Appropriate steps to a better battery life? - EVO 4G General

Hi everyone! Long time XDA reader and I've had my Evo rooted for months. Now I have been dealing with its "poor" battery life for a long time and not really thinking much of it till I finally decided that rooting has to have some advantage for this. I average about 6-7 hours then my phone dies...
After doing a little research I read some people getting 15-20+ hours out of their phone with heavy use...I was amazed...I decided to try to get better battery life on my phone and this is what I am trying right now. I just want to make sure I am on the right path with it and that I am not doing anything seriously wrong.
-I am trying Cynogens ROMs - CM7 I tried for a day and that gave me about 7 hours of battery life...still no real improvments. I am trying Cynogens 7 Nightly 12 now to see if that works.
-I am trying different Kernels. Been getting them on the HTC EVO kernels page. Right now I am using stock HTC one.
-Should I try different radios too? Where can I go to find different radios if so.
-What order should I be installing radios/kernels/roms?
-I have donated and am using Set CPU now also and have the screen off cpu power really low.
-Am I on the right path trying out different ROMS/ Kernels/ Radios to optimize my battery life? Is there anything else I can be trying?

turn off gps when not need
data when not needed

Check out my sig for my full walk-through on battery life (I don't want to repost it here lol).
But you seem to be doing everything okay. My only hesitation would be to say make sure you're giving Kernels adequate time to settle into your phone. Unless something is HORRIBLY wrong with them, you shouldn't switch/judge them until at least two days in
Radios should not make a difference in your battery life.
Also, be aware that CM is NOT optimized for battery life. There are a couple of ROMs that will give you unheard of battery life if you would like though (Myn's comes to mind). It's a trade off though. CM is hands down the fastest ROM you'll run...but in my experiences is in the lower tier of battery.
Hope that helps

also when the newest version of ultimate Juice is released that will help you i have the closed beta and im glad to have it back and running

@Cheesy: I turn off all those things If I turn off "data" that turns off Exchange push right? I really need that on all the time >_<
@Green: Really? Myns is good on battery life? I tried that before and was dieing with battery. (Was getting my average 6-7 hours) I had that one for about 2 weeks. Do you think it was my Kernels that were bad then? Isn't Myns warm 2 pt sense based? The one I used was...I had thought sense UI drained battery more than CM for example that is just plain stock android gingerbread?
@Cheesy again: Ultimate Juice? Is that an app on the mkt place? How much did it help you? I'm willing to donate and pay for apps to support the devs if they really make a noticeable difference.
Another thing..when you install a ROM does it automatically install a Kernel too? Or are those 2 separate?

syypher said:
@Cheesy: I turn off all those things If I turn off "data" that turns off Exchange push right? I really need that on all the time >_<
@Green: Really? Myns is good on battery life? I tried that before and was dieing with battery. (Was getting my average 6-7 hours) I had that one for about 2 weeks. Do you think it was my Kernels that were bad then? Isn't Myns warm 2 pt sense based? The one I used was...I had thought sense UI drained battery more than CM for example that is just plain stock android gingerbread?
@Cheesy again: Ultimate Juice? Is that an app on the mkt place? How much did it help you? I'm willing to donate and pay for apps to support the devs if they really make a noticeable difference.
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with UJ i get 18-19 or more on a full charge with phone being used 80% of the day .
with out i was changing out batteries after 9 hours or so ( i normally work 12 - 13 hours a day )
yes its in the market but gingerbread support is not public yet ( closed beta )
also check in spareparts for any wakelocks you might be having
for a sense rom myns are great so are Ava's,caulkins and Miks

Hmm Thanks Cheesy. I'll take a look at that.
So if I flash a ROM that is not Gingerbread...I can use that app. But Gingerbread is anything 2.0+ right?
I'll try out those ROMs too and different kernels...test them for 2-3 days.
Whats wake lock? I'll download that spare parts thing and see if I can figure it out.

I just recently started seeing great battery life with my rooted Evo. I flashed MikFroYo 4.5 with a stock htc kernal.
I use juice defender and that's it. I've been getting just over a day per charge for the past two weeks.
I wouldn't say that's with heavy use as a good 6-7 hours of that time are accounted for when I'm asleep. I do about 30-50 texts a day. About 10 minutes of calls and I check facebook and twitter all the time. My data use varies depending on the day but I do use youtube and pandora pretty regularly as well.

just make sure background data is disabled. accounts and sync>background data. I have no issues with battery life on stock sprint evo.
of course it is a 3500mah battery

My wife and I just bought two EVOs a week and a half ago, and I quickly became interested in improving the battery life on the phone. My first attempts were rooting my phone and installing OverClock Widget, and using minimal settings when the screen was off. With that change alone, and comparing to my wife's phone from a full overnight charge, my phone was able to make it 14-16 hours with moderate use. My wife's phone would die after 8-9 hours of moderate use. Granted, there's obviously going to be a difference between my moderate use and hers, but even testing with screens off and letting them idle for an hour, there was a definitive difference in battery consumption between our phones.
I went one step further and installed CM7 Nightly 12 just yesterday... already I'm noticing even further improvement in battery life, but the majority of those savings are when my phone is idle. Overnight, my battery only drained 7%, whereas my wife's drained much more than that. My battery has been at 39% for the past 3 hours at idle, so I imagine that with my version of "standard usage", I would be able to possibly get higher than 16 hours of usage per charge (can't wait until I do the full calculation testing tomorrow!).
Here are some observations I've had in all of this:
1) Check out Greenfieldan's list of battery tips and tricks. Some of these are very simple and actually had a significant impact on both my phone and my wife's phone (especially shutting off data and disabling auto-synch). I'm new to the forums, but this is one of the first things I checked out. This is a great place to start.
2) Battery consumption is obviously affected by how frequently you use your phone, and what you are doing with it. I say this because it's easy to read threads about what techniques work and see mixed results, but I don't see alot of people really admitting how much or how little they use their phones. I'd say I'm a more conservative user of my phone, but I still have my texting, browsing, and even occasional streaming, GPS using and general fiddling. So in other words, your mileage may vary with any given technique.
3) This is my personal opinion, but think about when you ideally want to be charging your phone, and try and anticipate usage around it. It sounds strange, but I've come to my own conclusion that an optimal charge for me (not necessarily possible, but optimal) will give either 12 or 36 hours of usage time. This is because I like to charge my phone overnight, so if I get 18 hours of battery life, I'm unfortunately wasting 4-6 of them. If I get 24 hours of usage, then that means that by the next morning, I need to charge again. So I plan ahead and charge at night, and use through the day. This was particularly useful when I first started with the phone and was getting a max of 8-9 hours. I'd know when to unplug, and how well it would get me through the day.
Anyway, at this point I'm rambling, but since it is still very fresh in my mind I wanted to share my thoughts. Hopefully this helps.
(Btw, apologies for the huge post!!)

syypher said:
So if I flash a ROM that is not Gingerbread...I can use that app. But Gingerbread is anything 2.0+ right?
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Gingerbread is Android v2.3. Froyo is v2.2.

syypher said:
@Cheesy: I turn off all those things If I turn off "data" that turns off Exchange push right? I really need that on all the time >_<
@Green: Really? Myns is good on battery life? I tried that before and was dieing with battery. (Was getting my average 6-7 hours) I had that one for about 2 weeks. Do you think it was my Kernels that were bad then? Isn't Myns warm 2 pt sense based? The one I used was...I had thought sense UI drained battery more than CM for example that is just plain stock android gingerbread?
@Cheesy again: Ultimate Juice? Is that an app on the mkt place? How much did it help you? I'm willing to donate and pay for apps to support the devs if they really make a noticeable difference.
Another thing..when you install a ROM does it automatically install a Kernel too? Or are those 2 separate?
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Sorry it took me so long to reply.
Anyhow, from my testing on mine and three other phones Myn's Warm TwoPointTwo has the best battery life (although some of them were right on par with it). Specifically his RLS 3 and RLS 4. Did you try Warm Z? Because the battery life on that ROM is no where NEAR his 2.2 ROM.
Also, Sense CAN be a major drain on battery. If you make it so it's not syncing all the time/doing the random shenanigans it defaults to I'd argue it's better than AOSP (based on my experience with both).
Yes, your Kernel might have been an issue. Do you know which one you were using? HAVS? CFS? BFS? Etc.
Just for my phone comparison, CM7 (which I am running now) requires me to charge my phone at least once a day. Myn's Warm TwoPointTwo was every other day/every day and a half.

syypher said:
@Cheesy: I turn off all those things If I turn off "data" that turns off Exchange push right? I really need that on all the time.
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Click to collapse
You can set juice defender to turn on data to sync at set intervals; anywhere from 15min to every couple of hours. If you can stand to wait 15 minutes for that email then I would recommend it. I personally like not being interrupted every time I get an email.
Also, make sure your kernel and setCPU aren't trying to both control the same thing. I really like using a kernel with HAVS so I avoid apps that also try to modulate my CPU.
I've tried warm 2.2 and really like it. Although I think I'm getting slightly better battery with Azrael X 4.0 with netarchy 4.3.1-cfs-havs-nosbc and ultimate juice controlling only my data and WiFi connections.
Also,the 3500mah battery is worth every penny if you don't mind the extra thickness.

i owe setcpu and screen off seting for my battery life

I read Greenfieldan's step on the forum here about a week ago, and jsut the HTC Method of battery calibration alone changed my battery life completely.
I also dumped Advanced Task Killer.
In another thread, I rad that CM is the worst drain on a battery and I personally think the guy that wrote that is sadly mistaken. Even with all the steps taken in Greenfieldan's guide, Sense based ROMs are battery killers. They are the worst, by far, and I average battery drain at about 15-20% pr hour, even with screen off.
The #2 killer, is having your screen on. Waiting for that next text to come in with the screen on is not worth it, so turn it off when you're not using it.
With the setup in my sig, and moderate to heavy use, in 12 hours, I only drop about 25% with a Sedio 3500maH battery.
With Sense, like I said, quick battery death.

I'm using CM7 - Nightly 12 right now + Stock Kernel...I also have set cpu to change cpu usage when screen is off.
This combo was my first combo I started trying (2 days ago when I posted this) to test for increased battery life. I followed what some of you guys suggested and let it "work into my phone." Instead of giving up after 1 day of test.
Results! Just yesterday I had my phone on for 14 hours and it was at 18%! That is a HUGE improvement. Right now it is at 65% and I've had it on for about 5 hours. That's really long compared to what it was before! Before I tried changing the ROM, kernel and using Set CPU I would be at the red right now or around 15%.
Thanks you guys for all the suggestions! Any further advice would be greatly appreciated! (Only sad thing is that my GPS doesn't work with CM7 - Nightly 12 >_<...) Other than that I love it!

Related

Official Froyo battery life thread

Wanted to start this so we can get a better idea of what kind of battery life we will be seeing with 2.2! Please post your opinions so far and if you are rooted/stock and using stock kernel or the .34 kernel cyan posted. Hopefully we won't see much of a decrease do to JIT or any other new features
Probably won't be that great the first couple of days...testing out Flash and everything...(watching Hulu right now).
SiNJiN76 said:
Probably won't be that great the first couple of days...testing out Flash and everything...(watching Hulu right now).
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hulu doesnt work for me. i get unsupported device.
dvdgorila said:
hulu doesnt work for me. i get unsupported device.
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http://forum.xda-developers.com/showthread.php?t=686765
i was on CM5.0.7t2, and as we all know, CM is known for draining more battery than the stock rom/enoms but so far im seeing same usage as CM which is ok but not great. next few days will be testing for all of us. hopefully we will have similiar usages not like before where some people are getting 40 hours and some 10 lol
I dont if theres an improvement but I updated on a full battery. After I had 97% then killed the battery in like 5hours while at the Engadget Show lol
is anyone running setcpu with FroYo? im already gettin horribad battery life...probably due to Hulu
I may have done something wrong, but I'm on a rooted phone with kernel 2.6.32.9-27220-g328f560 and my phone went from 80% to 10% in about 4 hours just sitting in my pocket. The most I did was check some emails and some basic SMS.
Will monitor closer tomorrow by my battery usage shows something like 19% email. I wonder if my outlook push is doing something constantly that is hurting it.
Edit: it's also charging REALLY slowly. I have it connected to a USB port and its taken ~ 30 minutes to go from 14-16%.
So far, mine is looking pretty good. Early days yet though.
Its better with froyo.
Had to charge every evening with CM 5.0.6 and pershoots kernel, now i get almost a half day more (with more "playing around").
I use setcpu (245/499 at sleep).
My battery is showing 99% after 3 hours switched on and with light usage. If true, that is amazing! More likely something is not quite right. I am using the .34 UV kernel from persionsown he posted on twitter....
The Jones.. gotta try that Kernel..
Sindroid said:
The Jones.. gotta try that Kernel..
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If I believed that it were a true reflection of battery use and not a mis-report of some sort, I would be shouting about it a lot louder!!
i streamed about 1.5 hours of video via qik (uploading not DLing). Still have 60% battery left. I say that's an improvement. Rooted modaco froyo
I'm seeing what I think is significantly worse battery life since I installed Froyo. It's hard to say, though, because I've been playing around in ways that are different from my normal usage pattern (checking the market frequently for updated apps, for example). I was on stock 2.1update1 and now am on stock Froyo.
Battery life is definitely better than Cyano/Modaco/Enomther but it is also worse than stock ERE27. Can definitely make it through a day still though on moderate/slightly heavy use with Froyo something I can't do with Cyan/Modaco/Enom...and this is way faster and more fun than any rom i've had previously so no complaints from me.
Well I was running cyan 5.0.7 and it lasted me longer than this I have now, which is Paul's Froyo.. but since my wi-fi finally stays on I wont revert.
Question: can I still install older custom kernels on froyo???. Want to try...
My battery died sometime last night, and I had gone to bed with it 70% charged. Prior to Froyo, I was on CM 5.0.6 and usually using intersectraven's 925mv kernels, and I would lose about 1.2% per hour while idling.
I'm not blaming Froyo yet, since it could have been an app screwing around. However, the battery usage page didn't show anything out of the ordinary. It will take some more testing before I ditch Froyo until an update is released.
BTW, battery usage while actually using the phone seems to be about the same.
my battery life was phenomenal today. i can't give percentage, because i haven't put on a battery widget (or many widgets at all, tbh), but stock froyo treated me well. was above 80% (guessing by icon) when i left work after 8 hours, some hulu, some wifi, some texting, some phone calls. not exactly heavy usage, but not just idle either.
timothydonohue said:
my battery life was phenomenal today. i can't give percentage, because i haven't put on a battery widget (or many widgets at all, tbh), but stock froyo treated me well. was above 80% (guessing by icon) when i left work after 8 hours, some hulu, some wifi, some texting, some phone calls. not exactly heavy usage, but not just idle either.
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Check out Battery Indicator http://www.cyrket.com/p/android/com.darshancomputing.BatteryIndicator/
Great and extremely simple app. I've been using it for months. (And it doesn't drain battery either.)

Best battery life rom

My girlfriends Evo battery life is horrible. She mainly just text a lot and surfs facebook. I need a rom to get her battery life to where she can make it at lease 8 hours before having to charge her phone.
cody0707 said:
My girlfriends Evo battery life is horrible. She mainly just text a lot and surfs facebook. I need a rom to get her battery life to where she can make it at lease 8 hours before having to charge her phone.
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A 3500 battery...nuff said
Savage-Mod
I would get Savage mod 1.1 with savaged zen 1.1.0 cfs havs sbc. I've been using it for the past week and it has been great. The texting and phone it self is faster and smoother than any rom i've used and i've been through most. I am currently on 65%, its been unplugged for 8 and a half hours. I understand that others may have better battery live but i'm using my stock battery, which is great cause I saved money and didn't add any thickness. PM if you have any questions.
I'm on Myn's Warm Z with Netarchy 4.3.2 cfs, sbc, havs more. Even with heavy usage (including video streaming and web surfing) my battery lasts a good 10 hours. I can't recommend this combo enough. I had horrible battery life with the stock kernel on Warm Z. Only thing is, depending on her hardward build, you may have to test a couple different kernels.
Easy answer:
EViO 2, SetCPU to underclock to 921, remove sense and use ADW.
Long answer:
To really figure it out, you'll have to try a bunch of diff ROM/Kernel combos for a couple days each.
I would try with CM7, the ROM from "yet another AOSP ginger ROM," Salvage-Mod, Savaged-Zen(Mod) RC2, Miui and whatever sense ROMs you want.
Also, Juice Defender and Autostarts will help you.
I recommend CM7 with a Savaged-Zen ROM CFS- SBC. Even after flashing a new nightly, I avg. 13-14 hours the first day before the kernel is broken in. Best of all Roms that I've tried and I really use my phone (data & mp3). Forgot to mention, I use Setcpu with profiles.
redsoxfan320 said:
I would get Savage mod 1.1 with savaged zen 1.1.0 cfs havs sbc. I've been using it for the past week and it has been great. The texting and phone it self is faster and smoother than any rom i've used and i've been through most. I am currently on 65%, its been unplugged for 8 and a half hours. I understand that others may have better battery live but i'm using my stock battery, which is great cause I saved money and didn't add any thickness. PM if you have any questions.
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You saved yourself 13 dollars and 6 mm...my god!
iitreatedii said:
You saved yourself 13 dollars and 6 mm...my god!
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Let's face it: women have a better sense of style than us dudes, and no chick in their right mind would put up with having a hideous cinderblock of a phone. 6mm might as well be an inch when it comes to stuffing a phone into her jeans. In the interest of keeping our women looking fine as hell, let's find software solutions to battery life
To the OP, try this first: go into settings/wireless and networks and uncheck enable always on mobile data. When I was on a stock Evo, this helped me immensely with battery life. Also, uninstall any task killers she has. Check what programs are syncing with the internet too, it's really just data use that eats up battery life with these phones.
Also, post up a screenshot of her battery use screen, maybe we can help figure out what the drain is Even a stock evo running the latest Sprint update should get around 10 hours, minimum, with moderate use like facebook and texting.
thegregbradley said:
Let's face it: women have a better sense of style than us dudes, and no chick in their right mind would put up with having a hideous cinderblock of a phone. 6mm might as well be an inch when it comes to stuffing a phone into her jeans. In the interest of keeping our women looking fine as hell, let's find software solutions to battery life
To the OP, try this first: go into settings/wireless and networks and uncheck enable always on mobile data. When I was on a stock Evo, this helped me immensely with battery life. Also, uninstall any task killers she has. Check what programs are syncing with the internet too, it's really just data use that eats up battery life with these phones.
Also, post up a screenshot of her battery use screen, maybe we can help figure out what the drain is Even a stock evo running the latest Sprint update should get around 10 hours, minimum, with moderate use like facebook and texting.
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so you base your decision off the fact that your wife/girlfriend/friend will be holding your phone and will buldge out of her pocket...maybe YOU should be holding YOUR phone, but hey i guess im weird, my girl might hold my phone, but she doesnt stuff it in her pocket and walk around with it thats stupid, besides my girl puts everything in her pocketbook as most do, keeps the figure , at least thats what i tell her lol
I am running well with deck's rom (the "yet another gingerbread" rom), rc9 now, and the new savaged-zen kernel (1.1). The phone is running really well. I just tried the undervolting script and that made a few reboots, which never happened since I went aosp last month, so I removed that. battery life seems really good though. 1st run through on the latest kernel went from about 11pm last night until 6pm today with pretty good use. I expect as it settles in it should do well.
Juice defender should help immensely if all she does is text and fb
A drop of Chuck Norris's semen was placed on Android OS. We now have CyanogenMod.
iitreatedii said:
You saved yourself 13 dollars and 6 mm...my god!
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I'd pay to have my phone 6mm thinner. You can't argue personal opinion bud.
Using the latest savaged Zen rc2 with whatever it comes preloaded with. Its pretty beast.
cody0707 said:
My girlfriends Evo battery life is horrible. She mainly just text a lot and surfs facebook. I need a rom to get her battery life to where she can make it at lease 8 hours before having to charge her phone.
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CM7 RC4 with Savage Zen 1.1.0 kernel, Seidio 3500mAh battery will give you DAYS of battery life if you use it moderately to little usage. With a stock battery you will still get over a day easily.
I have wifi on most of the day, live wallpaper (the smoke one), I DONT use any task killer (because it actually slows down my phone), Bluetooth is on and connected to my car whenever Im driving (at least 60 miles per day)
I believe that if I have to use airplane mode, turn off GPS, not use wifi, not use the phone to its full potential then I rather have a cheaper phone and get a laptop...
The screen shots below were made with STOCK battery because I wanted to know the real difference in battery life between the roms!
Note the usage... I listen to music, voice calls...
here is another comparisson...
I really hope this helps you find what you are looking for
Actually, lies, those screen shots were made with gginggerbread 6(which is based on CM7) with savage zen 0.2.something...
The following screen shots were made with the specs I mentioned in the previous post... Its possible that the battery has improved note the 10 hours of usage and only 12% spent and bluetooth usage

Which ROM and Kernel for better battery life?

I'm looking for a ROM which can make my device hit at least 24 hours with light/moderate use. I know it's based on how the much the user interacts with the phone, signal strength, etc but there has to be a ROM which made your battery life amazing! I'm currently hitting about 12-14 hours with light to moderate use. I've seen people that use it the same amount and get nearly 2 days, how can I achieve this? I read somewhere that Pershoots kernel does well with extending battery life.
I'm currently on CM7 with the stock cm kernel.
Thanks for any helpful posts!
Okay so in my experience to get 'good" battery life with a g2 you need to turn off your push updates, stay off of data as much as possible, and only hook into wifi when you need it. Make sure your screen is on for no longer than 30 seconds, turn down your brightness, and set some profiles under setcpu to downclock you after you get to sub X battery life. Just make sure to increase the priority the lower your battery life goes.
The best and most consistent battery life figure I've gotten is 42-48 hr by generally not being a complete dickwad. If you flash a rom and have to download all your apps again it is going to suck you dry. I ran Cm6.1.1 with preshoots kernel for a goodly while and have pulled the same speed/battery life as I do on Virtuous with Advanced Kernel. It's taken a couple days for it to settle in but yeah, you're looking at 42ish with moderate net usage, full signal, and darn near constant texting.
Edit: Let me clarify. As your power goes down you should downclock in 5% increments. For every 5% less battery power you have, you need to increase the priority of that profile by 5%. Make a profile that is 100% priority but downclocks your cpu to 350ish max and 200ish min. Also something to keep in mind is that every piece of hardware is different. Some people can report fantastic life on the same kernel and OS. Just one of those weird machine god things.
durps said:
I'm looking for a ROM which can make my device hit at least 24 hours with light/moderate use. I know it's based on how the much the user interacts with the phone, signal strength, etc but there has to be a ROM which made your battery life amazing! I'm currently hitting about 12-14 hours with light to moderate use. I've seen people that use it the same amount and get nearly 2 days, how can I achieve this? I read somewhere that Pershoots kernel does well with extending battery life.
I'm currently on CM7 with the stock cm kernel.
Thanks for any helpful posts!
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I am running Desire_S_G2_Port_Sense2.1_Gingerbread_2.3.3 on my DZ and i am very happy with the battery life..
Thanks for the replies guys, looking forward to more!
Sent from my HTC Vision using XDA App
I can get a day and a half with team villian sense ginger. The one before 3.0 best battery life i have seen yet. This is a 1.5days with constant OC no screen profiles or any kind of battery saving profiles. I would say im a slighty less then heavy user. Wifi always runs and i use gps for about an hour depending where im going. Now i normally charge her up every night but i have forgotten on ocasion and made it till i got home from work the next day.
Sent from my HTC Vision using XDA App
+1 on villan rom, i set an off screen OC to 300MHZ and an on screen to 1.5Ghz, and i get 20+ hours out of it with mild data. wifi off unless im home and location always turned off unless i need it.
Might give that villian rom a try, is there a specific kernel I should use? Or should I just use the one that's already on the villian rom?
Sent from my HTC Vision using XDA App
just download from the current thread, the 1.5 version, it has an kernel that OC's to 1.5GHZ and works well.
i would download as is, and if you like, play with the kernel later on if you really want to.
Or if you like sense get sense ginger. Im not sure how you can get the older version but you could try the new one.
Sent from my HTC Vision using XDA App
astriaos said:
Okay so in my experience to get 'good" battery life with a g2 you need to turn off your push updates, stay off of data as much as possible, and only hook into wifi when you need it. Make sure your screen is on for no longer than 30 seconds, turn down your brightness, and set some profiles under setcpu to downclock you after you get to sub X battery life. Just make sure to increase the priority the lower your battery life goes.
The best and most consistent battery life figure I've gotten is 42-48 hr by generally not being a complete dickwad. If you flash a rom and have to download all your apps again it is going to suck you dry. I ran Cm6.1.1 with preshoots kernel for a goodly while and have pulled the same speed/battery life as I do on Virtuous with Advanced Kernel. It's taken a couple days for it to settle in but yeah, you're looking at 42ish with moderate net usage, full signal, and darn near constant texting.
Edit: Let me clarify. As your power goes down you should downclock in 5% increments. For every 5% less battery power you have, you need to increase the priority of that profile by 5%. Make a profile that is 100% priority but downclocks your cpu to 350ish max and 200ish min. Also something to keep in mind is that every piece of hardware is different. Some people can report fantastic life on the same kernel and OS. Just one of those weird machine god things.
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He is right, but lots of us has been through several ROMs and I can say that from the look of it all the ROMs use lots of battery life due to all the running processes. If you end up finding a ROM that supports your needs post it and let everyone know. Hope I helped

[Q] Battery useage questions

Finally got my desire z, it came with 2.3.3 unfortunately. So as yet not rooted or anything as I don't have the time just now.
Was just wondering what people's current drain was, mine seems to be around 32mA on standby which shoots up to between 200-350mA with screen on, brightness at 12%.
1. Would this be considered normal for stock?
2. I also am having the dialler high useage issue, tried most of the fixes but still quite high, was this ever resolved properly?
3. Thinking of romming to virtuous sense 2.0 if it will improve the battery drain, can some of you give rough screen off current drain figures please? Especially sense based roms as that's what I would be using.
Thanks.
I used the 1350mAh battery for a long time and then finally caved in to get a Mugen Power 1800mAh. Since then Sense based or not my drain doesn't go below 15% for a full day Wifi (always on), Data (always on - when no WiFi) and Bluetooth on for 6 hours (during travelling).
I would suggest you do the same to get the peace of mind everyone deserves but HTC wasn't caring enough to pack in.
With a 1800mAh battery you don't even have to worry about anything, no matter what you try.
Interesting. It really makes that much of a difference does it?
Where do I get them?
Myrmidon83 said:
Interesting. It really makes that much of a difference does it?
Where do I get them?
Click to expand...
Click to collapse
Yup it does, mine is a 1900 mah from chi chi tec
I got my Mugen 1800 from eBay. But you can get it from their website directly. Beware of fakes! If it's too cheap to be true, it is.
Here's a tip, you really don't need much brightness indoors and turn off GPS, wifi when not using it, and screen timeout to like 1 minute.
gaarry said:
Here's a tip, you really don't need much brightness indoors and turn off GPS, wifi when not using it, and screen timeout to like 1 minute.
Click to expand...
Click to collapse
Way ahead of you, my brightness is always 10% ish, same with gps and wifi, fb every 4 hrs and mails every 6.
I'm now rooted with S-OFF on gingerbread stock. Gonna install cwm and maybe try a different kernel. Any recommendations as to one which will work with stock?
No idea on the kernel, but I really do suggest a bigger battery. I just went back to the stock one for a few days and it was noticeably less.
Myrmidon83 said:
Way ahead of you, my brightness is always 10% ish, same with gps and wifi, fb every 4 hrs and mails every 6.
I'm now rooted with S-OFF on gingerbread stock. Gonna install cwm and maybe try a different kernel. Any recommendations as to one which will work with stock?
Click to expand...
Click to collapse
Just use glite problem solved lol
I'm using bulletproof miui and my standby sits around 28mA with around 150-250 mA regular use. My battery lasts a full day with medium usage (4h screen on, wifi on, 18-20hrs unplugged total). I would say you're sitting a bit high with your battery consumption and could benefit from an undervolted kernel. I have my cpu clocked at 1ghz max these days..
Hope that helps!
Sent from my HTC Vision using xda premium
I'm thinking my battery just hasn't settled yet as I'm using the battery monitor app and it tells me I'm getting a 32mA draw with screen off but my battery is lasting only around 18 hours with light use and a lot of standby time. For a rough calculation: 1300mAh/32mAh = 39ish hours (standby), deduct 10 hours for messing around, I should be getting at least 24 hours I would think (very rough calculation).
Have only charged it maybe 5 times so far, its probably still being worn in as it seems to drain damn quick on standby at 32mA.
Possibly, do you know your voltage levels for each clock speed? I can get a good 35+ hours with light use and standby at night (~3 hours screen on with wifi connected always)
Sent from my HTC Vision using xda premium
I'm still on stock just now. Just realised that 'always on mobile data' was on, so I have turned that off as my sync apps will still work and I don't use push email. I'll try that over the next few days and see if it makes a difference as well as the battery getting charged with more cycles to break it in.
If that still leaves it to be desired, then I'm gonna put virtuous sense 2.0.0 on and use underclocking as that made a massive difference with my old wildfire.
What rom are you using bik_jack?
I'm using bulletproof miui but was getting roughly the same voltage numbers with cm7 nightlies before I switched to bulletproof in June.
Both underclocking down to 368mhz with the default undervoltage settings used in tsubus' kernel.
Sent from my HTC Vision using xda premium
i made a barebones stripped ROM based on the newest tmo OTA, i made optimizations to get better battery life, and stripped tons out to get the most ram possible, and keep the ui fast and snappy.
my newest version 1.3, offers the best battery life in any rom that i have ever used, its super fast (no need for OC), offers the most free ram and is located here :
http://forum.xda-developers.com/showthread.php?t=1324616
give it a try! im sure it will get u more battery life
Of course, now I've realised that my network (3uk) no longer have a 2g contract with orange, so all this setting does for me is stop me receiving txts and calls with it off. Tch. Looks like I will be trying virtuous after all.
The standby battery drain doesn't make sense at all, almost like my battery isn't really 1300mAh.
I use an Anker 1600mAh battery that I got off ebay in my DZ. The seller had a sale of 2 going on for $15, not a bad deal. link to it is here
It's listed for the Incredible 2 / Incredible S, but it seems those batteries are a perfect fit for the Desire Z / G2. Doesn't need any aftermarket casing or modding.
Right now, I am using the ICS beta by tazinator and yesterday I got ~12-13 hours of playing around with it very heavily. My battery can last 22-28 hours with moderate and light use on a normal day.
Sadly, I don't have any if those issues you listed, Dialer usage and such even with CM7. Used to use virtuous sense but went over to AOSP/CM7 instead. Found AOSP being more nicer on the battery, but that's just my feeling - I tend to think Sense drains more battery.
Yeah I think sense is a bit worse on the battery but I've really come to love sense, never really got on with cyanogen roms.
Turns out I was wrong about the data always on and my provider, it all works so I'll keep testing that before I start with roms.
I know mugen batteries are supposed to be good, any other recommendations for brands? I'll check the link out.
UPDATE: If battery monitor is to be believed, my global standby estimate is increasing with every charge, so maybe it is just a case of breaking the battery in. Now at 21.5hrs, I'll continue to monitor the situation, this might also be due to the change of data setting as well.

Battery Life Rom REALLY Needed

Hello all
I have been roaming around XDA for a very long time now and I finally made an account because I simply cannot find an answer. I have a samsung vibrant and not the 4g nor can I upgrade(long story). I use my phone when I need it and i text alot. But lately my battery life hasn't been any good, I've tried reconditioning and the whole bit and nothing seems to give me my needed battery life. I am currently using ICS passion 13 RC1 and it works great, when Im not doing anything -.-; When I use it like for the internet or text a lot it drains. I got to 48% in 2 hours one time and thats with limited background processes. I know ALL about the keeping background proccesses and data using apps down so I hardly have any apps installed, which is very irritating at times, I dont even use the facebook app for that reason. I tried many different roms and it seemed Axura had done that best at one point but it was taken down or is no longer supported for whatever reason so I am now in search for a rom that can get me through the day. I text a lot and web browse occasionally. I dont have wifi so i cannot use that to save battery life while surfing so thats out. I would appreciate all the help and will try every rom if i have to lol XD
I appologize for the long message but I am so tired of hesitating to use my phone as a smart phone.
I get good battery life on the ICS Euphoria ROM. Your battery could be shot, you might try replacing it.
Any of the 2.3 or newer roms are going to get bad battery life. Fishmanmod's updating of Bionics has been very smooth and getting great battery life for me.
I find that battery life between 2.2 and ics is pretty much identical for me as long as there are no wakelocks preventing deep sleep. I'm currently on CM9 nightly w/ glitch kernel and deep idle enabled in nstools and have no battery life problems.
You could also look into getting an official 1800mah battery if you really need more juice
ICS Slim hands down the best.
Sent from my SGH-T959 using XDA
Your issue is Passion. That ROM chews through battery worse than any I've ever used in the 2 years I've had my phone.
Sent from my SGH-T959 using Tapatalk
Its not just your Rom, I am on the CM9 nightly and noticed ICS ate my battery by noon today. I was down to 3% from 7am. Granted I am toying with it a bit more but I was still at work so I couldnt use it non stop and I wasnt even watching videos or listening to music on it. I have updated the kernel to SubZero 34 to see if that helps.
Chances are, your battery has lost some of its ability to hold a charge. I recommend buying a new OEM battery, chances are it'll increase your battery life by a good two or three hours.
So far, I haven't noticed a significant variation in battery use in various ROMs, I've found battery life to be more determined by the kernel.
Sent from my SGH-T959 using XDA
On a side note, I destroyed my screen by stepping on it a few weeks ago. Ordered a new AMOLED screen (not the LCD knockoffs) and battery life did in crease by about 3-4 hours. Same OS, same battery.
So I think some excess drain could be caused by the screen, which might explain why some phones had such poor battery and others don't. I also no longer have the "graying/shadow" issue that plagues some of these phone.
So far ive had the best battery life with ICS passion RC2.1 and my 1800mah anker battery
Since flashing CM9 and then putting on the SubZero kernel (34) I did a full charge and decharge to test and got 12+ hours on it with my normal use. So I have to say SubZero kernel really helps out if you are on ICS.
I f you dont mind going back to a 2.2 rom I would suggest trying bionix 1.3.1 fishmanMod or Deranged9 fishmanMod alpha 1 both get awesome battery life especially when mixed with juice defender.
I was also using ICS Passion and noticed a significant degradation in available battery life. I have three batteries so I'm confident it was the From. Until then I had been using various Froyo rooms and all seemed to have better battery life than ICS. I personally felt it was more likely to be your kernel choice that would impact battery life. I just switched to the SLIM ICS from and I gave been very impressed with both the battery and the responsiveness. Same quadrant scores as Passion but it feels so much faster
Sent from my SGH-T959 using xda premium
I haven't taken the dive into ICS yet i may have to try that out.
If you r searching for nice n smooth rom try
[4.0.4][6-Apr]Slim ICS [3.2]
http://forum.xda-developers.com/showthread.php?t=1520919
another thing you can do while flashing wipe battery stats only once....then reboot to normal drain your battery till it reaches 1% charge it full widout any interruption and when it reaches to 100% unplug it and do the calibration from any software available in the market I use Battery Calibration Professionals
https://play.google.com/store/apps/...2ZmZXNpb25hbHMuYmF0dGVyeS5jYWxsaWJyYXRpb24iXQ..
repeat the process for atleast 3 days in a row and you will feel the difference..hit thanks if it helps
@OP ICS is simply not battery friendly. You're going to want to use froyo if battery life is that important to you.
Or you can build a battery friendly ICS rom and let us know how it all is
The later builds of Cyanogenmod9 I have been on the stock kernel and its going all day with moderate use without battery issues.
Leafy_duk said:
Any of the 2.3 or newer roms are going to get bad battery life. Fishmanmod's updating of Bionics has been very smooth and getting great battery life for me.
Click to expand...
Click to collapse
+1
Bionix Fishman Mod is the first custom ROM I've ever installed on my phone and it's battery life is AWESOME. I recently added an 1800 mah battery and I've had 24+ hours on one charge with moderate to heavy use. The ROM itself is smooth as glass and no glitches to speak of.
Trying Bionix
Xdogg said:
I f you dont mind going back to a 2.2 rom I would suggest trying bionix 1.3.1 fishmanMod or Deranged9 fishmanMod alpha 1 both get awesome battery life especially when mixed with juice defender.
Click to expand...
Click to collapse
I just installed bionix-V FishmanMod Final 3. Fingers crossed. I don't mind switching back to 2.2 as long as I have better battery. However I did notice when I reinstalled ICS before going to bionix that just factory, not even logging into the market. I got 1 day and 7 hours of battery life, granted I did not do much but text occasionally and some web browsing here and there. Is it possible that the android market is constantly checking on stuff or there is some data being proccessed constantly? I do live in an area where my signal is not great for 3g like 1-2 bars.
Twist3db1ud said:
I just installed bionix-V FishmanMod Final 3. Fingers crossed. I don't mind switching back to 2.2 as long as I have better battery. However I did notice when I reinstalled ICS before going to bionix that just factory, not even logging into the market. I got 1 day and 7 hours of battery life, granted I did not do much but text occasionally and some web browsing here and there. Is it possible that the android market is constantly checking on stuff or there is some data being proccessed constantly? I do live in an area where my signal is not great for 3g like 1-2 bars.
Click to expand...
Click to collapse
Alright so after about a day with the rom, I noticed it's just as bad. I am still getting battery drain and yes I have a new battery in so it is not that. I unplugged it from around noon, did alot of working on it with reflashes and little bits of texting and mostly just scrolling around the O.S. im now at 44%. its been about 5 - 6 hours.
Although I have been switching the battery between 2 phones and their battery meter is very different. like a 5% difference so that may be confusing it. Will update.

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