Database Users

[Q] Battery problems... still...

Ok so I know I've posted about my battery before but I still can't get any relief.. I'm running JT .9 and geekniks 12/19 kernel.. the past two nights my battery drained 30% over an 8 hour period, with no one touching it! During both these nights I turned off Auto-Sync, and yes GPS and WIFI are both off..
Just now I had my phone charging and it was at 47%.. I rebooted my phone (just my normal procedure about once a day) and when it came back up a few seconds later it was at 69%!!! What gives?!?! Anyone have any ideas??
I have tried re calibrating the battery by deleting the battery stats method.. I tried calling verizon to get the battery replaced but was told that my battery is acting normal.. ive tried different kernels with no noticiable difference.. if i take my phone off the charger at 100% and send just a few text messages it will be down to 95% within minutes.. im at a loss.. I'll post pics of my battery use screen in a bit but throughout the night i only went 1% without a signal.

Maybe try *228 Option 2 ..... ??
I had a bout of some wicked battery drain and it was because I needed to update my roaming.....

slvrevoix said:
Maybe try *228 Option 2 ..... ??
I had a bout of some wicked battery drain and it was because I needed to update my roaming.....
Click to expand...
Click to collapse
I've tried that too.. question about that though.. I live about 30 miles from where I work.. should I update my roaming where I live or where I work or does that even matter?
Thanks for the response!

I have the exact same problem. Battery will drain for no apparent reason. I even bought a brand new battery, with still no luck. When I reboot the phone, as you said, something it will jump up 20%. I finally got fed up charging 4 times a day and ordered a refurbished phone. I'll let you know how that one works out.

papstar said:
I have the exact same problem. Battery will drain for no apparent reason. I even bought a brand new battery, with still no luck. When I reboot the phone, as you said, something it will jump up 20%. I finally got fed up charging 4 times a day and ordered a refurbished phone. I'll let you know how that one works out.
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Click to collapse
Please do.. Verizon give you the phone or did you just pay out of pocket?

Turn your 3G off overnight if you're not on the charger.
Wipe batt stats in CWM/advanced, charge until you get the full battery popup

NOsquid said:
Turn your 3G off overnight if you're not on the charger.
Wipe batt stats in CWM/advanced, charge until you get the full battery popup
Click to expand...
Click to collapse
I've tried wiping battery stats in CWM.. not sure how to turn off 3g.. Juice defender did it when I ran that but I didnt see an improvement and I didnt like the fact that it turned off 3g everytime my screen was off because then I don't get push on my emails.

Juice Defender has an on/off widget for 3G

Powell730 said:
I've tried wiping battery stats in CWM.. not sure how to turn off 3g.. Juice defender did it when I ran that but I didnt see an improvement and I didnt like the fact that it turned off 3g everytime my screen was off because then I don't get push on my emails.
Click to expand...
Click to collapse
although Juice Defender turns off your 3g when the screen is off, it also turns on your 3g for 1 minute every 15 minutes, so push notifications will be seen every 15 minutes (which I find totally acceptable to dramatically raise my battery life)
Just an fyi in case you didn't know.

Dalamar1320 said:
although Juice Defender turns off your 3g when the screen is off, it also turns on your 3g for 1 minute every 15 minutes, so push notifications will be seen every 15 minutes (which I find totally acceptable to dramatically raise my battery life)
Just an fyi in case you didn't know.
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Click to collapse
yeah i was aware of that but i also didnt notice my battery life improve enough to use it.. if i would have noticed a dramatic improve i would have kept it.

At first I didn't notice an increase either, but after a day or 2. I get over 50% battery now

I just started charing my phone again.. it was at 70%.. i rebooted my phone and it jumped 14% to 84%... is it possible that the battery meter is just not accurate and when I reboot my phone it recalibrates everything and displays a true reading?

I can't remember where I read it, but I read that the phone doesn't portray an accurate reading. . If you charge to a hundred percent, the phone reduces the amount of power coming in but still shows full till removed from the charger, then it drops fast. Supposedly once it gets down to a certain percentage it starts charging again in bursts. This could explain why rebooting changes your percentage since the OS is showing the inaccurate reading.
I don't know if this is true or not, just something I read.

There's an excellent explanation of this here on xda. The thread is called "Your battery gauge is lying to you (and why that's not such a bad thing)" & I wish I could remember who wrote it so I could give him credit.
Sent from my SCH-I500 using XDA App

Powell730 said:
Please do.. Verizon give you the phone or did you just pay out of pocket?
Click to expand...
Click to collapse
I called VZW's Customer Service and told them about my issues and they sent me a refurbished one. Just got it today, and so far, I'm having the exact same issues.

I am only here because a friend of mine is looking to get a Fascinate and I was doing some research for him.
I have an Evo, and I gotta say, you only lost 30% in 8 hours? Lucky you! The Evo, when it first came out would only last about 8 hours off the charger from a full charge, without touching it. The state of things now is a lot better. I can go 16 hours off the charger and still have 70-50% battery left depending on how much I used it.
The biggest changes have been custom undervolted kernels with HAVS, CPU underclocking with screen off, and "SBC" which probably just stands for super battery charge.
The SBC kernels for the Evo fix the issue of the battery dropping to about 87% minutes after taking it off the charger. It changes the charging behavior after full charge, maintains a trickle charge to hold battery voltage at 4.2v instead of burst charging intermittently once "full"
You guys might want to have your kernel developers look over here and probably see if some secrets can be passed along:
http://forum.xda-developers.com/showthread.php?t=876590
There's a neverending cornucopia of battery improvements over in the Evo forum and I'd suggest you guys go make a search over there for "battery" because tons of the same fixes are going to apply here. Good luck

papstar said:
I called VZW's Customer Service and told them about my issues and they sent me a refurbished one. Just got it today, and so far, I'm having the exact same issues.
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Click to collapse
I had a lot of similiar issues with battery life, and I found different kernels and roms have a huge effect on the battery:
Every StupidFast kernel I tried would *significantly* increase battery drain over stock. I'm talking 4-5% per hour overnight with the phone idle and not being touched or doing anything whatsoever - no GPS, no Bluetooth, no WiFi, no apps running, just sitting there.
Every BlackHole ROM I tried would do pretty much the same, although not quite as drastic.
JT's SuperClean was consistently very good on the battery.
On DI01, I was using SuperClean .4 on the stock kernel and getting a solid 24 hours on a charge. With DJ05, there is no stock kernel, and I had issues with SuperClean and signal strength, so I'm using the 12/12 kernel with the stock rom (debloated) and I'm getting 72 hours on a charge with conservative use and easily 48 hours with moderate use.
If you're using StupidFast, I'd suggest flashing one of JT's kernels or stock (if you're still on DI01) and see what difference it makes.

I finally am getting decent battery life.. I did a clean wipe and installed black hole 2.4 with jt's 11/29 kernel and have noticed a great improvement! Only problem is I get the audio popping with this kernel but I'll live with that as long as my battery is better.
Sent from my SCH-I500 using XDA App

So I've gotten my second refurbished fascinate from Verizon, and my battery life is still atrocious. However, how much does signal strength affect battery life? I get a dismal signal at my house, where my battery seems to drain like crazy. Can anyone confirm the relation?
Sent from my SCH-I500 using XDA App

papstar said:
So I've gotten my second refurbished fascinate from Verizon, and my battery life is still atrocious. However, how much does signal strength affect battery life? I get a dismal signal at my house, where my battery seems to drain like crazy. Can anyone confirm the relation?
Sent from my SCH-I500 using XDA App
Click to expand...
Click to collapse
They are directly related. If your phone if constantly trying to find a signal then this will drain your battery. Are you rooted, or totally stock?
Sent from my SCH-I500 using XDA App

My experience with flashing in the pursuit of better battery life.

So I upgraded my Pre for the EVO when it came out and have been using the same phone and battery since getting it. I found XDA and immediately started rooting and flashing. I started with Fresh and DC when those were about the only options. I use my phone fairly heavily as I am almost always listening to downloaded radio shows either thru a plugged in headset or a jawbone icon BT set. I would say that I averaged about 8 hours of battery life no matter what ROM and kernel combo I tried. This is everything from Fresh, DC, Virus, Warm, CM6, EViO, Evo-NonSense, MIUI, and all of the applicable kernels. The best I had gotten with all of the various combos was a little over 16 hours (with an SBC kernel), which I thought was AWESOME! Needless to say, I used Warm TwoPointTwo (including betas) for a while and touted its look, feel, performance, ease of use, and feature set alongside an SBC kernel.
I ALWAYS keep an eye on the development section for something to pique my interest and pull me away from my current setup. After trolling Lucid's thread for cm7 for a while, I took the dive when the official cm7 nightlies started rolling out. I have been with cm7 ever since. I also took advantage of savage and zendroid kernels and now savaged zen.
The longest I have gone so far is 2 days 10 hours! How? Well...conservative governor on an SBC savaged zen kernel and toggling mobile data off when not in use. Will that same setup work for you? Maybe. Unfortunately all EVO' s are not created equal.
Moral of the story? It takes alot of time, reading, and work to find the thing that works for your EVO. It was a pain to find the right combo, but it is worth all the work.

Thanks for your post. When you got the battery to last over 2 days, it looks like the phone mostly sat there, am I seeing that incorrectly?
I, like you, have tried all different things with the Evo trying to get battery and performance. I am locked on MIUI right now, it gives me the best of both worlds. If you want to try a Sense rom, try Ava's stuff. When I get "bored" with MIUI I will go back to Ava.

lehalter said:
When I get "bored" with MIUI I will go back to Ava.
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Click to collapse
God will kill a kitten if you switch from MIUI. You don't want that on your conscience now, do you?

Yeah it really depends on your usage without it the 2 days 10 hours don't mean much. 2 days is no problem if I only use it to make a couple of calls. every 8 hours it only loses 4% charge when untouched with autosync on. The evo battery isn't bad it just takes tweaking like the op says

I get on average two complete days on a charge. With heavy usage I het like a day and a half, with light usage I can go 3 days. MIUI 1.1.28 w/ savage 1.6 kernel. I used to shut off my data too when I wasn't using it but with the MIUI build I'm on, I don't need to.

I really don't trust the battery use(in settings) in CM7 at ALL. I had my phone plugged into my car charger for 45mins on the way home tonight I unplugged it at 7:38pm.
It is now two hours later(10pm) it is showing I have been unplugged for10h55m9s on the posted screenshot. Then if you look at the other screenshot my battery indicator pro is showing the correct amount of time since unplugged.

I've noticed that the battery stats in cm7 do not reset unless you fully charge your phone. Otherwise it continues the count even if you plug a charger in.
Sent from my PC36100 using Tapatalk

_MetalHead_ said:
I get on average two complete days on a charge. With heavy usage I het like a day and a half, with light usage I can go 3 days. MIUI 1.1.28 w/ savage 1.6 kernel. I used to shut off my data too when I wasn't using it but with the MIUI build I'm on, I don't need to.
Click to expand...
Click to collapse
MetalHead, do you overclock/undervolt? If so, would you mind sharing your settings? Lastly, have you noticed an increase in browser speeds since you flashed MIUI and tweaked your settings?

I know I need to come up with something. my battery drain is friggin' horrid.
Unplug @ 100%, turn the screen on, let it sit with nothing, pretty much, running in the background and in 10 minutes will be down to about 93%....
Tried several different combos, but all are pretty much the same results...

taadow1030 said:
MetalHead, do you overclock/undervolt? If so, would you mind sharing your settings? Lastly, have you noticed an increase in browser speeds since you flashed MIUI and tweaked your settings?
Click to expand...
Click to collapse
I overclock at 1152 with smartass governor 98% of the time. Savage 1.6 is a HAVS kernel so I guess technically it is undervolted. I honestly couldn't tell you about the browser speeds, I've been on MIUI since the beginning of November so I really have no clue what the browser speed on a Sense ROM is. Everything is a lot faster with MIUI so I'm assuming my browser speeds have also increased.

HipKat said:
I know I need to come up with something. my battery drain is friggin' horrid.
Unplug @ 100%, turn the screen on, let it sit with nothing, pretty much, running in the background and in 10 minutes will be down to about 93%....
Tried several different combos, but all are pretty much the same results...
Click to expand...
Click to collapse
This is typical, unless you use an SBC kernel, bump charge your phone, or unplug it exactly when the light turns green.
Any non-SBC kernel will not keep the phone at 100% charge while on the charger. Some will argue that doing so is dangerous for the battery or methods like bump charging put too much wear on the battery.
This is most likely the reason that phone companies rarely have a true percentage shown on their batteries, because they all do this. If we didnt mod to get that real number shown, you would think your phone was acting just fine.
Personally, if I am really going to be using my phone a ton in one day, Ill bump charge it, but otherwise I just accept that its going to drop that first 10% really fast.
The best measure imo of battery performance is how much % you lose when the battery is somewhat discharged, and off. Every phone will drain while you use it, but most of the hours of a day, your phone is off and idle. If you lose 1% per hour, or 5% per hour, that will make a huge difference in your up time per charge.

Unfortunately, mine doesn't stop at that 10%. For instance, mine came off the charger at 5:30 AM at 100%.
By Noon, it was down to 70%, and I had 1 - 3 minute call, no texts and maybe 20 minutes of playing Klondike before work.
I guess I'm gonna have to go SBC. Worst that can happen is I end up buying a new battery, just incase it does so it in.

So in 10 minutes you drop 7%, and in the next 6 1/3 hours you drop another 23% with moderate use?
That sounds like pretty typical battery results to me, thats about 26 hours uptime with a fair amount of use. But maybe others could chime in.

Dude, 5 hands of a card game is NOT moderate use. It's practically no use. Klondike doesn't use data, GPS, etc... nothing, except minimal graphics.
The one phone call literally lasted less than 5 mins, so yes, a phone that drops 30% doing nothing is drastic.

I seem to get pretty good battery life on Myns rom.
I can go at least 24 hours with moderate usage, all on the stock kernel.

Looks like I may have found a little better stability with the Netarchy-Toast CFS 4.3.2 Havs SBC less.
30 minutes of moderate use today and it only dropped 5%

The best battery life I have gotten is from Feb 09 Plutonium.

Miks 4.5 4.2 sbc, gps on updating all every hour call, text, surf, angry birds all freaking day, and get 14 to 16hours every day

MIUI
Wow i have been wanting to try MIUI for a while and i definitely will now.

I'm getting pretty bad battery life with MIUI 2.11 on hw 003. Can anyone recommend a good kernel? I'm hesitant to try the SBC kernels based on the potential battery damage, so savaged-zen is out, also savage-zen seems to have issues with usb mounting.
Is there a link to savage 1.6 CFS, which I've read in a number of threads now is a good one. Speed is not imp, stability, bt+usb working and battery life is.

[Q] What's your Battery Life after EB01

I hear constant griping about battery life since EB01. So I was curious what amount of time are people getting on their full charge? I am getting about 13hours. Definitely less than before but tolerable. Have done all the battery wiping techniques. Why is there such a different between users?

I get about 15 hours of good use out of it since updating to EB01. this is with moderate use.

After about 18 hours, I'm generally ~1/3rd the battery left. I'd say a large part of the variance is how we actually use it. I think it'd be good if at the end of the day, you wrote down the unplugged time, the % remaining, the % of the top several items in battery use, as WELL as the actually amount of time for each of them. Right now 'display' has used 41% of my battery, but only been on for 11m45s (the phone has been unplugged for 6h45m, with 72% remaining).
Without the full context, it's extremely hard to actually have any idea what's going on (terms like 'light'/'heavy' use are totally meaningless). One person that regularly gets 2 days (depending on my use I can easily), vs a person that can barely make it through a day... that doesn't mean that the latter person's phone is messed up, they might stream LOTS of music & videos, while the other leaves theirs in airplane mode half the time.
Edit: I'm on SC 2.1, with GPS, all location services, WiFi, and auto rotate off. I leave sync on always, and I'm nearly to 9 hours now... with still 72% remaining... and just dropped to 71%!

Horrible... with vanilla froyo v5 it was amazing, but every other has been almost intolerable. Sc2.4,blackhole,gingerbread... I've tried all of them, for several batt cycles. On second day of miui, ill report in a few days. I've always flashed at full battle, never have GPS or wifi on, turn sync off a lot, and always have my screen turned down. I'm at around 10 ta 13% drain an hour
Sent from my SCH-I500 using XDA App

I know I said I was getting 12-13 hours. Well I did the battery script download and am now at 63% after 12 hours. I would highly recommend giving it a try. It didn't seem to do anything the first day. More the second day couldn't be happier.
Sent from my SCH-I500 using XDA App

SC2.2 nonvoodoo with no power management apps. Overnight off charger for 8 hours battery loss is about 3%. My typical numbers starting from a full charge averaged below.
Screen 3.5 hours.
Calls 45min.
Gmail sync avg. 20 emails.
SMS avg. 30
TWS +/- 4%
BW weather updates hourly.
Those numbers usually get me to about 15-20% battery. So with that usage it can be done in one day or I have also stretched that usage over 2 days.
good day.

Anybody try any of the battery saver apps like super power or juice defender? I have tried juice defender but it wasn't toggling data so now I'm trying superpower & it toggles fine but keeps the phone in partial wake according to spare parts so I wonder if there's any real benefit... I'm now down to 11% after 10 hrs off the charge.
Sent from my SuperClean'd SGS

After trying the battery wipe script, and several battery cycles, I'm about 1/3 less battery life than I was on DL09. I'm hoping once we get source, we can get a LV optimized kernel to get it back to where it was.

garywojdan81 said:
Anybody try any of the battery saver apps like super power or juice defender?
Click to expand...
Click to collapse
I used Juice Defender back on DL05, but found that it made my battery run down faster AND it'd cause many of my apps to update inconsistently (using both the default setting, as well as others). Even after disabling, and then uninstalling it, my sync settings were screwed up until I flashed EB01.
I'm not going to trust any of those apps again... thinks work better if you just find apps that aren't power hogs (such as constantly polling the network!).

Back on DL09 SC 0.9, with Adrynalyne's undervolted Voodoo kernel, I could get two days with light usage without trying very hard. Now on EB01 SC 2.4, I struggle to make a full day. Not sure if the drain can be fixed with working kernel source code or not, but I imagine it will help a lot. Until then, I can't bring myself to go back to Eclair again, so for the moment I'm putting up with the poorer battery life and lack of Voodoo sound.
Posted from my EB01 SuperClean Fascinate with Voodoo

Battery drain issue with sc 2.9.2v

I was under the impression that the battery drain issue was fixed with new sc 2.9.2. Anyone else still having issues?
Sent from my superclean 2.9.2 voodoo awesomeness using XDA App
Edit: Apparently i was seeing things when i read new updates. No fix in SC. Back to waiting for my phone to die.

I don't have battery drain issues
Sent from my SCH-I500 using XDA App

Im only having problems with voodoo kernels. Flashed ec10v last night and had same issue. disabled voodoo and flashed back to eb01. did full wipe this morn and installed sc 2.9.2v and im back to same battery issue. its irritating.

No issue for me
I am actually seeing much better battery drain... I am on SC2.9.2V
im unplugged almost 4.5 hrs and im at 95% still....

sigh... working on battery calibration now. i have to leave for work soon so w/e i do it has to be now. lol. no comp access at work so i cant odin cwm if i break it. might just flash back to sc 2.9.2nv till i have time to play.

My 2.9.2. dropped 5% in 15 minute idle state.

xHoLyx said:
My 2.9.2. dropped 5% in 15 minute idle state.
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Click to collapse
Ouch... lol. Mine is about that bad. 15-20% an hour idle and 10% in 20 min just using xda app.

phoenix727 said:
Ouch... lol. Mine is about that bad. 15-20% an hour idle and 10% in 20 min just using xda app.
Click to expand...
Click to collapse
I feel your pain. In my case, and maybe yours, I think the culprit is the horrible coverage verizon gives me.
Sent from my SCH-I500 using XDA App

papstar said:
I feel your pain. In my case, and maybe yours, I think the culprit is the horrible coverage verizon gives me.
Click to expand...
Click to collapse
Attempting calibration. I will get back to you guys, once I finish, with the method I used.

phoenix727 said:
Attempting calibration. I will get back to you guys, once I finish, with the method I used.
Click to expand...
Click to collapse
Let me know how it goes. I've tried a dozen times with no luck. Maybe your method will work better.
Sent from my SCH-I500 using XDA App

Does your battery drop to 0 that fast?
I have had a time where by battery dropped 15% within 1-2 hours, but then I was stuck on a certain percentage for hours.

Hello, I started a thread 2 weeks ago and it has some good info there. Take a look.
I update the OP regularly adding post made by others. No one has posted anything in a week. If you find how to fix your problems please post it there and I will add it to the OP. Its up to everyone to keep that thread alive.
http://forum.xda-developers.com/showthread.php?t=987529

I've had issues as well. Mine are related to GPS wakelock. Every fresh boot I will consistently get a partial wakelock of 100% because of the GPS. Simply opening Maps and closing it will force the wakelock to release.
I'm curious as to why others aren't having this issue, yet some of us are?
I've tried the EB01 modem as well as the DL09 modem and its the same results. Aside from this, battery life is great...

phoenix727 said:
Ouch... lol. Mine is about that bad. 15-20% an hour idle and 10% in 20 min just using xda app.
Click to expand...
Click to collapse
When you say 'idle' do you mean like zero apps running (like stopping everything running via a task killer). Then what,, like keep the phone's screen lit up by not letting it sleep and monitor the battery drain over a period of time? I'll have to try that and see how mine does. I'm guessing mine will prolly drop 15-20% as well if I have the screen lit for a solid hour.. hmm
I didnt really think mine was working 'bad' though, I just figured thats about what these batteries in these could do. I can make it though a day without a re-charge but I admit I have to budget my usage of the phone thoughout the day.. not using it for long solid periods of time and such.. If 15-20% an hour drain would be considered 'bad', how much should it drop in an hour to be considered working 'well' in your opinions?

Well I spent all day charging, using and then recharging my phone. it died in about 5:45 hrs of med to heavy use. I used the method outlined in this thread. http://forum.xda-developers.com/showthread.php?t=987529
I lost 5% battery in 45 min this morning which would have been nice but it was idle in my pocket. :-(
I gave up... reflashed 2.92nv and im checking to make sure its not having same issue.
If anyone has more suggestions there are now 2 pages i found for this problem specific to the facinate.

My battery is pretty decent after clearing battstats. Heavy use I'll lose about 13% per hour. Idle is decent, 3-5% per hour.
2.9.2 ec10voodoo

Ok I did a little test with mine - I set my LCD screen timeout setting to 10 minutes, turned my wifi and gps off (left the cell radio on), killed all apps that were running in task manager. Then I sat the phone down on my desk with the screen lit up and tapped the screen every 8-9 minutes or so just to keep it from going to sleep for one solid hour. I didnt do anything else with or use the phone in any way during this time. My battery dropped 18% in one hour. Think I'll try the batt stat clear procedure and redo the same test and see if its any different.

Mine is horrible. For some reason, it drains in proportion to my use. If I use it constantly, and hardly put it down, I'm lucky to only get 6 hours out of it.
I don't get decent life unless I put it in airplane mode, turn off rotation, and don't use it. Then I'm good for
16 - 18 hours.
WTF¿
Sent from my SCH-I500 using XDA Premium App

I can understand getting 6 to 8 hours if your a heavy user. but Im only concerned with my idle battery use. Juicedefender help some what. you can get it on the marketplace.
I'm still having the same issue with the nonvoodoo version. I'm still not sure how some users are getting over 40 hours of battery life.
as far as I can tell recalibrating my battery had no effect on the battery life. I plan on trying to recalibrate 1 more time in case I messed up the process. I will post my results in a day or 2. good luck to the rest of you. if you find anything out that may help me or anyone else please post it here
Sent from my sc 2.9.2v not so awesome battery eating monster

Kaze105 said:
Does your battery drop to 0 that fast?
I have had a time where by battery dropped 15% within 1-2 hours, but then I was stuck on a certain percentage for hours.
Click to expand...
Click to collapse
No... not me at least. Just drains and drains and drains and.... U get the point.
Sent from my sc 2.9.2v not so awesome battery eating monster

Anyone else getting poor battery life with EC05?

I have the device on auto-brightness settings. I will say that the auto-brightness IS pretty bright with EC05. MUCH brighter than other versions. Anyone else noticing this?
I came from EB13 and I got excellent battery life. So far, today, while getting full bars:
Time on: 7 Hours 21 minutes since unplugged
Time on display: 56 minutes (86%)
Voice calls: 8 minutes
Total battery left: 32%. That's a far cry from what I was getting with EB13.
Otherwise, I'm pretty happy with this version! Although, EB13 was awesome as well. I just had a bit more force closes here and there on EB13.

Took mine off the charger around 8am with moderate use mine tanked around 6. I also live in an excellent 3G/4G area.
Sent from my SPH-D700 using XDA App

Be patient, it will get better in couple weeks.
Sent from my SPH-D700 using XDA App

Any reason why?

Its probably the brightness broham. Try turning it on manual and keep it as low as possible. The screen is the biggest stress on the battery. The brighter the background the worse the battery life as well.

re: waiting a while... the battery gets 'conditioned'... look up one of the MANY threads on that subject on here... some you have to be an astrophysicist to understand, but interesting nonetheless. Re: brightness, yeah, turn it on manual, set it on lowest poss setting, indoors most of the time its plenty bright, and if your ROM didnt disable it (idunno why they would) hold down your status bar and a little drop thingy comes down, slide L or R for brightness, like for outside, or if you really wanna make an EVO user sad and show off the AMOLED mmmmm..... contrast ratio and black levels....

This is some of the best battery life I have gotten out of this phone period. Its so good I dont even want to flash a custom ROM. I have brightness turned down. F that auto brightness..I hate that feature. I unplugged today at 6 in the morning...Played on it before work....Played while at work.....Some more after work...A little while driving...(dont judge me) ....... And now Im on it playing poker online. I love it. Im so serious about not flashing a custom ROM. I am loving this new update and its battery life.

DangerZone1223 said:
I have the device on auto-brightness settings. I will say that the auto-brightness IS pretty bright with EC05. MUCH brighter than other versions. Anyone else noticing this?
I came from EB13 and I got excellent battery life. So far, today, while getting full bars:
Time on: 7 Hours 21 minutes since unplugged
Time on display: 56 minutes (86%)
Voice calls: 8 minutes
Total battery left: 32%. That's a far cry from what I was getting with EB13.
Otherwise, I'm pretty happy with this version! Although, EB13 was awesome as well. I just had a bit more force closes here and there on EB13.
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This is EXACTLY my usage patterns and battery for the last 2 days. The only way I'm getting 14 hours out of this thing is if I don't turn it on once. And fixing the brightness isn't going to help me too much if it loses 80% just sitting there idle is it? I'm pretty close to just flashing it back to DI18, declining updates (or flashing the Syndicate rom from that era) and just living with it. For the record, I also had miserable battery with everything DK28 and EB13. Perhaps my phone just doesn't like Froyo?

youngpro83 said:
This is some of the best battery life I have gotten out of this phone period. Its so good I dont even want to flash a custom ROM. I have brightness turned down. F that auto brightness..I hate that feature. I unplugged today at 6 in the morning...Played on it before work....Played while at work.....Some more after work...A little while driving...(dont judge me) ....... And now Im on it playing poker online. I love it. Im so serious about not flashing a custom ROM. I am loving this new update and its battery life.
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No playing on the phone while driving.... lol I do it all the time too. Im on here alot while driving.
Sent From My Evo Killer!

I keep hearing about not all batteries are equal I wonder how true that is. I just flashed the ACS SyndicateROM Frozen 1.0.2 and I am curious to see how my battery life is on the road tomorrow..errr...today at this point.
I know if I am using it off and on pretty constantly I get no more than 6hours with moderate activity (email, web, occasional phone call) we will see what happens now that I am on this ROM.
I told myself I wouldn't go to a non-factory ROM but this is stable, runs the processor with less power @1GHz and with the click of a button you have on-demand 1.2GHz.
A few other things I noticed is the interface is MUCH snappier even though I am using the TouchWiz launcher and the "Fully Loaded" Version I can't wait to see how it goes.

After 2 days on EC05 my battery life is ok, but not as good as when I used a custom undervolting kernel. After 12 hours I'm at about 40%. Today I'm going to try using setCPU to run a different profile and see if it works or makes a difference.

i havent seen good battery life since 2.1 :/ i used to get 24 hours of use with epic experience and the phoenix kernel.
no way im going back to 2.1 just for battery life. although it is the most important thing to me
Sent from my SPH-D700 using XDA App

I have bad battery life with EC05. Tested today with only 3 texts, and two 10 minute phone calls.
8 hours of standby time and I've burned 5.25% of battery per hour.
Wifi on 99% of the time and within range. Policy = never sleep
Same usage for the weekend on DI18 I'd be around ~85% rather than my current 57%.
My battery life is even worse for work days when I have Lotus Notes Traveler sync scheduling every 15 minutes.
DI18 end % of 8 hours of work = ~70-75%
EC05 end % of 8 hours of work = ~43%

worldwidepmp said:
Took mine off the charger around 8am with moderate use mine tanked around 6. I also live in an excellent 3G/4G area.
Sent from my SPH-D700 using XDA App
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Just to follow up, I flashed back to Bonsai 4.0 and unplugged at the same time today(8AM.) it's now 8:00p and I'm at 66% battery with just about the same amount of moderate usage.

usfslacker said:
This is EXACTLY my usage patterns and battery for the last 2 days. The only way I'm getting 14 hours out of this thing is if I don't turn it on once. And fixing the brightness isn't going to help me too much if it loses 80% just sitting there idle is it? I'm pretty close to just flashing it back to DI18, declining updates (or flashing the Syndicate rom from that era) and just living with it. For the record, I also had miserable battery with everything DK28 and EB13. Perhaps my phone just doesn't like Froyo?
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Take it in and tell the sprint rep. Maybe you could get a new battery for free. if not you may want to buy one.

Automatic Brightness says that it will hurt your battery more then manually setting your brightness. Gosh, no wonder why so many people complain about battery life. No one can read anymore. Seriously, my battery life is the exact same as DI18 as it is on EC05. Learn how to use your phone efficiently.
Also take into account EC05 is Froyo, and DI18 is Eclair. A big difference in how they have to be treated. You will hurt your battery more doing certain things in Froyo then you did in Eclair, one example is Task Killing.
And if you dare to have the nerve to disagree with me, I'll redirect you to "Poor Battery Life" threads from EVERY SINGLE DEVICE on XDA. I doubt every carrier and company is making the battery life horrible, nah just the users.

Does that mean we should NOT kill tasks on froyo?

hold down your status bar and a little drop thingy comes down, slide L or R for brightness, [/QUOTE]
See, thanks for that info. I thought that feature was disabled on froyo builds. Even with you saying it works, its very rare that it works for me. On 2.1 it was so easy to swipe and adjust it....
Sent from my SPH-D700 using Tapatalk

I'm getting some pretty good battery life with ec05 so far. Right now I'm at 13% battery and here's the usage:
23hrs 39mins
display 78%, 1hr 49mins
cell standby 12%, tws 30% (I still get that bug from time to time, but not always like before)
voice calls 7% 19mins
phone idle 4% 21hrs 50mins
I had odin'd back to di18 and got ec05 ota friday morning, still not even rooted. I keep brightness at the lowest setting and use a black background.

slybarman said:
Does that mean we should NOT kill tasks on froyo?
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Yes, you should not kill task or applications at all in froyo.
Sent from my SPH-D700 using XDA Premium App