Database Users

Battery Life Problem with HD2 - Help Reqd

So I finally got rid of my iPhone 3G (jailbroken on T-Mobile), and got an HD2 instead. I've always liked Windows Mobile phones (and had most iterations), and since now there is finally some capacitative goodness on WM, I jumped on the opportunity.
And I'm regretting it already.
I'm hoping that somebody here has some suggestion that my two days of thread searching, and experimenting didn't cover.
The problem is, yay, .... the damn battery.
I left it on the charger from totally empty to completely full at 2AM. At 8AM, it was down to 85%. Ten minutes of reading e-mails, 74%. The thing is really not usable in this state.
Here are all the things I checked already:
It runs the latest T-Mobile ROM and radio (the one that just came out a few days ago).
Latest version of .NET (3.5.9).
No push e-mail, e-mail checking once per hour, weather checking once per hour.
Strong 3G coverage area, still tried out WMLongLife anyway (with no difference).
Did several cycles of full discharge, recharge.
Always check task manager, not leaving programs running.
Nothing else is set to go online - Live is disabled.
Screen brightness is set at 30%.
All charges done via wall charger.
I read every post I could find, especially fun the ones where people get 4 days of standby, and 6+ hours of heavy use. Short of loading the ARTEMIS ROM, I exhausted all options I could find. And really, it seems like people get decent performance from the stock ROM, so I'd like to stick with that for the moment.
What am I missing?
So frustrating. I can see how this sort of thing would make the average "just user" go run for the Android or Apple hills. No wonder we get stuck with restrictive babysitting technology, when others can't get their **** together. Spend $450 on a phone that can't make it through a half day of reasonable use? Argh!!
Any suggestions would be greatly appreciated.

same here
i have all the same problems my batt just sucks i figure i have to just by a new one

hey man, i was like you at first too. all my mates had iphones (i dislike apple in general) i didnt want one. At the time o2 (uk) didnt stock android phones and i had a sony x1 previously. So, i got the hd2 and...like you said was disapointed.
Changed the rom to a custom one here at xda (hdowners btw) which lasts 1.5 days (heavy usage)...never seems to get 2 full days when i use it alot.
installed a few different browsers (opera 9.7 and 10)
installed morphgear (with some amazing landscape skins)
fpsece (i found time crisis to be the only actual playable game)
coreplayer
and found it a awesome phone...changed my views on it. Try some custom roms and see what you think...usually you will go mad installing themes, skins, apps...just go wild and keep the ones you really like/work in a seperate folder. Then reflash and install the best only...thats how i done it and i now love this phone
good luck, im sure the rest of the forum will give you some advice.

wayandrs: The main thing that will help is by upgrading the ROM even if it is to stock 1.66 (the latest UK one available) then you notice a large difference and even more so with some of the cooked ones. Other things to note are the WiFi, make sure it doesn't be left on (and only turn it on if you need it) it proper drains the battery. Without knowing your habbits with your phone it is very hard to come up with decent suggestions that hasn't already been posted elsewhere.
I can safely say I get 2-3 days use out of my device but then I don't use it all that much (anymore), don't forget as it is a new toy for you, you will keep playing with it seeing what it can do, this will soon die down (as it always does) then it will be better.

there must be something wrong with your device or battery.
mine lasts for about 3-4 days while middle use. i think for such a powerful and huge device, this is more than respectable.
heavy use...mh...i would say it lasts minimal 2 days, sometimes more.
did you write a complain to t-mobile?
DN41

The battery will improve after a week or so .
Note : charging your battery the first time for only 6hours isn't much , the first time that i charged my battery i left it charging for 24 hours.
Updating to the latest ROM and Radio helps .

I have two suggestions:
1) Take your phone back to where you bought it and let them deal with it. I get at least a full day with heavy use which is to be expected from a high end device with a 4.3 inch screen. I spent a few dollars on a car charger and an extra wall charger for work, sorted.
2) If you want help on these forums leave out the useless complaining about what a rotten device you have. I think I speak for many contributors of this forum when I say that these kind of posts are getting old and wearisome. You will be more likely to get polite replies with inteligent suggestions if you simply state the problem without moaning about the horrible mistake you made in being seduced into buying an HD2. I have purchased phones that I simply did not care for. I returned them.

First step: Flash a decent ROM with most of the performance/battery tricks in there already. Many of these ROMs are constructed from the best (often most battery efficient) parts of multiple ROMS.
Touch-X, Energy, Artemis, CleanEx, etc. All are excellent (though I favour Touch-X myself for a great utility/preformance/battery balance).
Second step: Flash a good Radio that works well in your area but also works well with the ROM/has decent battery life. You'll need to research this for your chosen ROM.
I use the Korean radio in UK. Good quality/signal/battery life.
Run it for a few days, charging to full and emptying the battery before recharging to full again. Do this for 3/4 days at least.
Those changes alone got me upto 2.5 days standby and 4 hours usage (thats movie playing for 4 hours with 100% backlight in a hotel room). Good for a smartphone and longer than my friends IPhones.
Other small programs like WMLongLife, adjusting down the backlight automatically, added another .5 days to standby (though not much to active use life).

ribcage said:
I have two suggestions:
1) Take your phone back to where you bought it and let them deal with it. I get at least a full day with heavy use which is to be expected from a high end device with a 4.3 inch screen. I spent a few dollars on a car charger and an extra wall charger for work, sorted.
2) If you want help on these forums leave out the useless complaining about what a rotten device you have. I think I speak for many contributors of this forum when I say that these kind of posts are getting old and wearisome. You will be more likely to get polite replies with inteligent suggestions if you simply state the problem without moaning about the horrible mistake you made in being seduced into buying an HD2. I have purchased phones that I simply did not care for. I returned them.
Click to expand...
Click to collapse
Yes, sorry I fell back on the usual retoric.
I do wonder though if when someone buys a new 'Toy' that they dont hammer it to start with for the 'joy' and never think of the consequences.
I like you, no matter which phone I own, being a businessman and needing maximum performance have a charger at my bedside (the phone is my alarm) and also connect it to the car charger when driving.
I wonder if many of the people that move up from a basic Nokia phone (or similar that can last a week) realise what is involved in powering all the functions they require?
Please don't quote iPhone as it dunt do half!

try elegencia rom v 8.5 and reply back

I use the stock rom 1.66 from the beginning and check my mail automatically every 30 minutes. Now and then I check some websites and download cabs and use HSDPA/3G and WIFI if available. My battery is 100% in the morning and 70 percent in the evening. Not bad at all. The first 12 times I fully charched the battery during the night.
I use Bandswitch, which automatically disables my connection within 30 seconds. This is the most important and useful tip! You don't need a custom ROM to solve the battery drain issue.

tarekkkkk said:
try elegencia rom v 8.5 and reply back
Click to expand...
Click to collapse
+1 - Lovely ROM

it looks like you have not a windows phone before

Thanks.
Thanks for the ROM suggestions. I'll try a few more days of deep cycling the battery to see if that helps - if not, I guess I'll try a custom ROM.
And yea, to those 'get a life' and 'don't complain about Windows phones' posts, whatever. I've owned Windows Mobile phones since they first came out, and it's just frustrating that the out-of-the box usability hasn't gotten any better to this day. Looks at the cool people that actually manage some constructive feedback - they are who make XDA forums great. Thanks guys!

A new 1200 battery is 15 pounds (the official from HTC) as a backup. I personaly have bought the extended battery 2400 and it is great. The default battery doesn't last the full day for me because I use it constinuosly as mp3 player , brownsing and video player. I mean, you have options.

ROM
I'll be trying the Elegancia ROM.
That is, once I find a ROM with 2.8 SPL that works on my 1024 version of the H2, to reflash mine so I can get HSPL to work to flash.
I've always really liked Windows Mobile for its flexibility and massive base of developers ... on the flip side, I've been screwing around with this thing for several days now, trying to get a phone that can last through a day. Ahhh, the bittersweet experience that is WM.

I get at most 2 days combined cycle out of my stanard battery and i've had my phone for about 10 days. It came with the stock 1.66 rom but i've run through the tips and tweaks threads so the phone ui is faster and a bit more usable. One of those is a replacement task manager that disables smart minimize in favour of actually closing programs. I've also set the weather software to update every 3 hours because tbh you don't need it to be any more often than that. I do use the wifi alot but i do turn it off when i'm not using the phone. i have also noticed with my phone is if the wifi is connected to an access point for more than 5 minutes it will automatically disable the 3G connection and turn it back on when the wifi is disabled.
for the first couple of days i was completely discharging the battery and then charging it for about 12 hours. this seems to have been the most beneficial. i also will not put it on charge unless it really needs it.

hi, from experience, 3G medium usuage.. 4/5 a day.
If you disconect the 3G connection when not using, it will help.
And of course if you go on GSM instead, one day is not difficult..
battery killer :
1) constant 3G activity
2) Watching video. Worst, video on 3G !
3) games, especially the 3Ds ones or high on processing like the Tower simulation game.
4) bright screen
5) bluetooth

From my experience, from a fresh flash, my battery improves as I get to use it longer and longer.

take a look at your data sync like weather and stock and also check the social networking sync.

[Discussion] Ava V10 battery life - Phone Specs

First off, this might be a topic for the general forum, but since is pertains directly to development, i thought i would put it here... Mods.. please move if you feel this is inappropriate.
There seems to be some HUGE differences with Ava v10 and battery life and i wanted to try and narrow down what the differences are to see what is up!
What i am curious about and would like you to post is the following:
Hardware Version
Screen
Kernel you are using
battery life / Usage
If we are seeing a pattern here then we should be able to determine the problem and hopefully yield some good data for devs to use. If it is still very random.. then its got to be an app that is causing the issues.

I will start
Hardware 003
Epson
Stock Kernel
8 - 9 hours MAX on moderate - use (lots of texting, some calls, and a little web browsing) Was getting WAY better on v9 before 3.30 update (v9a)

It is apparent the 3.30.2/3 has drastically ****ed battery life. There has been way too many posts about it to ignore it now.
It isn't HTC kernel 17 related like someone said earlier either. It goes deeper than that because I never run HTC kernels, not even for 5 minutes after installing a rom and I notice it very much. It appears that the current during idle isn't affected. And it isn't a rogue program PR anything keeping the CPU from idling. I dunno what it is. But it really is very noticeable.
I wish more dev's would realize it and make updated 3.29s with some of the new stuff built-in like the pnotification pulldown switch thing, and stuff like that.
Thanks azrael so far for not ignoring the situation. Lol. I'm sure HTC will put out a version 3.40.00 or whatever that has ackrite for all hardware versions. And then it will be easier on the devs

skydeaner said:
It is apparent the 3.30.2/3 has drastically ****ed battery life. There has been way too many posts about it to ignore it now.
It isn't HTC kernel 17 related like someone said earlier either. It goes deeper than that because I never run HTC kernels, not even for 5 minutes after installing a rom and I notice it very much. It appears that the current during idle isn't affected. And it isn't a rogue program PR anything keeping the CPU from idling. I dunno what it is. But it really is very noticeable.
I wish more dev's would realize it and make updated 3.29s with some of the new stuff built-in like the pnotification pulldown switch thing, and stuff like that.
Thanks azrael so far for not ignoring the situation. Lol. I'm sure HTC will put out a version 3.40.00 or whatever that has ackrite for all hardware versions. And then it will be easier on the devs
Click to expand...
Click to collapse
It seems only hardware version 0004 is mostly unaffected by the new frame software and I know the only difference is camera hardware but that may be it
Sent from my EVO at the edge of hell

Hardware: 003
Screen: not sure how to tell I am a newbie
stock kernel that comes with AVA V10
Right now I am home and not on the road working so my useage is lighter but I did go to bed last night with >50% life remaining and the phone had been off charger >15 hours
4-5 calls none were more than 5 min long
a little texting, couple emails (with polling every 30 min from 8-8), FB and Twitter updating at a regular interval (about every 30 min)
Bluetooth on for around 2 hrs, wifi on most of the day as I was at home using my home network so it was connected and not scanning.
Went to mall for about an hour and that has notoriously bad Sprint signal inside most places.

I ran the following:
hardware 002
Novatek screen
kernel: HTC 10, HTC 11, HTC 17, Kings #10 & #11 (both variants), Netarchy 4.1.9.1 & 4.2.1 beta (havs, no havs, bfs, cfs, smartass)
Some web browsing, facebook, texts, maybe 10-20 min of calls per day if that.
I'd get MAX 6-8 hours from fully charged to completely dead.
Went back to MIUI 11.19 and am consistently getting 15+ hours with moderate to heavy use.
If I try and run any ROM with the 3.30 file system, my battery totally sucks no matter which kernel I use.

Evo hardware version: 003
Screen Type: unknown (don't know how to tell)
3.30-ROMs tested: Ava V10, EViO 2
Kernels: various, in text
When I first switched to the first 3.30-based ROM, I noticed a big reduction in battery life. I tried another and ran into the same thing.
After one day on Ava V10, on a recommendation I tried the EViO 2 v1.6, along with the "netarchy-toastmod-4.2.1-bfs-bfq-nohavs-smartass-universal (No HAVS)" kernel, and with extremely light usage (1 short call, and few texts) after 19-hours I was showing an 89% charge. With this kernel the phone slept very well. The problem was that with that same kernel, even moderate usage sucked the battery very quickly.
So, based on things that I read I switched to the "netarchy-toastmod-4.2.1-bfs-bfq-havs-more-smartass-universal (More Aggressive Undervolting)". Using this combo, sitting on my desk with zero usage for 11-hours it was displaying 89% charge, so sleeping did not appear to be as efficient. However through the day, normal usage (moderate) seemed to provide a bit more time per charge. It did not appear to be a drastic difference.
On another recommendation, I then tried the netarchy-toastmod-4.1.9.1-cfs-NoHAVS-universal kernel. Overnight, no usage, after 9-hours I was again at 89% charge. Normal usage netted slightly worse time than the netarchy-toastmod-4.2.1-bfs-bfq-nohavs-smartass-universal (No HAVS) kernel provided.
Behavioral observation: The 4.2.1 No HAVS kernel produced slightly higher Quadrant scores than the 4.1.9.1 kernel did, but overall in normal operation, the phone was more sluggish and draggy on the 4.2.1 kernel, while being snappier and feeling faster overall using the 4.1.9.1 kernel.
Also, please note that the best battery time I ever got on any 3.30-based ROM pales in comparison to my experience earlier in the year with DC3.5 and an older Toastmod DC-compatible kernel. Once, after almost 21-hours off the charger, light usage throughout the night and at the very end of a 3+ hour phone call, I got the charge warning that I was at 15%. I don't know why I changed.
At this point I made an inquiry through a friend and was told that the difference between the 3.29-build and the 3.30-build was that the 3.30-build has a few small changes made to support hardware changes on version 004 Evo's only. I was also told that 3.30-build ROMs were not going to run well on 001-003 Evo's. I'm sure that is not absolute and they can be made to, but it may take some work.
Sorry for the novella, and I hope that it helps. Thank you for your time.

Hardware Version: 0003
Screen: EPSON
Kernel you are using: STOCK
battery life / Usage: MOD to HEAVY USAGE - OVER 25 HOURS on FIRST FULL CHARGE of battery!
NOTE: I also had AUTOKILLER set to STRICT during this entire time, and not to AGGRESSIVE.
Detailed post with pic showing my over 20 hour mark still in the GREEN:
HERE!!!
I'm now in the process of trying out Net-TM 4.2.1 CFS-HAVS-LESS AGG with V10.

bender1077 said:
Hardware Version: 0003
Screen: EPSON
Kernel you are using: STOCK
battery life / Usage: MOD to HEAVY USAGE - OVER 25 HOURS on FIRST FULL CHARGE of battery!
NOTE: I also had AUTOKILLER set to STRICT during this entire time, and not to AGGRESSIVE.
Detailed post with pic showing my over 20 hour mark still in the GREEN:
HERE!!!
I'm now in the process of trying out Net-TM 4.2.1 CFS-HAVS-LESS AGG with V10.
Click to expand...
Click to collapse
what was your "awake" time with this? This will be the tell.

When i ran ava 10 i got like 10 hours max. Alot of the 3.30 roms sucked my battery life. Fresh 3.3 rom gave me best battery life and i upgraded to his 3.4 and my bat sucked. Now im running airbourne rc4 and i think im getting the best battery I've ever had and its 3.30 based. It does have the sense launcher removed but all other sense is still there that could be the problem.
Novatek and 003

I decided to reload v10 and only restore a few essential apps and see where i was at. i did this, and had a full charge late last night.
This was with ALL settings defaulted to what is in v10 and no setcpu. The ONLY thing that i changed was the autokiller settings to "optimum"
It has now been 14.5 hours since i unplugged it (7 was me sleeping)
and "awake time" has only been 2.5 hours
It has been a pretty light day for usage - couple phone calls, mostly texts and emails and i am at 50%
This is MUCH better, but i really have not used my phone like i normally do. And this is with only a few apps installed.

frettfreak said:
what was your "awake" time with this? This will be the tell.
Click to expand...
Click to collapse
I think was a little over 5 hours. I'll have to remember to get a pic of that next time

bender1077 said:
I think was a little over 5 hours. I'll have to remember to get a pic of that next time
Click to expand...
Click to collapse
huh.. thats pretty good! lol... hmm..

a little off topic......how do you tell who made the screen on your EVO?

skydeaner said:
It is apparent the 3.30.2/3 has drastically ****ed battery life. There has been way too many posts about it to ignore it now.
It isn't HTC kernel 17 related like someone said earlier either. It goes deeper than that because I never run HTC kernels, not even for 5 minutes after installing a rom and I notice it very much. It appears that the current during idle isn't affected. And it isn't a rogue program PR anything keeping the CPU from idling. I dunno what it is. But it really is very noticeable.
I wish more dev's would realize it and make updated 3.29s with some of the new stuff built-in like the pnotification pulldown switch thing, and stuff like that.
Thanks azrael so far for not ignoring the situation. Lol. I'm sure HTC will put out a version 3.40.00 or whatever that has ackrite for all hardware versions. And then it will be easier on the devs
Click to expand...
Click to collapse
nYdGeo said:
...
At this point I made an inquiry through a friend and was told that the difference between the 3.29-build and the 3.30-build was that the 3.30-build has a few small changes made to support hardware changes on version 004 Evo's only. I was also told that 3.30-build ROMs were not going to run well on 001-003 Evo's. I'm sure that is not absolute and they can be made to, but it may take some work.
Sorry for the novella, and I hope that it helps. Thank you for your time.
Click to expand...
Click to collapse
So dont remember where I got this from (someone in another topic), but it completely confirms everything that we have been talking about...
NO 3.30 rom is made for hardware 001-003 period.. directly from sprint.
http://community.sprint.com/baw/com.../blog/2010/11/05/htc-evo-maintenance-releases
so the problem now is devs are either going to have to split their roms in to 2 branches (one for pre-004 hardware and one for 004 hardware) OR... sprint need to come out with a unified release. SO... hopefully devs will read this and make changes accordingly

Appropriate steps to a better battery life?

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.
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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.
Click to expand...
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!

Battery issues

Hi,
Not sure if anyone can advise.
I've got myself a DHD originally on Froyo but recently upgraded to Gingerbread. From day 1, been able to get about 14hours of light use while draining the battery about 70%
Was hoping for better performance with Gingerbread but doesn't appear to be much different. At the moment this week I've been taking it off charge about 7am, but 2pm it drops to about 80%, thats with either wifi on 15min sleep or on constant. Few texts, couple of Facebook checks, and couple updates on Storm8 games, so not a great deal from what I can tell. Yesterday I went to a customer site and was texting a bit in the afternoon while browsing net on and off and by 5.30pm this had dropped to about 40%. Bluetooth was on for 30mins while in car and quick call to missus and got home with 30%.
Trouble is I'm comparing it to my missus' new Desire S which can go a couple of days on one charge and loads of posts on Android Forums about people that are getting a lot more and better with 2.3. Feel something must be really wrong with my battery.
I've tried the tweak with fully charging, turning off plugging back in and waiting till green but couldn't get it green.
Not sure if there are any other techniques I can try or someone can confirm exact details so I can try again, and whether it does make a difference or my case seems correct.
Many thanks

So the battery life is the same as on froyo if I understood you correctly? A rom can't make any huge improvements so as long as the battery life is the same I would be happy. Regarding the difference between the DHD and the DS you have to remember that the DS has a smaller screen and a bigger battery.
Sent from my HTC Desire HD using XDA App

Please post this concern here
http://forum.xda-developers.com/showthread.php?t=819266
There is an existing thread about this topic....
Thread close.
Cheers,
M_T_M

[Q] 3g (internet), battery and overheat problems

I've had my samsung galaxy s2 for about 3 weeks now and I'm quite impressed with the phone (went from an nokia n97, to.this).BUT there are 3 things that annoy me.
1. I keep loosing my connection to the internet! Is there a way to fix this? It's pretty annoying to watch a clip on youtube, then have to wait 2 minutes on the middle of the video, to get the internet back on. (yes I'm in an h+ certified area.) The highest speeds I've een up to is,8,5 mbs.
2. Yes the battery.... On norwegian forums, people say theyre s2 lasts for about 2 days with moderate use. My phone lasts 1 day with nearly no use at all. (it's not the android os bug) the screen is usually threw main battery c consumer.
3. The phone gets extremely hot from time to time. Especially when paying games (can be the most simple game graphically, to dungeon defenders
I'm so sorry for any spelling mistakes and stupidity.
Thanks anyway.

Anyone? Had to bump due to my thread got pushed to page 3

Johandsom3 said:
I've had my samsung galaxy s2 for about 3 weeks now and I'm quite impressed with the phone (went from an nokia n97, to.this).BUT there are 3 things that annoy me.
2. Yes the battery.... On norwegian forums, people say theyre s2 lasts for about 2 days with moderate use. My phone lasts 1 day with nearly no use at all. (it's not the android os bug) the screen is usually threw main battery c consumer.
One day is more normal.
3. The phone gets extremely hot from time to time. Especially when paying games (can be the most simple game graphically, to dungeon defenders
Multiple threads /posts on the topics you posted .
Anyone? Had to bump due to my thread got pushed to page 3
Post in Q & A .
jje
Click to expand...
Click to collapse

I did read all the titles of the threads up to page 15 YESTERDAY. Might be that I was tired but I did not find any threads explaining these questions

DELETE, managed to double-post

Johandsom3 said:
I've had my samsung galaxy s2 for about 3 weeks now and I'm quite impressed with the phone (went from an nokia n97, to.this).BUT there are 3 things that annoy me.
1. I keep loosing my connection to the internet! Is there a way to fix this? It's pretty annoying to watch a clip on youtube, then have to wait 2 minutes on the middle of the video, to get the internet back on. (yes I'm in an h+ certified area.) The highest speeds I've een up to is,8,5 mbs.
2. Yes the battery.... On norwegian forums, people say theyre s2 lasts for about 2 days with moderate use. My phone lasts 1 day with nearly no use at all. (it's not the android os bug) the screen is usually threw main battery c consumer.
3. The phone gets extremely hot from time to time. Especially when paying games (can be the most simple game graphically, to dungeon defenders
I'm so sorry for any spelling mistakes and stupidity.
Thanks anyway.
Click to expand...
Click to collapse
Hi
The phone has a problem in general about signal (also dependent on your network)
I would suggest you flash the 2.3.4 firmware ( Use intratech's guide in the developement section ) It seems to solve a bit of the signal yoyo'ing
THe phone does get hot while playing certain games as I believe they are not optimised for the dual core phone in mind.
As for the battery Mine last around 15 hours with heavy usage , my screen is normally on for 5 hours in the battery usage ( am stock not rooted) and I am used to overnight charging.
I tried to keep the screen at 10% but it dont make much difference so keep it Auto now.
Hope it helps with few of your questions

That did help me alot! Thanks. Flashing to 2.3.4 takes away the warranty doesn't it?