exactly my view.
I'm using HeroDroid and i had really bad battery drain problem. I'm a sort of heavy user and with bluetooth & gps permantly on, my phone had drained out by lunch time. After doing some tests, i have found that my problem was related to GPS. If i boot my phone with GPS off and left it at off, i get the same battery level usage as my original cupcake 1.5 ROM. Perharps you guys can try it and post your results.
rubik said:
I'm using HeroDroid and i had really bad battery drain problem. I'm a sort of heavy user and with bluetooth & gps permantly on, my phone had drained out by lunch time. After doing some tests, i have found that my problem was related to GPS. If i boot my phone with GPS off and left it at off, i get the same battery level usage as my original cupcake 1.5 ROM. Perharps you guys can try it and post your results.
Click to expand...
Click to collapse
I found that to help as well. In the last 3h10m it only went down by 4%. That's definitely a lot better than what I was getting before and with the previous ROM. I am using the new Autokiller and Overclock widget if that helps any and booted up with my GPS off and followed the steps mentioned in the first post.
hmm if its the case that the phone is "capping" the maximum amount of charge the phone can have then it should take longer to charge also
my battery life i kinda okay, lasts 10-12 hours with intermediate use, using battey graph app it took me 70 mins to charge from 40% to 100%
ill let it drain out tonight and see how long it takes for a full charge
it would be good if we could compare results with people with and without battery problems
Samsung GT-T5800. Android OS 2.1-update 1, I5800XXJH1, Kernel 2.6.29 root SE-S603 #2.
The problem:
1. Battery till 50% discharges normally - about 10-15% per day, but after 50% it immediately shows 15% and asks to connect charger and phone switches off very fast. actually no chance to mane even emergency call. No 40%, no 30%, no 20% in battery level.
2. When connect phone to charger - battery charging level immediately set to 80% or every ~10 seconds: 50%, 60%, 70%, 80%. After that phone charges about 1,5-2 hours till 100% and after about 1-2hours it asks to disconnect from the charger. Battery temperature during charging and after it: 31-33C.
After 3d 8h 40min. (~80hours using applications: Battery booster and Memory Booster, no 3G) of battery usage phone switches off.
Battery usage was:
Android system: 61%
Cell Standby: 19%
Phone Idle: 12%
Bluetooth: 4%
Voice calls: 4%
Time from 15% to 5% - 15 minutes with no using the phone. Battery's temperature 20C, Voltage: 3588mV Phone switches off. I have tried 2-3 times to switch on the phone to make battery more empty and finally switched it on and at the same time connected it to charger.
Here is the interesting charging time line after phone died and was switched on to charge it (sorry - no in seconds):
0:00 - 1% - 20C/3588mV (temperature/voltage)
0:01 - 3%
0:01 - 5%
0:01 - 15%
0:02 - 15%
0:03 - 30%
0:03 - 40%
0:04 - 30%
0:05 - 15%
0:07 - 15%
0:09 - 30%
0:12 - 40%
0:14 - 30%
0:15 - 15%
0:16 - 30% - 28C/3698mV
0:18 - 40% - 28C/3718mV
0:20 - 50% - 28C/3730mV
0:21 - 40% - 28C/3727mV
0:23 - 50% - 27C/3728mV
0:36 - 60% -
0:36 - 50% - 26C/3769mV
0:37 - 60% - 26C/3774mV
0:59 - 60% - 26C/3807mV
1:24 - 60% - 26C/3807mV
2:06 - 70%
2:07 - 80% - 26C/3906mV
2:44 - 90% - 26C/3971mV
3:18 -100% - 25C/4101mV
4:03 -100% - 22C/4184mV - Asked to disconnect the charger.
After this charge GT-I5800 (with no any software changes) stoped to show 50% to 15%, but 30% disappears fast to 15% (it means one short call).
Possible that battery issue reason is that (I think) phone was charged partly switched off and partly switched on.
Maybe there are some battery level controlling OS software bugs, I do not know.
Is it official bug or issue?
Or some guru can comment that battery level issue? I saw I was not first user having it.
should be from the firmware
it seems this happening to all
Well i also have exactly the same issue...
I have observed that when i make/recieve a call the battery voltage decreases greatly because of which the battery also decreases and after sometime the battery voltage comes back to normal but NOT the battery.
My battery also drops down from 50% to 15% or 5%.....It's really very annoying...
I think that this is a frimware issue but i am not sure..I am scared that it could be a hardware issue...
Well i have mailed Samsung also regarding this issue so that they fix this issue in the next frimware upgrade and hope others also do the same so that we have a better chance of this bug getting fixed.....!!!
pravarthegreatest said:
Well i also have exactly the same issue...
I have observed that when i make/recieve a call the battery voltage decreases greatly because of which the battery also decreases and after sometime the battery voltage comes back to normal but NOT the battery.
My battery also drops down from 50% to 15% or 5%.....It's really very annoying...
I think that this is a frimware issue but i am not sure..I am scared that it could be a hardware issue...
Well i have mailed Samsung also regarding this issue so that they fix this issue in the next frimware upgrade and hope others also do the same so that we have a better chance of this bug getting fixed.....!!!
Click to expand...
Click to collapse
And when I switch off / on the phone then it shows probably correct vallue. For an example. It shows me 15% and after restart it is 60 %. What a stupid bug - I've never have this problem with any device before. Even phones 10 years ago were able to show correct battery status. I think this problem was also with original 2.1 android firmware.
Can someone who has upgraded to froyo pl. confirm that this issue is resolved in the new firmware?
Sent from my GT-I5801 using XDA App
TekkenLaw said:
Can someone who has upgraded to froyo pl. confirm that this issue is resolved in the new firmware?
Sent from my GT-I5801 using XDA App
Click to expand...
Click to collapse
yes, in JP9 / froyo is still this battery problem. When I switch on / off the phone then it's ok. Does someone resolved this issue please ?
My issue still exists. Froyo did not help. Also I can't understand why does one time on charging battery becomes hot, another time -cold.
same for me, and today i charged my phone and after charging just put it on my table after 1h i saw that there are only 80%. Didn't see this on other firmwares
Same here. I thought it is because of my battery manager widget which I had installed, but un-installing/master clear also did not help. Looks like it is major problem. Moreover, few of the battery widgets mention that in some devices they report 1% level battery change, but in Samsung I5801, it will be 10%.
what about this issue at JPA ?
when you was installing JPA did you hard reset your phone ? (factory settings)
If yes which application do you use for restore all of the datas and settigns ?
Yes, it was done. Hard reset seems is not related, and did not help.
Same problem here...
Since built in battery meter is not accurate at all Im using custom one but problem remains.
might fix battery issue.
might work...saw it for Epic 4g and gave it a shot (as its Samsung too). Some sites say LiON do not have memory like NiCd did but somehow it worked for me. Now I stay on 100% for 5hrs or so. lasting 2 days with 45mins call time and some Wifi use. Like today charged full 100% at 9AM and now its 2230 and I have 80%.I have switched off a lot of things. See below.
http://androidforums.com/epic-4g-tips-tricks/171804-recalibrating-battery.html
http://forum.xda-developers.com/showthread.php?t=701567
Above needs to be done once only. If it doesn't work then go to service center. Remember battery has 6 months warranty only so be quick and try above on new battery.
I also run LauncherPro instead of stock. Disabled data and enable when out of AP range (only use Wifi when needed and have an AP). Background data/synch is always off unless I use market. All apps are set to never except Gmail. Use K9 Email too and ATK. Am on DDj6 FM. Have removed a lot of apps, foursquare included and run 2 screen with LauncherPro widgets only.
Settings to switch off are here.
http://jvoegele.blogspot.com/2010/10/how-to-improve-battery-life-for-samsung.html
http://www.wonderhowto.com/how-to-hack-your-htc-evo-4g-increase-battery-life-373058/
afalak said:
might work...saw it for Epic 4g and gave it a shot (as its Samsung too). Some sites say LiON do not have memory like NiCd did but somehow it worked for me. Now I stay on 100% for 5hrs or so. lasting 2 days with 45mins call time and some Wifi use. Like today charged full 100% at 9AM and now its 2230 and I have 80%.I have switched off a lot of things. See below.
Click to expand...
Click to collapse
As long as I know li ion batteries doesnt have the memory effect but they still have to be recalibrated from time to time, lets say once a month. That means dont charge the phone until it goes off and then charge to the top.
I wasnt willing to wait for 11 hours for phone to charge when I bought it and after few days I ve notice that battery last very short. After that I ve performed the full cycle (drain to the bottom - when phone turn itself off, then after few minutes turn it on, wait until it goes off - repeat few times until its completely off then charge it fully - I usually turn off the phone while charging ).
As long as I know all modern devices like phones, notebooks etc shut down before the battery is completely drained because they want to have safe margin of the battery power because of, as long as I know, when li ion batteries become completely drained then could be damaged completely so you cant recharge them again. Anyway with that "turn on then its drained" I believe that I use the battery more than normal and that phone will recalibrate to the new situation figuring that battery have more voltage than phone "expected".
Anyway with few recharging cycles like those I ve described above I can use the phone now for a 2 days with moderate usage...
That 50-15 problem still exist but 100% period last quite long and also phone can be used a long time from the moment battery reach 15% ...
Try doing it the other way round!
Keep your device on constant charge or at least as much as possible for 10 days from new and you should have now problem.
I have run tests on Lion powered devices for the past 5 years and I have never had to "calibrate" once.
My battery usage is always consistent and seemingly accurate.
And this method encourages max power from the battery.
Sent from my Ideos S7 using XDA App
i just flashed my I5801 with Froyo (XXJPB and then XXJPA), but having very low battery back up, can anyone advice something which can help boosting the performance of the battery? Please help.
After 8.5 hrs of sleep I woke up to only 77% battery and when I went to bed it was at 100%... so with ZERO use of the phone it dropped 23%.. seems like a lot to me but is this normal for everyone? I'm running DJ05, Superclean .7, the stable version of geekniks kernel..
If I don't set airplane mode when I go to sleep at night, after 8 hours I will have lost anywhere from 20-30% of my battery. I have terrible coverage at my place, so that is the reason that is causing it. It's not nearly as bad if I turn off sync, but still drops >10%. In airplane mode though, I lost 2-3% over 8 hours last night.
I'm having the same problem, even at work if I take my phone off at full charge and just let it sit, 3hrs later its down 20%. and that's with me not touching it. I'm running the same thing
I turn auto-sync off at night and go to bed with 97% and wake up with 94%. I had battery issues with the xda app before though SEE HERE. No one else seems to have noticed this and it even contiued into DJ05. Might be something to look into or you might discover what is killing you.
good day.
Wipe the battery stats after flashing a kernel or rom. But before you do that, charge the phone to 100%. After wiping battery stats, disconnect the charger and use the phone regularly and let it die out. Then charge it back to 100%, not turning it on. This is a battery calibration, and I always do this after flashing a kernel. I've had instances where I've had the battery go down 1% during the night after doing this.
Rockin' DJ05, Minimal Icognito, Clocked at 1.3Ghz
Eh, it's a bit surprising that display took up 40% while your phone was supposedly asleep; maybe something woke it up during the night and turned the screen on.
That's about what I get over night, but i'm using a not using a custom kernel.
try a different kernel
after trying every kernel available, ive ended up with jt's 11/29 kernel being the absolute best on battery life. im getting around 30 hours with normal use, all other kernels seem to last 12-14 on my phone.
I turned off auto sync and only lost 10%.. So that helped, I also just installed a new kernel so we well see how that runs too..
Sent from my SCH-I500 using XDA App
did the battery calibration and I have had the phone off the charger and using it for about an hour now and it only dropped one percent so far..usually it would be like 15 percent
SCH-I500 - DJ05/SuperClean .9/Nemesis OTB 1200lv/Voodoo5/Darkstar
*228 option 2 happened to me 3 weeks ago
Edit also erase battery stats
Sent from my SCH-I500 using XDA App
One improvement I have noticed in the battery is it cut off about 1/3 of the time to get a charge.. In about 2 hours I went from 23% to 85% (with the phone running) and there is no way I would have been able to do that when I was running DI01.. IDK if it has anything to do with with the ROM, Kernel, or the fact that I'm on DJ05 but ever since I updated my charge time was cut by 1/3..
Hi there,
as you can see at the screenshot, there is about 3 to 6 Percent CPU Activity, no Device usage and the Battery drained from 100 down to 70% over night. I tried it with
1)Battery Doc (cycle charge)
2)Delete the battery history, and did this
1.Turn your device ON and Charge the device for 8 hours or more
2.Unplug the device and Turn the phone OFF and charge for 1 hour
3.Unplug the device Turn ON wait 2 minutes and Turn OFF and charge for one hour
it looks like that this is normal, right ?
Thanks for your help
what is your time without service? Settings > About Phone > Battery Use > Cell Standby
Thx for the quick response, it is 37%. "Witout service" means, the phone tries to find a signal, or some kind of "sleep mode" ?
rebirthan1x said:
Thx for the quick response, it is 37%. "Witout service" means, the phone tries to find a signal, or some kind of "sleep mode" ?
Click to expand...
Click to collapse
It means that it's trying to find a signal. The more it tries to find a signal, the more the battery drains. Try putting it into airplane mode at night, probably will only have a few % lost on the battery then.
Actually it won't matter if you use a custom rom or kernel, smartphone these days will lose battery like crazy if you use heavy net data. I have DX and Droid2, they are the same way with froyo.
Also in case those of who didn't know, whenever you flash a rom, you automatically wipe your battery stats and others.
You definitely shouldn't wipe battery stats when you are on the midway. You should wipe either at nearly dying or completely full. However, wiping battery only "recalibrates," it does not increase the actual battery juice.
Different ROMs/kernels can help you minimize the battery drain as much as possible though by limiting how much is used by the cpu or background apps accessing the net.
imnuts said:
Different ROMs/kernels can help you minimize the battery drain as much as possible though by limiting how much is used by the cpu or background apps accessing the net.
Click to expand...
Click to collapse
Actually no. Different roms have all the same basic data usage, basic google auto-sync. Roms can't control what or how much data will be used by an app. Kernels also can't control how much net data will be utilized. Kernels can shutoff apps based on complier/lowmemkiller fix but that is based on the memory status, not net data usage.
What is the app's name for the battery usage percentage?
Sent from my SCH-I500 using XDA App
Yes, it's really official , my battery life is draining like hell... I actually hope that's a battery problem or a rom problem so i could fix it cheaply, but if it is about the phone , i'm messed up .
so here it goes, i've got that htc hero i've bought from a friend so im not entirely sure if the battery is well, at least it was when it came on my hands. I had the official rom, and i cant be sure how many time did it spend without charging because i did change immediately the ROM . Now i have froydvillain 1.7.2 installed and i can say that i putted my phone on charge before i went to bed, when i woke up there was 15% gone from the battery, not so bad, i guess.. the worse became after. i did the usually stuff with it, texting, one or two calls not so much, always not using wi-fi, bluetooth or anything like that at all. not listening to music... when i arrived home there was been 16 h and 20 min and the battery was totally off. when i checked up which program was affecting battery most, and it was the screen and it was taxed as 51% of utilisation, i dont know why , there was just 1 h and 30 min of using it, and i can say the my brightness settings are automatic. Im really getting crazy, i also turned of 3g, only using 2g now to save battery, what a mess here guys. any help ?????
Model - HTC Hero
Android Version - 2.2.1
Radio - 63.18.55.06PU_6.35.15.14
Kernel - 2.6.29.6-flykernel-12a
ROM - FroydVillain 1.7.2
I have installed elelinux 6.2.0 wifi always on if not connected to 3g.screen at 8% !no bluetooth,no gps...just 2 calls,whattsapp texting and surfing during the day.100% at 8 am 50% at least in the evening.try this.as far as i know there is no memory effect with these batteries.
Try my settings or delete apps that work in the background.
Hope this helps
Sent from my HTC Hero using XDA App
Battery Calibration
Hi there,
I have 1.7.2 also and I get approx 2 days of battery life before it hits 15%. Light usage though. My display usage always seems to be approx 30-50% overall so don't worry about that just yet.
What i think you need to do is calibrate the battery.
http://forum.xda-developers.com/wiki/index.php?title=Battery_Calibration
Do that and once you are on full charge, before you turn on your phone boot into recovery and wipe battery stats.
Should be all good .
Also are you running any overclock? 352-576 is more than okay and should help with battery life... Most people run it on smartass but I get screen wake-up issues with it so run it on-demand.
Give that a go then if that doesn't work come back and ask some of the smarter people for some advice as thats about all i know about battery issues.
i had setcpu installed with some settings, i already uninstalled it, i believe the settings were switched off , thats what i hope..
anyway , my battery is fully charged in 2 hours, is it normal ? it could be cracked, perfectly normal i guess. sometimes when im connected to wi-fi , it starts decreasing the battery level and i watch it lol, 71 , 70 , 69.... thats really strange in due that i see people using 2 days or 3 with normal usage. i believe that's nothing about the rom, im going to do that , im going to calibrate and wipe, text u as soon as possible to tell u the results
9unk, should i use the setcpu with those setting to save battery, im order to obligate te phone to use those settings, or should i just let it default ?
How did this survive in /dev
Also check any background processes.
My hero sometimes just drains like hell untill restart it (as I haven't found out which app yet) .
i believe there are no background apps , but if there is , how could i close it ?
Try calibrating your battery. VillainRom have a guide on it in their guides section.
Paulopax said:
i had setcpu installed with some settings, i already uninstalled it, i believe the settings were switched off , thats what i hope..
anyway , my battery is fully charged in 2 hours, is it normal ? it could be cracked, perfectly normal i guess. sometimes when im connected to wi-fi , it starts decreasing the battery level and i watch it lol, 71 , 70 , 69.... thats really strange in due that i see people using 2 days or 3 with normal usage. i believe that's nothing about the rom, im going to do that , im going to calibrate and wipe, text u as soon as possible to tell u the results
Click to expand...
Click to collapse
i just want to note something, here you say you are fully charge in 2 hours, thats strange, mine are 4-5hours charge before its full.
in my experience with all is ON, i got 14 hours of battery life, this what i turn on:
- 3G Data is always on, no time schedule, it on all the time.
- Mail (3 account) and Gmail (1 account), (always on, with 15mnt refresh freq)
- Gtalk and Yahoo messenger (always on, cant live w/o it)
- LauncherPro Friends Widget (Facebook and Twitter, always on, with 15mnt refresh freq)
- Weather with Fancy Widget (always on, with 1hour refresh freq)
- Battery Widget
- Game NFS Shift 3D (15mnt a day, is a must, very love the game)
- Browsing (average 2 hours a day)
- and other normal process and background process (network location, contact sync, etc)
can you describe what is you use in your phone and please detail how much hours you get with your hero??
Mine was also draining like a hell , but i let it switch off for one day and now it works great . try that might it will help you
I had similar problems. Very frustrating indeed, but easily corrected.
Calibrate your battery using the above thread. Usually this takes a while, but sounds like it will be quick for you. Follow it closely and carefully.
Install setcpu and start with a conservative governor at 576/176. That alone should give you a day between charges. Play with these settings until you find something you're comfortable with.
Sent from my HTC Hero using XDA App
about the screen, i have 5 screens, one has the calendar with my schedule dates, other has youtube and music app, the main one has beautiful widgets that only update 3 in 3 hours, the other has people widget and last one has just power control widget. I believe this is not too much, for instance i already calibrated my battery and look at my stats today :
Activity time : around 17h
apps tha use battery most :
display 41% (45m e 25s);
inactivity of the phone 18% ( 15h e 30 min )
inactived phone 16% (14h e 44 min )
Media Server 11% (14min e 53 s)
the best of this is when im texting there is nothing about the battery when i start to listen to music i can watch my battery drainly constantly, like 59,58,57 per minute sensivily. is there anyway that my battery is cracked or something ? or is just my settings ? i believe i have set all up to save power, i also set up my screen to minimum stats. another thing that i might let clear is that my phone really charges all up from 0 to 100 in 2 hours, really strange that sometime it stucks on 77 for instance other times is draining and draining and it kills me watching other people using 2 days battery with more apps than me
i dont know if this is important or not , my battery drains 6 % on rebooting , dont know if it is normal or not, but im totally sure , aint normal to got all the battery drain in 17 hours with normal using... please i appreciate any kind of help
If you had calibrated your battery, and if you already had uninstalled all the apps that drain your battery quickly, but still no improvements, I suggest you to try the following things:
_ Change rom (I had a lot of problems too with battery life on FroydVillain, I personally recommend Elelinux 6.2 RC, I got an amazing battery life)
_ Make sure you have Update your Radio to the latest version:
http://www.villainrom.co.uk/forum/s...adio-Roms-Download-Links&highlight=hero+radio
_ Try different Kernels, if you are currently overclocking your Phone, I use flykernel 12a, but the 11c is excellent as well for battery life
_ Use sometimes, not set it automatically, some task killer like Advanced task Killer Froyo from the market, to kill sometimes too many running apps.
Make sure to flash the new rom when your battery is full, then recalibrate it again like other suggest you already on this thread.
I personally notice that, when you calibrate your battery, takes a week or more to see improvements on the battery life, so be patient!
Its good as well to restart your new rom fews times to reach the full potential...
Then, when you set up your rom for the first time DISABLE google backup, I've been told that drains battery like hell, don't set the brightness on automatic mode, but just leave it as less as you can, it will helps.
It would be better also to go to setting, under sync, and leave on the automatic sync mode only for the apps that you really need to run..
If none of this will work, if you have can, I would think to buy a new battery, I checked in an official HTC store once and I found it at 30 pounds...
I don't think I have anymore suggestions, I hope it will help you...
Paulopax said:
i believe there are no background apps , but if there is , how could i close it ?
Click to expand...
Click to collapse
To close an app or clear cache or data go to:
settings>applications>manage applications>running>
and choose the apps you want to close..
I found a major battery killer is an area with no reception.
So if I know I'll be there a while, I'll put my phone on airplane mode to stop it constantly scanning for a signal.
Today i really noticed something strange about battery, i let it charge when it was off. Ive turnee it on, browsed over the internet and it was stuck at 100 % for 30 minutes, than it decreased for 96 in 5 min..
i went to sleep ( turned wifi off ) 6 hours later it was in 77 % ;( and the best part, i reboot it and it get in 51 someone got a help
Paulopax said:
Today i really noticed something strange about battery, i let it charge when it was off. Ive turnee it on, browsed over the internet and it was stuck at 100 % for 30 minutes, than it decreased for 96 in 5 min..
i went to sleep ( turned wifi off ) 6 hours later it was in 77 % ;( and the best part, i reboot it and it get in 51 someone got a help
Click to expand...
Click to collapse
That sounds about normal for most ROMs I've used
guys i have been getting very poor battery after i flashed my phone multiple times on a day...
i already tried the calibration app but it did nothing....
now how to wipe battery stats manually??
http://lmgtfy.com/?q=android+wipe+battery+stats+manually
http://forum.xda-developers.com/showpost.php?p=12697960&postcount=3
clarkkov said:
I love lmgtfy! makes me laugh every time!
[email protected]:
When you recalibrate your battery, it takes a few life cycles for the battery to stabilize and for Android to get an accurate reading. First life cycle is alway short. Of course, don't play with ROMs so much it may damage your phones read only memory.
I will post my battery life soon, I'm still waiting for the battery to deplete, I haven't recharged my phone in 4 days now after I calibrated my battery.
Click to expand...
Click to collapse
Wow 4days is huge,iam getting hardly 1day battery after calibrating yesterday....
Actually i removed my phone before getting the 100% notification....
So should i wait for battery to improve???
By the way,when did you calibrate???
Should i calibrate again????
If this wont work i will try terminal emulator method...
So in this method do we need to charge 100% or discharge completely??
Some precautions or just write those commands at any point of charge???
Iam wondering how to thank from the xda app
Thnx to both of u
Sent from my GT-I5801
Same problem here.
Battery drained from 100% to 60% in 3 hours, then to 15% after 5 hours. phone super hot! Widget showed temp 42°C !
Not even used the phone for more than 15 min! REALLY!
Then calibrated before 3 days, now a max of 1 day battery backup only.
Plz help.
And 1 life cycle means I must let the phone charge 100% then let it discharge till it's switched off.
And I should repeat the cycle.correct me if I am wrong.
And I have the habit of not charging to 100% in a single charge session, 2-3 breaks, should I change it?
clarkkov said:
If your phone is hot without you using it, something is running in the background, that shouldn't. Which ROM are you using and which tweaks/fixes have you applied?
One battery life cycle means battery drain from 100% (fully charged) to 1% (fully discharged). Your phone does not have to turn itself off, but make sure it is at 1% when you begin to charge it again. This is important only for a few cycles after calibration, afterwards you are free to charge it as you wish, but while calibrating it's highly recommended that you don't interrupt the charging process (4Hrs).
Click to expand...
Click to collapse
I am using rooted jpd from samfirmware, no fixes except sdcard speed fix, previously it used to give a good battery backup.
And apps do run in background.
Should I set autokill level to high in task killer?
And I will take care of charging.
Thanks for support.
on DDJP2.. getting a horrible backup since i have updated thru KIES. generally on jg6 used to get almost 1.5 days which has come down to 12-16 hours now. trying to calibrate my battery with app 'battery calibration'.. calibrated once.. but still no change. read somewhr that we get the same backup for first few times even after calibrating.. but to get sure i am writing down my process.. plz chk if m doing right or not ..
1. plug in phone with charger
2. wait till 100%.
3. press battery calibration or delete batterystat.bin with the help of root explorer.
4. unplug charger and use it till it discharges completely.
5. charge again to 100%.
plzzzz chk and tell.
plzz someone reply.
I have a question about batery drain. Apps on backgroung are drainning lot of batery? May i have to stop them always?
Send from my Lestatious 1.7 using XDA premium
clarkkov said:
Yes.
You need to be aware that wireless services are draining the battery the most. If you are not using 3G - switch it off, same with BT and WIFI. Widgets that update frequently also drain the battery fast, background data, auto sync services/features are battery killers, too.
Click to expand...
Click to collapse
Thanx for the reply.. i have calibrated once more.. but already showing 80% after hardly 2 hrs.. no clue whats going on... ppl with JP2 shud come up with thr battery backup to get confirmed.
and last thing am waiting for is that someone said .. battery life is worse for first few cycles after the calibration... thats the last hope... :'(
clarkkov said:
Yes.
You need to be aware that wireless services are draining the battery the most. If you are not using 3G - switch it off, same with BT and WIFI. Widgets that update frequently also drain the battery fast, background data, auto sync services/features are battery killers, too.
Sent from the other side
Click to expand...
Click to collapse
Thx for the aswer, i thought that all the background data are drain lot of battery. I'll try to calibrate and switch off all the thing i can and see if my battery lives more time
Hey there,
scince I use BatteryLeftWidget, I can see that my battery voltage only reches 4171mVolt.
So, batterystat.bin delete doesnt help, so anyone an idea where to put the 4200mV ?