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Hello, I`m new to this forum and wanted to ask if anyone knows why my HTC Legend drains battery so fast. My phone is rooted with Fuse ROM and unlocked bootloader but it was draining battery on stock ROM too. Even with the screen of it drains ( in 8 hours with screen off it drains almost 10%). I have 3G connection on all the time and when I`m at home i don`t have full signal in the house so it may be a network problem that affects the battery?
a weak network signal may be one reason for the battery drain (since your phone has to use more power to send data).
however when there's always synchronisation & exchange of background data going on in the background, i think 10% battery down in 8 hours isn't way out of the ordinary.
maybe you'll get some clue, what components are causing the drain when you go to settings > about phone > battery info...
Best solution to stop battery drain is turn every thing off if you're not using it eg GPS, wifi, Bluetooth, mobile data, auto sync, if you have them on they will chew up power.
On a stock legend, HTC would seam to have the CPU speeds set at 480 low and 600 for high, if you root and set your lower value to lower than 480 that will also help in cyanogen lowest value is 245.76, this seams to be ok, on other roms they can go as low as 19, this is not so good as phone can sometimes freeze. I never go below 122.
sent from my legend, currently using extream legend fuse™
My HTC legend battery life is 2 days. But I enable internet access only when I want, same for gps
Have you tried to calibrate your battery after installing custom ROM? Try the free battery calibration app from the market.
I'm using "[ROM] B 0.8.4 based on stock HTC FroYo (04/13/2011)".
Using the stock speeds the battery drain is quite fast, I get a day at best. I'm running 245 - 804 and this makes the battery last days. I'll try down to 122 to get a tiny bit longer battery life
vyper2100 said:
Hello, I`m new to this forum and wanted to ask if anyone knows why my HTC Legend drains battery so fast. My phone is rooted with Fuse ROM and unlocked bootloader but it was draining battery on stock ROM too. Even with the screen of it drains ( in 8 hours with screen off it drains almost 10%). I have 3G connection on all the time and when I`m at home i don`t have full signal in the house so it may be a network problem that affects the battery?
Click to expand...
Click to collapse
it is a common problem... as long as your phone signal is not dropping to completely zero that it goes for finding alternative networks its fine.. but if it is dropping blank .. try using airplane mode (ya no other option )
or else as a quick thing try below options
- try installing infolifes battery defender (tweak their ignore list if required). along with their advanced task killer (jst set for auto kill when screen off and not interval kill
- get a cpu governor (I was using cyanogenmod inbuilt one) and set in conservative a low-400mhz and high-600mhz
-turn off auto brightness if u've it on and use it in low as required
hope these should squeeze some more extra standby time..
I went back to a stock rom after putting up with the battery issues.
a friend told me that there's a .bat file that helps with the battery issue, but I haven't been able to find it anywhere.
I also had freezing problems when I tried to adjust CPU settings, so my best option was to bake a rom through modaco without all the bloat crap.
Now it works a treat.. hope this helps
Bat files are for windows computers, not used on android....
However your friend might be talking about the "battery.stats" file deleting it is supposed to help "calibrate" your battery, I personally have not seen any benefit to battery life doing this. Once your phone goes flat (turns off) and you then fully charge it it seams to set the calibration automatically. The only way I can see it actually helping if your a phone user that never let's the phone go flat enough to turn its self off.
Sent from my legend using XDA
IMO, battery life isn't bad on the HTC Legend if we compare it to High End phones. But there are ways to save it.
Ceebs typing the whole thing so I might as well link it to you from a similar topic: http://forum.xda-developers.com/showthread.php?t=1586022
Cheers ranger.
I asked him about it, and it was a .bat file that is used through the adb and he didn't say where he got his information.
Removing the battery stats file can be done with an app from the play store, and that wasn't anywhere near as effective as the move from cyanogen 7 back to the baked stock HTC rom.
Sent from my HTC One X using XDA
Hie guys, I just woke today to see my phone was off and when I switched it on the battery was @17%, from the battery stats in settings it shows my phone switched off after 2hours of me sleeping. So what can really make a phone lose 74% battery whilst it's OFF??!!
Help me or you can paste me a link to where similar problems have been discussed.
Thanx.
Sent from my GT-I9100 using XDA
Search function?
Quinch19 said:
Hie guys, I just woke today to see my phone was off and when I switched it on the battery was @17%, from the battery stats in settings it shows my phone switched off after 2hours of me sleeping. So what can really make a phone lose 74% battery whilst it's OFF??!!
Help me or you can paste me a link to where similar problems have been discussed.
Thanx.
Sent from my GT-I9100 using XDA
Click to expand...
Click to collapse
Download a battery calibration tool off the market and use it, I have had this happen to me before where i would lose over 50% of battery life just by restarting my phone, and it would gradually go back up.
Also check if their are any updates for your rom and os you are running
dark__chaos said:
Download a battery calibration tool off the market and use it, I have had this happen to me before where i would lose over 50% of battery life just by restarting my phone, and it would gradually go back up.
Also check if their are any updates for your rom and os you are running
Click to expand...
Click to collapse
Probably a pointless exercise since it's been proven you can't "calibrate" the battery in an S2.
I've had something similar happen, I was raping my battery with a torch app then restarted. Before the restart I had about 90%, after it was around 30%.
Could it be a sign of the battery failing? I've not had any real problems otherwise..
Perhaps you have wake locks? Purchase better battery stats or download it using the search button.
A high battery drain is often a limiting factor for a great user experience.
With BetterBatteryStats you can analyse the behavior of your phone, find applications causing the phone to drain battery while it is supposed to be asleep and measure the effect of corrective actions:
- Spot drainers based on detailed information about the root cause
- Use the online Knowledge-Base to find how to reduce or remove the wakelocks
- measure the effect of actions to reduce drain
- detect changes in the awake/sleep profile and quickly find the causes (rogue apps)
hi
is it required to battery caliberate after flashing new rom?
and when ever i reboot my system either battery jumps from 10% to 30 or more
or becomes less than 10%..
if i should then which app should i use?
any guidnace
plz
TY
No such thing. After you flash a new rom, charge the phone to 100%, turn it off, remove the battery for 30 seconds, replace the battery, turn phone on, enjoy.
Anyone selling you the whole calibration thing is selling you voodoo.
hi
thanks for your reply
plz suggest me best battery app with battery saving feature , suggestion on what we can do with remaining battery , expected full time charge , complete graph or battery usage history by apps?
paid or free , tell me best one
thank you
There's lots of battery apps on Google Play, there's no such thing as the best one, go have a look under the Tools section in Apps (you'll also find some under productivity). Stay away from apps like Juice Defender that claim to save you battery by doing things automatically which you can do yourself in two seconds, these have been proven time & again on XDA to use more juice than they save.
ivl try battery monitor
thank you
No probs ;-)
MistahBungle said:
No such thing. After you flash a new rom, charge the phone to 100%, turn it off, remove the battery for 30 seconds, replace the battery, turn phone on, enjoy.
Anyone selling you the whole calibration thing is selling you voodoo.
Click to expand...
Click to collapse
Wouldn't that procedure above be considered calibrating the battery? LOL. J/K. Couldn't resist .
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
@up
actually it cannot. this way you only help the system in your phone recognize full capacity of battery (which is not even full because not one battery works at it's full capacity - but it's fullest you will get at this point of your battery life). when it's about calibrating - listen to MistahBungle - it's all voodoo. you cannot calibrate li-ion battery unless you kill it and then revive. by killing it I don't mean depleting it in your phone, because even when phone shows the battery is fully depleted it's really not - there is still some juice in it. you'd have to use e.g. special charger which can drawn juice out of battery and make it really empty. only then your battery is dead and useless. you may revive it by applying cca. 5V but actually it not always works. so you cannot calibrate your battery in home environment.
what you can do is "re-calibrating" so called fuel gauge (description under links given below) and you may also help your system recognize the real state of your battery charge. sometimes it happens that systems readings are wrong and battery is on 85% but system is reading it as 50 or 100%. to help it read battery chip correctly you do the thing MistahBungle so helpfully described. sometimes you even don't have to do it but wait 2-3 charging cycles and system will adjust it's reading itself. by charging cycles I mean charging like from 20-100%. why not from 0%? because even if it's not a real depletion state, li-ion batteries doesn't like the state of being discharged too much.
more on this and lot of other helpfull information you will find here:
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
http://www.androidpolice.com/2010/1...bump-charging-and-inconsistent-battery-drain/
gaeilge said:
@up
actually it cannot. this way you only help the system in your phone recognize full capacity of battery (which is not even full because not one battery works at it's full capacity - but it's fullest you will get at this point of your battery life). when it's about calibrating - listen to MistahBungle - it's all voodoo. you cannot calibrate li-ion battery unless you kill it and then revive. by killing it I don't mean depleting it in your phone, because even when phone shows the battery is fully depleted it's really not - there is still some juice in it. you'd have to use e.g. special charger which can drawn juice out of battery and make it really empty. only then your battery is dead and useless. you may revive it by applying cca. 5V but actually it not always works. so you cannot calibrate your battery in home environment.
what you can do is "re-calibrating" so called fuel gauge (description under links given below) and you may also help your system recognize the real state of your battery charge. sometimes it happens that systems readings are wrong and battery is on 85% but system is reading it as 50 or 100%. to help it read battery chip correctly you do the thing MistahBungle so helpfully described. sometimes you even don't have to do it but wait 2-3 charging cycles and system will adjust it's reading itself. by charging cycles I mean charging like from 20-100%. why not from 0%? because even if it's not a real depletion state, li-ion batteries doesn't like the state of being discharged too much.
more on this and lot of other helpfull information you will find here:
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
http://www.androidpolice.com/2010/1...bump-charging-and-inconsistent-battery-drain/
Click to expand...
Click to collapse
read that ..
thank you
and is there any way to stop auto startups of apps?i have around 200apps and most of them i use around once a day or not even once
i use android assistant to manage startup but it does on boot and after some time if i check running apps most of apps will be there running
is there any app to block it running automatically? not just at startup ? full control like anything?
thank you
actually I cannot help with that. I don't use such a software and really don't believe in it. but, the fact is that I do not use so many apps. other fact is that surely there is some useful software that could help you with that task, i just do not use one and personally I'm not interested in it. I know that perhaps the best method is to freeze them with titanium but if you use these apps from time to time then it would become complicated and not worth the effort.
still I have few questions:
why would you like to stop them from working? do they drain your battery? if so then check your logs with bbs and find out which ones are draining, try to change their setting or get rid of them, or at least close only these ones. long time ago I was fighting with some apps that I do not use often and they start themselves from time to time. I didn't want to get rid of them, so before every night I was killing them one-by-one from applications menu (actually most of them didn't wake up until I ran them myself). finally, after many tests I got to the point that it doesn't make any difference. apps I was killing, even if running, didn't use any recourses, didn't produce wakelocks, they were just using some RAM. and if it is the reason of your concern then do not be worried - they may use as much RAM as they want - android will free RAM when it will need it.
now I do not kill any apps and by night I lose 0-2% of battery which is my only concern - what should we care more? CPU, RAM - let it work as long as it doesn't stop us from enjoying our phone and make a usage of it uncomfortable.
and if you're worried about packet data then you may limit it for each app using system menu in ICS.
ancilary said:
read that ..
thank you
and is there any way to stop auto startups of apps?i have around 200apps and most of them i use around once a day or not even once
i use android assistant to manage startup but it does on boot and after some time if i check running apps most of apps will be there running
is there any app to block it running automatically? not just at startup ? full control like anything?
thank you
Click to expand...
Click to collapse
Thanks dude. I also have the similar problem. I have spent months on it without any improvement. Now I'm quite frustrated and not optimistic on the solution you have provided towards my issue, but your decription gives me a lot of clue.
But my problem is even more tricky, I would like to share it here so see if anyone have met it before, or if I need to start a new thread to deal with it:
The problem can be generally decribed as below:
1. When the battery is fully charged, unplug and consume the juice until the level reach around 30%, then the phone is shut down automatically; after I plugin the power and restart the phone, the battery level is displayed as 0%;
2. After charging for a while from 0% , restart the phone and you will see the battery level directly goes back to 50%, but still with very low voltage;
3. Changing with a new battery won't solve the issue -- though the new battery itself may also have problem(not sure if it is genuine), but I don't think a fake battery and an old battery should behave almost the same, so I don't think it is the battery's problem; criticize if I'm wrong
4. Re-flashing a new rom won't solve the issue either. I have tried different CM9 nightlies and now I'm using CM10 nightlies, none of them is immune to the problem;
5. Clear the battery state won't solve the problem. It is hard to say whether it improves the situation at least a tiny bit. I mean it may work somehow, e.g. My phone used to be shut down at 50% battery level and now it can last to 36%. But it never totally solve the problem once and for all, so I still don't trust this caliberation thing may work.
I hope I have clearly stated my issue. I'm so at the end of my patience, this little bastard have been always torturing me You guys are the last I can count on I really hope I came here earlier so as not to have wasted so much time.
So, my ultimate goal is to extend the battery life of my phone and it's moot to do that if useless processes don't die on lock.
I have been looking for a binary or something that I can replace with a bash script that murders processes before locking the phone.
I'm running CM10 on a Samsung Galaxy Nexus. Would anyone have any advice on achieving this?
Why do you think killing everything will increase battery life?
Most things will just restart automatically which will then decrease battery life since they have to relaunch all the time.
Use an app like greenify or better battery stats to see what actually uses up lots of battery and uninstall memory hogs
Hii!
My LG G2 mini D620r is 2 and a half years old, and most of that time everything was ok. But, since two months ago, I noticed that the battery is draining much faster than usual. And also discharge wasn't happening continuously, but it had sam jums i.e. I would use phone for some ammount of time, and the battery gauge would show decrease in capacity of only a couple of percents, and then suddenly it would drop couple of percents more for no reason. Also I noticed that phone wouldn't charge up to the max. It would show that it is 100% full, but after only couple of minutes of idling it would drop to 97%.
After all that I thought that there was a problem with the battery and bought a new one. But it din's solve the problem at all. Problem just continued to apper so I came to conclusion that there was no problem with a battery.
I read somewhere that Android battery gauge can go crazy after certain ammount of time, and my phone in quite old.
So my question is:
Does anyone know what is the solution to the aforementioned problem?
Does this problem have anything with battery gauge?
And if it does, can it be solved by reflashing the stock ROM?
I forgot to mention that I'm using stock Android Lollipop 5.0.2, software version V20b-EUR-xx. Phone is rooted.
kazamat said:
Hii!
My LG G2 mini D620r is 2 and a half years old, and most of that time everything was ok. But, since two months ago, I noticed that the battery is draining much faster than usual. And also discharge wasn't happening continuously, but it had sam jums i.e. I would use phone for some ammount of time, and the battery gauge would show decrease in capacity of only a couple of percents, and then suddenly it would drop couple of percents more for no reason. Also I noticed that phone wouldn't charge up to the max. It would show that it is 100% full, but after only couple of minutes of idling it would drop to 97%.
After all that I thought that there was a problem with the battery and bought a new one. But it din's solve the problem at all. Problem just continued to apper so I came to conclusion that there was no problem with a battery.
I read somewhere that Android battery gauge can go crazy after certain ammount of time, and my phone in quite old.
So my question is:
Does anyone know what is the solution to the aforementioned problem?
Does this problem have anything with battery gauge?
And if it does, can it be solved by reflashing the stock ROM?
I forgot to mention that I'm using stock Android Lollipop 5.0.2, software version V20b-EUR-xx. Phone is rooted.
Click to expand...
Click to collapse
A few options you can try, cuz i had the same problem on my d620r:
- Calibrate your battery;
- Uninstall/rootuninstall bloatware by LG/google, and apps you don't need;
- Use Facebook Lite;
- Use Greenify and Amplify (ideally with xposed framework);
- You can try reflashing stock after full wipe, but i dont think it will fix your problems;
- Best solution > Flash a custom rom and do all the things above.
I didn't have that problem on stock, but on CM13. I was running xposed framework with lots of modules, V4A in the background and a custom kernel, but still, i don't think that was the drainage problem. I'm still using the battery that came with the phone, and flashing Resurrection Remix Nougat 7.1 by mobiusm, governor on ondemand and greenify almost doubled my battery life since cm13!
kasa ssg said:
A few options you can try, cuz i had the same problem on my d620r:
- Calibrate your battery;
- Uninstall/rootuninstall bloatware by LG/google, and apps you don't need;
- Use Facebook Lite;
- Use Greenify and Amplify (ideally with xposed framework);
- You can try reflashing stock after full wipe, but i dont think it will fix your problems;
- Best solution > Flash a custom rom and do all the things above.
I didn't have that problem on stock, but on CM13. I was running xposed framework with lots of modules, V4A in the background and a custom kernel, but still, i don't think that was the drainage problem. I'm still using the battery that came with the phone, and flashing Resurrection Remix Nougat 7.1 by mobiusm, governor on ondemand and greenify almost doubled my battery life since cm13!
Click to expand...
Click to collapse
In september, I flashed CM 13 snapshot from august, and I noticed some bugs with it so I returned to stock Lollipop. I think that's when the problems started. Since then I have used Battery Calibration app (if you know some better apps of that kind please do recommend), installed Greenify, but not Amplify and removed some of the preinstalled LG/Google bloatware, but not all. I do not use Facebook app at all. After all that it came to my mind to do full phone wipe and maybe that would eliminate the problem.
kazamat said:
In september, I flashed CM 13 snapshot from august, and I noticed some bugs with it so I returned to stock Lollipop. I think that's when the problems started. Since then I have used Battery Calibration app (if you know some better apps of that kind please do recommend), installed Greenify, but not Amplify and removed some of the preinstalled LG/Google bloatware, but not all. I do not use Facebook app at all. After all that it came to my mind to do full phone wipe and maybe that would eliminate the problem.
Click to expand...
Click to collapse
I'd still recommend custom rom tho, preferably RR 7.1
And if you don't want a custom rom, make sure you are calibrating your battery correctly. By deleting the batterystats.bin file you dont really calibrate the battery, rather you reset the battery percentage meter. That is important of course, but before using the calibration app, make sure to do these steps:
Preparation: Hard reset the phone, root it again, install greenify (and amplify if you want), uninstall bloatware, charge to 100%. DON'T USE THE PHONE DURING THIS PROCESS FOR BEST RESULTS
1)Download Battery Waster and Battery Calibration from Play Store
2) Turn on battery waster (turn off flashlight option, it heats up the phone, turn on data, location and other battery consuming settings)
3)Drain battery to 0% until phone shuts down by itself.
4)When it shuts down, turn the phone back again for about 5 times
5)After those 5 or so times of turning on, put your phone on a charger without turning on (use wall charger if u can, and please use correct voltage of 5V)
6)When your phone shows full charge, unplug it and turn it on.
7)When you get to the homescreen, if you have less than 100% battery, plug in your charger again (without turning your phone off)
8)When it shows 100%, unplug your phone
9) Turn on battery waster
10) Let it turn off by itself
11) Do steps 4,5,6,7,8 again
12) Launch battery calibration app (root), and press calibrate
13) Restart phone
14) Greenify your apps and enable agressive doze in settings
NOTES: If on step 4 your phone sucessfully boots again without immediately shutting down, just continue draining your battery until it shuts down.
TIP: Keep between 40% and 80% battery
Hopefully your battery is like new again and free of its problems, but again flashing a custom rom other than fixing your battery, might even boost it, and custom kernels might boost it even more! (If configured right, that is).
IF YOU DECIDE TO FLASH A CUSTOM ROM, PLEASE DO THIS REGARDLESS
I hope I helped you!
Thank you very much @kasa ssg!
If this doesn't help, then there's no way to help me at all.
EDIT: Finally I found some time to do a recalibration of my phone's battery, and I think it worked. It definitely lasts longer now than before calibration. Also I returned to my phone's original battery that came with it first time it was bought.