Develop Bugs

[Q] Battery life has me at my wits end! Help please!!!

Ok. So I have a G2, with CM7R4. I have SetCPU with all sorts of profiles and JuiceDefender on Extreme. I still can't get more than 6-7 hours out of my battery. I take it off the charger before I leave for work, and before I even clock out, the phone is dead. This is whith even minimal usage. The thing is, with minimal and heavy use, I get about the same battery life. What could possibly be causing this?
I went in to Battery Stats, and Cell Standby was at 60% or more, but my browser (which I've been using for 3 or so hours, and a game I've been playing for about the same, are both only at 2%. I went in to Spare Parts, and it showed the phone has been running constantly for about 3 hours with no sleep, even though I've shut the screen off and stopped using it completely numerous times in the last 3 hours.
There has got to be something I can do. How are people getting 2 days uptime when I can't even get 8 hours? Someone help please!
Edit: Thank you everyone for your suggestions! I drained my battery, wiped battery stats, removed a bunch of SetCPU profiles, and installed Green Power to regulate my data usage. I've seen no decline in functionality, but I have already begun to see a vast battery life improvement.

Stop using setcpu.
Sent from my G2 running Cyanogenmod 7.

Do you have a reason for this? I was told to start using SetCPU the last time I brought this issue up.

What are you setCPU profiles?

Oh yeah, if you made your profiles all whack, the cpu will be constantly running. Specifically if you've set a performance governor anywhere. The more you mess with the profile creator, the more battery life you can free up easiest way to learn is to play around with the governors from time to time.
Sent from my HTC Vision using XDA Premium App

Kevin001111 said:
What are you setCPU profiles?
Click to expand...
Click to collapse
In descending priority they are:
Screen off 245/245 ondemand
Temp >45.5c 806/245 ondemand
Charging 1516/245 ondemand
Battery <10% 286/245 powersave
Battery <25% 768/245 ondemand
Battery <50% 1113/245 ondemand
And my default is 1516/245 ondemand

detox702 said:
In descending priority they are:
Screen off 245/245 ondemand
Temp >45.5c 806/245 ondemand
Charging 1516/245 ondemand
Battery <10% 286/245 powersave
Battery <25% 768/245 ondemand
Battery <50% 1113/245 ondemand
And my default is 1516/245 ondemand
Click to expand...
Click to collapse
Why are you charging your phone at 1516 max? Your max for charging should be 806 (stock clock), to prevent excessive heat.
Have you tried wiping battery stats in ClockworkMod recovery?

I had the same when I flashed CM7 RC4!
How I fixed it:
1: let the battery drain, until it goes off.
2: you still have power to boot it in the recovery mode.
3: delete the battery stats (advanced tab)
4: reboot the device
5: charge it (device on or off doesn't really matter I think).
My battery was drained after 8 hours without much usage... now I get over 28 hours even with average use
also I only got 2 profiles @ setCPU: screen off min 386/ max 786mhz and the main profile: 806mhz max / 386 min and my device is not laggy or sluggish.
Using the pershoot kernel 2.6.32.36 and stock radio.

SnowOokami said:
I had the same when I flashed CM7 RC4!
How I fixed it:
1: let the battery drain, until it goes off.
2: you still have power to boot it in the recovery mode.
3: delete the battery stats (advanced tab)
4: reboot the device
5: charge it (device on or off doesn't really matter I think).
My battery was drained after 8 hours without much usage... now I get over 28 hours even with average use
also I only got 2 profiles @ setCPU: screen off min 386/ max 786mhz and the main profile: 806mhz max / 386 min and my device is not laggy or sluggish.
Using the pershoot kernel 2.6.32.36 and stock radio.
Click to expand...
Click to collapse
is it really necessary to let the battery drain in order to wipe the battery stats? I'm thinking about trying this myself, but there's some debate on whether or not the battery should be drained or not in other threads.
Sent from my HTC Vision using XDA Premium App

ohshootrawr said:
is it really necessary to let the battery drain in order to wipe the battery stats? I'm thinking about trying this myself, but there's some debate on whether or not the battery should be drained or not in other threads.
Sent from my HTC Vision using XDA Premium App
Click to expand...
Click to collapse
True it's not "healthy" to drain a li-on battery, but it's not 100% drained and I've been without power several times because I forgot to turn it off before I got home to charge it
Also in my opinion a 1-time total drain doesn't damage the battery. Just let your navigation on till it's empty (leave the screen on too) it will go off, you will be able to boot the phone once or twice after that, so it's not a 100% drain, boot in recovery mode then delete the battery stats, reboot and put the charger in it. That did the trick for me. Hopefully it works for you too
I guess you could do it the other way around, charge the phone completely, wipe the battery stats, drain it till it goes off and reboot. That takes a bit longer I guess.

You said it was the "phone" using most of your battery? I know there was or is a setting in cm "flip to ignore" that when enabled it kept the phone awake. Worth a shot...

Why are you charging your phone at 1516 max? Your max for charging should be 806 (stock clock), to prevent excessive heat.
Click to expand...
Click to collapse
That's why I have the temp. profile. I basically have to have my phone in a charger at all times, otherwise it dies. So I have it set to run at max so my games and whatnot work well.
I had the same when I flashed CM7 RC4!
How I fixed it:
1: let the battery drain, until it goes off.
2: you still have power to boot it in the recovery mode.
3: delete the battery stats (advanced tab)
4: reboot the device
5: charge it (device on or off doesn't really matter I think).
My battery was drained after 8 hours without much usage... now I get over 28 hours even with average use
also I only got 2 profiles @ setCPU: screen off min 386/ max 786mhz and the main profile: 806mhz max / 386 min and my device is not laggy or sluggish.
Using the pershoot kernel 2.6.32.36 and stock radio.
Click to expand...
Click to collapse
Thanks! I'll try this today, because my phone will undoubtedly die before I get home from work. I'd love to get 28hrs use. Last night, I got 7h30m30s on battery. That's good compared to what I usually get, but it left me without a phone during the deadest part of my shift.
You said it was the "phone" using most of your battery? I know there was or is a setting in cm "flip to ignore" that when enabled it kept the phone awake. Worth a shot...
Click to expand...
Click to collapse
Thanks! I'll look and see if this is causing it. I wouldn't've turned it on, but maybe it's on by default?

You need to recalibrate it by doing what that one post said, after using so many roms, your phone battery needs to be recalibrated

Since I've got the phone, I've only used CM, but I have used at least 5 different versions. I'm working on killing it right now. It'll be dead much earlier than usual with all the use its's getting, and I was smart enough to bring a charger so I can charge it as soon as it dies and gets recalibrated.

Let me know if it works for you!

detox702 said:
In descending priority they are:
Screen off 245/245 ondemand
Temp >45.5c 806/245 ondemand
Charging 1516/245 ondemand
Battery <10% 286/245 powersave
Battery <25% 768/245 ondemand
Battery <50% 1113/245 ondemand
And my default is 1516/245 ondemand
Click to expand...
Click to collapse
I had a setup similar to this (many different profiles) and I had awful battery drain. I read in a thread somewhere here that it was setcpu that was the culprit of the excessive drain because having many profiles has it constantly using cpu power.
I have since switched my default to 1017/245 on demand and now I only use a screen off profile at 245/245. Since making that change, my battery life improved significantly (25-30% improvement)
I don't do anything that requires the full 1.5ghz on my phone which is why I now run at 1ghz but definitely feel that the setcpu profiles cause some major drainage...

SnowOokami said:
True it's not "healthy" to drain a li-on battery, but it's not 100% drained and I've been without power several times because I forgot to turn it off before I got home to charge it
Also in my opinion a 1-time total drain doesn't damage the battery.
Click to expand...
Click to collapse
Its unlikely, but possible your battery will not take a charge after you discharge the battery too low (safety circuit does not properly kick in). I've seen this problem crop up (pretty occasionally) from time to time back on the Touch Pro 2 forums, and have seen it happen here to a couple people on the Vision as well.
The battery meter is not all that accurate, anyway. Most of what you suggest if fine: to delete battery stats, let it charge to full, but then drain to 10% or so. You aren't really gaining much by doing that versus totally empty, and its safer.

TrueYears said:
You need to recalibrate it by doing what that one post said, after using so many roms, your phone battery needs to be recalibrated
Click to expand...
Click to collapse
There is no such thing as calibrating a Li-ion battery. You are calibrating the battery meter on the phone.

[Solved][OC]Defy Omap 3630 Max Temperature

Greetings gents,hows it going?
I got a question,i managed to overclock my phone to stable [email protected]
But now im trying to push it to [email protected],and its working properly atm,30mins of Stability test and running good.
My only concern is...im watching the temperature and its at 43ºC atm..which isnt exactly "cold" .
My question is,which are the max secure temperatures this beast can go before getting in the risk of frying the CPU?
Thanks in advance ^
PS : I tried searching around but all i found is VSel's...im interested in temps rather than VSel's.
Respect

Is that your battery temp or the CPU temp?
If it's battery temp, I'd be starting to be concerned there. CPU's can handle way higher temps though, 80+C before I'd get worried at all.
But try it out in the sun, too.

dasbin said:
Is that your battery temp or the CPU temp?
If it's battery temp, I'd be starting to be concerned there. CPU's can handle way higher temps though, 80+C before I'd get worried at all.
But try it out in the sun, too.
Click to expand...
Click to collapse
Hmm tbh im not sure which temp it is,StabilityTest says "Temperature"p,now i got no idea tbh which of them it is XD
Time to try again
EDIT : Yep,those 43 - 44ºC are Battery Temps,so should i worry?o.o

80ºC, that's for laptops and desktops, even i start getting warnings in syslog at 85ºC in my core i5 laptop with fan running max speed, and we are talking about a phone processor encased with other chips in a very little space and with no heat dissipation at all... you could not hold it up at 80º though burning and melting on your hands.
There's a lot of info about batteries here http://en.wikipedia.org/wiki/Lithium_ion_battery
I dont think defy is able to drain enough energy to increase battery temperature to dangerous levels, but with temperatures above 40º chemistry inside battery is going to suffer,the higher the temps the less cycles of charge you are gonna get and you are risking a permanent loss of capacity.
The best way for a long life battery is small charges from 25% to 80%
Multiple charges between 80%-100% is the worst thing one can do.
anyway reaching 43º for battery during stress test is not for concern
Battery Monitor Widget is a very good program to keep an eye, and see graphs and stats of battery temps consumption projections and estimations of of juice left.. its simply amazing runs 24/7 and if you dont open it to play with it, it only takes about 10 seconds of total cpu power per day. i would recommend it. So it wont eat your battery when monitoring it, and the same goes for "process monitor" which is perfect to know total cpu power eaten by all apps trhough the day.

unrafa said:
80ºC, that's for laptops and desktops, even i start getting warnings in syslog at 85ºC in my core i5 laptop with fan running max speed, and we are talking about a phone processor encased with other chips in a very little space and with no heat dissipation at all... you could not hold it up at 80º though burning and melting on your hands.
There's a lot of info about batteries here http://en.wikipedia.org/wiki/Lithium_ion_battery
I dont think defy is able to drain enough energy to increase battery temperature to dangerous levels, but with temperatures above 40º chemistry inside battery is going to suffer,the higher the temps the less cycles of charge you are gonna get and you are risking a permanent loss of capacity.
The best way for a long life battery is small charges from 25% to 80%
Multiple charges between 80%-100% is the worst thing one can do.
anyway reaching 43º for battery during stress test is not for concern
Battery Monitor Widget is a very good program to keep an eye, and see graphs and stats of battery temps consumption projections and estimations of of juice left.. its simply amazing runs 24/7 and if you dont open it to play with it, it only takes about 10 seconds of total cpu power per day. i would recommend it. So it wont eat your battery when monitoring it, and the same goes for "process monitor" which is perfect to know total cpu power eaten by all apps trhough the day.
Click to expand...
Click to collapse
Oh Right,
Yeh its true that the best would be from totally discharged to totally charged for its life.
And good to know 43ºC isnt panic-able yet cause the phone runs very well on 1.3GHz/65 and a score of 2700 of Quadrant (Impressive aint it).
Anyways,thanks for all the info =)
Respect

Running 1400MHz/87vsel i have reached 48C in a few minutes. Oc over 1200MHz is not good for battery.

Question about Mugen 1700mAh battery

Hi
It seems that the stock Battery as a very low max temp limit before stopping charge.
I've made some test and it becomes pretty clear that at 45°C, the battery stop charging.
The problem is that when you're using the Defy for Car navigation this 45°C can be reach very easily.. so instead of maintain the charge, the Defy start to discharge quickly! But at this time the phone still indicate "charging in progress"
BTW, I'm looking after the Mugen 1700mAh battery:
http://www.mugen-power-batteries.com/review/product/list/id/681/category/413/
So I would like to know if someone can say or test the max temp of this battery. In general Li-io can reach up to 50°C, the 45°C seems a little bit low here. Maybe the Mugen Battery can do better than stock one ?
Thanks

have you tried undervolting your device? (less voltage = lower temperature) the defy is way overvolted and underclocked by default. the max vsel/frequency is 58vsel/800MHz, and i could run it stable with 42vsel...

I've allready undervolt my Defy. It run at 1000/48 at this time.
But the CPU Vsel is not the only source: GPS+3G+Screen on = battery drain = heat

I have my Defy placed in front of the AC blower as work around

[BATTERY] How to increase battery life

I saw here some people who crying about battery life.I decided to post few advices:
ON GB ROMS:
-switch to 2G network if you don't use data conection
-disable all animations(settings-display)
-disable auto-rotation if you don't need
-reduce your brightness or use automatic brightness)
-in "location" disable phone finder
-disable in "connect to pc" ask me
-in "power" disable fast boot and power saver
-in about "about phone-software update" disable scheduled check
-turn off GPS if you are not using
-turn off WI-FI if you are not using
-turn off MOBILE DATA if you are not using
-use SMARTASS V2 with noop/sio
-if you can/want underclock your phone to 480 MHZ
-i recommend to charge your phone with original HTC CHARGERS.
This tips will also speed-up your phone,and yo will see great improvments in battery life and performance.
This is my tips to increase battery life.IF IS USEFULL TO YOU,PRESS THANKS BUTTON !

thx u!

underclocks are pointless and would not speed-up the phone.
Sent from MARVEL JellyScream

asdot said:
underclocks are pointless and would not speed-up the phone.
Sent from MARVEL JellyScream
Click to expand...
Click to collapse
Yes but other advices is very usefull to increase battery life.:good:

Nice tips!
Will these work on ICS/JB based roms as well?

rymate1234 said:
Nice tips!
Will these work on ICS/JB based roms as well?
Click to expand...
Click to collapse
Yes,but you will not find ALL SETTINGS in ICS/JB.

Thx!

Thanks!!!
Good tips...Also you can extend them to give some more tips..

edu_stoicescu said:
-i recommend to charge your phone with original HTC CHARGERS.
This tips will also speed-up your phone,and yo will see great improvments in battery life and performance.
This is my tips to increase battery life.IF IS USEFULL TO YOU,PRESS THANKS BUTTON !
Click to expand...
Click to collapse
Cool recomendation ^
Thanks.

Already i feel 600mhz is very low for my usage! Nd u are sAying ro underclock it!
#noOffenses
Sent from my HTC Wildfire S A510e using xda premium

Απ: [BATTERY] How to increase battery life
ansh1996 said:
Already i feel 600mhz is very low for my usage! Nd u are sAying ro underclock it!
#noOffenses
Sent from my HTC Wildfire S A510e using xda premium
Click to expand...
Click to collapse
What max-. Min do you use?
And what covernor?
Send from my HTC Wildfire S
ROM. Wildchild V3.3

Tips To Increase Backup And Life Of Smart Phone Battery
Tips to increase backup:
1- If you have bought a new smartphone and experiencing poor or unsatisfied battery backup, charge your phone battery full then discharge it to as low as 10 %. Repeat this process 9 or 10 times. Lithium inside battery will settle and backup will increase.
2- To preserve battery charge, it is recommended to turn off Wi-Fi, bluetooth, GPS and mobile internet (3G, Edge or GPRS) when not required. When Wi-Fi internet is available, preferably use it as mobile internet consumes more battery power.
3- Brighter the display is; more the battery is consumed. Dim the display brightness to preserve battery charge.
4- Use 'Power Saver' to manage battery. If you are using smartphone powered with multi core CPU, limit the core utilization. This will definitely decrease the processing power but increase battery backup.
5- Instead of using live wallpapers, use static wallpapers. Live wallpapers require processing power of CPU and GPU and therefore increase battery consumption.
Tips to increase life:
1- It is a general misconception that charging battery more often decreases battery life. Actually, discharging battery too much decreases battery life. Lithium ion battery and lithium polymer battery offer several hundred charge-discharge cycles. One cycle is full charge to almost complete discharge. It is recommended to recharge battery even if battery has more than 50 % charge left. This will help extending battery life.
2- Deep discharging any rechargeable battery is extremely fatal for it. Smartphones start poking to recharge battery when battery is down. Usually, it begins when battery charge is almost 15 % left. It is best to recharge battery instead of keeping up using it.
3- If a mobile phone is not in use and has to be stored, charge the battery full and put it in dark away from sunlight, extreme temperature and moisture. Recharge its battery after every two months.
Source: Tips To Increase Backup And Life Of Smart Phone Battery

ansh1996 said:
Already i feel 600mhz is very low for my usage! Nd u are sAying ro underclock it!
#noOffenses
Sent from my HTC Wildfire S A510e using xda premium
Click to expand...
Click to collapse
Let's get something Straight....
TheUnderclock (really it's called Undervolt) is to purposely slow the phone down to preserve battery.
I don't think the guy who started this would really like his thread loaded with:
ITS SLOW, I DON'T LIKE IT!!!
But remember, it slows the phone DOWN!
Click thanks if I helped.​

I am telling you try battery calibration 1.2 app it really works nice and also saves battery!
Sent from my HTC Desire C

ExonakiDev said:
I am telling you try battery calibration 1.2 app it really works nice and also saves battery!
Sent from my HTC Desire C
Click to expand...
Click to collapse
Bro, battery calibration is a good thing to re-calibrate battery gauge because over time, the system inside battery to track battery charge may get messed up and requires re-calibration. But I must add, re-calibration should not be done repeatedly. It is because, when gauge is being calibrated, battery is deep discharged to 0 % and deep discharging any rechargeable battery is not good for its health.

Anyone remember how long their battery lasted @ 480Mhz??

is tast killer good for save battery? or no?

stew0.sv said:
is tast killer good for save battery? or no?
Click to expand...
Click to collapse
No because the most applications will restart again when you kill them what will even cost more battery.
Sent from my Nexus 7 using xda app-developers app

Nice tips to increase battery li:victory:fe

[Q] Best time to charge battery?

Actually when is the best time to charge the phone battery?
1) Less than 50%?
2) Less than 25%?
3) First warning at 14%?
4) Second warning at 4%?
5) Last warning at 1%?
6) Completely finish it?

Actually there is no definite need for a "best time" to charge.
Lithium batteries are best kept in charged state. Draining it to 0% won't do you any good neither.
My policy charging is to charge when its above 30%.
Because it in an extremely slight way harms the lithium-ions when it goes down to 0%.
Which is why all battery calibrating guides discourages frequent calibrating.
Low battery does not damage the device or the battery but it does create more radiation than usual.
Which is bad for human organs. That's the down side to low battery.
Last but not least, it is better to keep your phone charged than emptied at all times. Right?
Press thanks if you think I'm helpful. Thankyou.

Best is to recharge it when it's more than half full, because it won't have to endure heat for too long.
Heat is the #1 enemy for Li-ion batteries.
-- Sent from a GT-I8150 running ICS perfectly well. F'U, Sams#!t --

Thanks for your both advices. I always used until battery low warning appear. Is it good if I charge & play at the same time? And how long before unplug the charger after fully charged?

You're welcome.
Its not recommended though, your battery heats up extremely quickly if you charge while you play.(watching SD quality video is okay though, since the cpu isn't stressed to provide smoothness)
I do that once in awhile but once the temperature struck 40celcius I quit playing. (you'll notice, it gets hot real quick...)
You can download a battery status app to check its temperature.
Basically once its full its okay to unplug. Overcharging is extremely bad.

KiD3991 said:
You're welcome.
Its not recommended though, your battery heats up extremely quickly if you charge while you play.(watching SD quality video is okay though, since the cpu isn't stressed to provide smoothness)
I do that once in awhile but once the temperature struck 40celcius I quit playing. (you'll notice, it gets hot real quick...)
You can download a battery status app to check its temperature.
Basically once its full its okay to unplug. Overcharging is extremely bad.
Click to expand...
Click to collapse
Which app do you recommend?

kai92 said:
Which app do you recommend?
Click to expand...
Click to collapse
Temp+CPU pro. I'm using this. Its a widget app.
It shows you Cpu freq, Temp and free ram. Quite handy

kai92 said:
Which app do you recommend?
Click to expand...
Click to collapse
I use CPU Tuner; it not only regulates CPUfreq (and able to do an emergency cap on MaxFreq if the battery is hotter than a certain temperature), but it also provides widgets that can -- among others -- display the current temperature of the battery.

kai92 said:
Actually when is the best time to charge the phone battery?
1) Less than 50%?
2) Less than 25%?
3) First warning at 14%?
4) Second warning at 4%?
5) Last warning at 1%?
6) Completely finish it?
Click to expand...
Click to collapse
Have a read of these articles for some good tips and more advice on looking after Li-ion batteries.
http://www.techrepublic.com/blog/helpdesk/the-care-and-feeding-of-li-ion-batteries/124
http://www.gamersnexus.net/guides/899-battery-myths-li-ion-battery-management