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Still getting bad battery.

Okay so I have always had bad battery, but this is a bit extreme.. I am using Suckerpunch build 40 and Serendipity and i am heavily undervolted. I got about 6 hours of moderate usage out of it today before it died. (some gps usage, browsing xda, 40 texts back and forth, internet browsing) I am using JK3 modem with HSUPA enabled.. but i feel like this battery drain is a bit excessive. Any ideas?

If it isn't an app that is polling too much or it isn't a low signal issue, then I could only blame the hardware for being defective. That combination, even with the 1400 overclock has yielded me easily over 24 hours with moderate usage. Even now, I have gone 6 hours with 80% remaining.

Okay, it's caused by one of three things as I see it. And I bet your issue is the 3rd reason.
1) Bad battery, get a new one, but probably not the issue
2) Applications going out over the network a lot, especially if you are usually in the worst area, where you barely get reception, but get a slight amount... this one is tricky because I am yet to find an application to map out how much network an individual application uses over time. Some will monitor which ones are going on the network and some will monitor total network, but not break it down over time per application.
3) A background system application, or user one, is using more CPU than it should and sucking your battery. I had this issue, and at it's worst I was getting only 2 hours of battery life. I finally realized my phone was running hot for no reason. Because of this observation, I got the best application I've found on the marketplace for this, SystemPanel (The paid version). I hate buying applications, but this one saved me money from getting a new battery/phone. System panel will monitor your phone for a given period of time and break down the top apps by CPU useage over the last so many hours (you choose). What I found was that a system process (kswapd0) was sucking 24% CPU. This doesn't mean it accounted for 24% of the application total useage, it means it account for 24% of the CPU useage, which is different because if total application useage is only 1% then 24% of 1% isn't bad. But, 24% of the CPU is. So, I reflashed and all problems were fixed. Battery life could go 36 hours or longer with little useage and ksawpd0 was down to around 1.4%. Later I had bad battery symptoms again, but not as bad (like yours 6 hours and dead), and I checked SystemPanel and guess what, kswapd0 was accounting for 6%. I had to flash again. It's fixed again, not sure why kswapd0 does this, but
What I guess I'm trying to say is get SystemPanel and find out why your battery is dying. It also graph's the phone's drain. Look at the slope of that graph and see if it's extreme. Time when you are using it for internet should be really bad, but the idle time shouldn't be. I get around 36 hours idle time like I said, and if I were to just play robodefense or use the internet non stop I'd probably only get 2 hours of constant useage.

You might have wifi enabled all the time? If you have wifi on when your not connected to a wifi network it drains your battery like no tomorrow.
Sent from my SGH-I897 using XDA App

Seems like the system process idea might be my problem, because i know that wifi is not on, i usually disable it or juicedefender does it for me. I'll go through my normal day of light usage and then post a picture of my battery snap graph. If it isn't better by a run through again today then i will probably reflash like you suggested.

Calibrate.. Charge up to full.. Boot recovery delete bat stat.. Unplug ...discharge.. While off charge up to 100 ..then use
Sent from my GT-I9000 using XDA App

Poor signal is another culprit, especially when using non-captivate modems.... this will cause rapid battery drain. I had one location where my phone would only last 8 hours with no use, because of signal.

darkamikaze said:
Calibrate.. Charge up to full.. Boot recovery delete bat stat.. Unplug ...discharge.. While off charge up to 100 ..then use
Sent from my GT-I9000 using XDA App
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Already been done dozens of times.

hamburgertrain said:
Seems like the system process idea might be my problem, because i know that wifi is not on, i usually disable it or juicedefender does it for me. I'll go through my normal day of light usage and then post a picture of my battery snap graph. If it isn't better by a run through again today then i will probably reflash like you suggested.
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Let me know your results!

Try changing the ROM/Kernel combo. All kernels don't go good on all hardwares.

Yes I'm also eager to know what you find, as I am on the latest Phoenix with Firebird 0.8 and JL3 or 4 not sure which.. My battery life just plain sucks, will be getting that app now to monitor.. Anyway let us know what you find asap!

By chance have you tried a different battery. If memory serves me correct, some captivates were shipped wit a bad battery, and they were being replaced under warranty. Just another troubleshooting step.

odd
I'm also experiencing some bad drain on suckerpunch #40 with di1igaf's stripped 5.6 rom.
after flashing, restoring all my apps, syncing my google account, and setting an undervolt, I let my phone idle for 2 hours. over those 2 hours I lost only 1% of battery- I was so excited! this was the best battery performance I'd ever had.
then, I left the phone unplugged overnight and I lost over 20% in 8 hours. I have no idea what happened!
I have been using watchdog lite to monitor processes- the only thing that is using up any CPU is "android system" which is usually taking up about 10% of my total cpu- does that sound normal?
I thought this might be a problem with the flash so I re-flashed but the issue persists. I have been using the same app/widget setup for a few months now with several different ROM/kernel combos and have never experienced this kind of battery drain. Not really sure what to do at this point...
(edit- I have wifi set to sleep with the screen off so this shouldn't be the issue and I flashed from 100% battery and cleared the battery stats)

tehsam said:
I'm also experiencing some bad drain on suckerpunch #40 with di1igaf's stripped 5.6 rom.
after flashing, restoring all my apps, syncing my google account, and setting an undervolt, I let my phone idle for 2 hours. over those 2 hours I lost only 1% of battery- I was so excited! this was the best battery performance I'd ever had.
then, I left the phone unplugged overnight and I lost over 20% in 8 hours. I have no idea what happened!
I have been using watchdog lite to monitor processes- the only thing that is using up any CPU is "android system" which is usually taking up about 10% of my total cpu- does that sound normal?
I thought this might be a problem with the flash so I re-flashed but the issue persists. I have been using the same app/widget setup for a few months now with several different ROM/kernel combos and have never experienced this kind of battery drain. Not really sure what to do at this point...
(edit- I have wifi set to sleep with the screen off so this shouldn't be the issue and I flashed from 100% battery and cleared the battery stats)
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I had the same issue with that kernel. All kernels may not go well with all hardware. U cud try the kernel I have in my signature. A couple more folks tried the same, and are happy with battery. Idle drain (overnight, with wifi turned off) is about 4% per 7-8 hours of sleep time. ROMs too are known to drain, but in this case, I would strongly recommend trying out kernels.
After battery calibration, I would strongly recommend atleast 2-3 full charge cycles becoming coming to a conclusion that battery drain is high.

thanks for the advice. i will go through another 2 or 3 cycles, then I think I will try the speedmod kernel as I have had success with that in the past. if i'm still having issues I will definitely give that new xcal kernel a try.
the weird thing is the drain seems to be going up and down. right after I flashed, I was losing about 1% per 2 hours. then overnight it was over 3% per hour. this morning it was more like 1% per hour, but now it is speeding up again.

tehsam said:
thanks for the advice. i will go through another 2 or 3 cycles, then I think I will try the speedmod kernel as I have had success with that in the past. if i'm still having issues I will definitely give that new xcal kernel a try.
the weird thing is the drain seems to be going up and down. right after I flashed, I was losing about 1% per 2 hours. then overnight it was over 3% per hour. this morning it was more like 1% per hour, but now it is speeding up again.
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Speedmod didn't go well with my hardware. I have more drain using speedmod than I have on xcal.

diablo009 said:
Try changing the ROM/Kernel combo. All kernels don't go good on all hardwares.
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I've tried everything: JK3, ZNKP1, JK4, JL2, JL3.... znkp1 gave me the worst battery honestly, JK3, JK4 or JL2 were the best.

I think I'm going to accept my less than a days worth of battery and carry around a spare with me. Any way here's my usage yesterday. some light usage in the morning (pre 720 am) with idle the rest of the day until 210 pm
Ok i found out my battery stats are resetting at least every boot. Would this be detrimental to battery life?
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Sorry for it being sideways.
Sent from my SAMSUNG-SGH-I897 using XDA App

For good battery life, I recommend using Precsion Rom 1.01 with Speedmod' kernel. I am getting amazing battery life with it After 2d 5h 10m 25s, I am still at 27% battery life.

Info about my battery life

My battery seems to be REALLY bad. Worse than most peoples from what i gather from reading threads. I get about 8 hours from a full charge with minimal use. It seems that my screen is taking up most of the battery, according to my battery use page.... Any one else having major battery drain like I am??
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My display is taking a huge percentage as well. Everything else is low percentages. Don't know why. My screen is always either on auto brightness or completely dim.
Sent from my HTC Sensation 4G using XDA Premium App

Give it a while and a few recharges. It should get better. Same thing happened to me. It's slowly getting better. I have it about a week now.
Sent from my HTC Sensation Z710e using XDA Premium App

I was getting 7 to 8 hours at first, had my phone almost 2 weeks now and am now getting just under 20 hours with moderate use.
Give it time. My sensation has far better battery life compared with my DHD.
Sent from my HTC Sensation Z710e using XDA App

Peeps, you missed most important thing. Look at the AWAKE line. Either OP is playing a lot with th phone, or something is not letting it sleep.

Yeah, the battery really plummets when you actually use the phone (even on low brightness) but it idles quite efficiently at least...

Did u try juice defender? Just asking ify bout the sensation dnt knw either to get it or wait for sumthing else
mt4g royal ginger v2.1

Gregory.u317 said:
Did u try juice defender? Just asking ify bout the sensation dnt knw either to get it or wait for sumthing else
mt4g royal ginger v2.1
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Would help if you used proper language.
bcpk
Yeah, noticed same thing

I downloaded juice defender beta? whatever the free one was. To me that app does not have a good layout at all, either that or I was missing something. There dont seem to be any personalization settings at all. I dont trust apps to work when they just say "im doing something!!" ya know?
Now that I think about it on that charge I was playing music while I worked on my car for a while, that would explain the awake time. Even without doing that battery life is still really bad and the screen takes up 80%+. I will post another pic after my battery dies today. Dont plan on using it much so hopefully it will last longer.
That is good news about life getting better after a week or two though cause 8 hours with moderate use is unacceptable. My MT4G got a good 24 hours with pretty heavy use, I expect this thing to get at least half that.

i use juice defender and under normal use and a few hours of pandora streaming on wifi im at 35 hours at 40% battery

My phone was also drained like madness, within 6 hours it was empty, even if I didn't do anything with it. At the moment it is better, I did a factory reset through the startup of the phone (turn phone off, remove batt, place batt, hold volume down and push on/off button). There is an option to factory reset.
Strange thing was that when I turned off my phone before the factory reset, it was telling 34% batt. Right after the factory reset is was at 89% ???
I use Battery Status Bar app to display my batt in percentage...
But the good news is, my problem is now solved. Battery lasts for more than a day at normal use and 6-8 hours while very actively handeling it.
Looks like it was a reading wrong information or something...

Got 11 hours out of a battery today. So far its been charging for 4.5 hours and is at 94% charge. Takes about half as long to charge it as it does to kill it!
I will give juice defender a try. Seems like it works for a lot of people.

silentsnow31802 said:
Got 11 hours out of a battery today. So far its been charging for 4.5 hours and is at 94% charge. Takes about half as long to charge it as it does to kill it!
I will give juice defender a try. Seems like it works for a lot of people.
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I had same kind of long charging last night. Battery died at about 7:30pm. I plugged it and did not turn the power on. Went to play some ice hockey and after that I turned the power on again at about 10:10pm and it was still charging. At about 11:20pm(still charging) I unplugged for a couple of seconds to see the specs of the charger and then plugged back, surprisingly percentage jumped to 100. It was still on 100 this morning at about 8:00am.
Now I found out that phones own battery monitor tells me that time on battery is roughly 8 hours But when I check the time from Battery Indicator it tells me that time on battery is roughly 15 hours, which is correct.

Seems that a lot of people are getting false battery readings, me included. I did a factory reset last night and this seemed to fix this, at least until now it seems to report correct (realistic) values. I haven't charged the battery after the reset so we will see if charging messes it up again...
I hope this is a software problem, i really don't want to exchange my phone, i don't have any of the other problems.

what sort of battery times are acceptable for this phone? many are suggesting factory resets and all i wonder if i should do it or not. if i charge the phone overnight it goes to power saver mode usually say 8-9pm and then the power saver mode (basically dim screen and no gps wifi remains on) is managing to hold the power till i go to bed and charge it. is this ok?
juice defender seems to be recommended eh? maybe one should should try that before the factory reset. btw if factory reset done whats the best way to restore your phones contacts to how they are now? i mean it took forever to link all the facebook, phone and microsoft exchange contacts and offcourse gmails. dont want to go through that again.

I tried juice defender last night and it didnt seem to help. I lost 45% overnight without me even using the phone! When I fell asleep the battery meter said 100% still and I woke up to 55%. The phone says there is some awake time, wonder what it could be? As much as I dont want to do it I think a factory restore may be an option since nothing else is really helping. Should I wait until the battery is 100% before I reset it?
Some new pics, keep in mind I was asleep for all of this use except for what the screen awake time says.
cyrarchy said:
what sort of battery times are acceptable for this phone? many are suggesting factory resets and all i wonder if i should do it or not. if i charge the phone overnight it goes to power saver mode usually say 8-9pm and then the power saver mode (basically dim screen and no gps wifi remains on) is managing to hold the power till i go to bed and charge it. is this ok?
juice defender seems to be recommended eh? maybe one should should try that before the factory reset. btw if factory reset done whats the best way to restore your phones contacts to how they are now? i mean it took forever to link all the facebook, phone and microsoft exchange contacts and offcourse gmails. dont want to go through that again.
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I would say you battery life isnt that bad, if it lasts a day then it sounds about right. People are saying the batteries last longer after a couple weeks or so. If you do factory reset try and connect to wifi when google is restoring your contacts and such, it makes things go a lot faster.

I managed just over 9 hours on my first charged but I'm recharging it now and it went straight up to 31% when it booted up again :S

Me and my gf both have a Sensation now(i upgraded from HTC Desire, and she a HTC Legend), we are both pleased with the battery on the phones, she uses stock Sense, and i use LauncherPro, though we did learn something from our older phones, the thing that drains battery extremely much is all the notification emails Facebook automatically send(gmail push), these are almost turned off to 100%, next thing is to turn off all syncronisation in the phone you don't use, ex. i use Launcherpro therefore i don't need the phone to update Sense's own weather, and so on.
We both normally charge the phone every night, but i guess my phone would last almost 2 days on days i don't use it that much.
I must say i am extremely satisfied with my phone, the thing that i dislike the most is the camera, or to say it in a different way, if i didn't know the SG2 had a slightly better camera i may have been more satisfied

silentsnow31802 said:
The phone says there is some awake time, wonder what it could be?
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You should not have anywhere near 100% awake time unless you're using the phone at all times. You have some app that is not shutting down or auto-updating far too often. That's your culprit - find it and your battery life will improve.

bcpk said:
Yeah, the battery really plummets when you actually use the phone (even on low brightness) but it idles quite efficiently at least...
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What app is this???

Battery now dying...

So I'm like wtf all of a sudden my battery is like at 40% by noon, and I recharge and it gets to the same within a couple of hours }
I don't get it not even a year yet
BTW I'm stock froyo/ rooted
Bad battery ? Any one else experience this? I have juice defender set CPU
Battery stats say main cause is "cell standby" any tricks to fix this?
No I'm not going to gb
meh...

Well, in the end, that's the best that froyo can do for the G2X...
I had Froyo and i pulled off 6hrs, when i got GB i was able to pull off 8, so yea, juice defender really wouldn't give you that much more battery life, the best shot is to upgrade the ROM.

i would consider updating it :/ i've never had froyo but since i've been using gb i get 15+ hours out of my phone and that's with heavy texting, internet browsing, some netflix watching and a little gaming. but cell standby seems to be my biggest problem too i wish i could fix that

iasookia said:
Well, in the end, that's the best that froyo can do for the G2X...
I had Froyo and i pulled off 6hrs, when i got GB i was able to pull off 8, so yea, juice defender really wouldn't give you that much more battery life, the best shot is to upgrade the ROM.
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Running froyo I was getting at least 14-16 hours.
Usually bad battery life can be accredited to less-than-optimal user settings, heavy device usage, or there's a rogue app that's sucking your battery down.
Sent from my LG-P999 using XDA App

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and as you can see i still have about half a battery left. the only precaution i really take is that my brightness is almost down to zero. and on my old phone it used to show in the battery settings if i used a certain application such as internet or ebuddy. i have no idea why it won't show those on this device so you can't see my heavy internet usage, gaming and some netflix watching.

and just for reference i'm running complete stock no root or anything. i'm now on one day and two hours worth of battery with 30% still left
Sent from my LG-P999 using XDA App

tokimaromi said:
and as you can see i still have about half a battery left. the only precaution i really take is that my brightness is almost down to zero. and on my old phone it used to show in the battery settings if i used a certain application such as internet or ebuddy. i have no idea why it won't show those on this device so you can't see my heavy internet usage, gaming and some netflix watching.
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I wish I got that kind of battery usage out of mine. Cell standby is just sucking everything it can out of my battery...

barqers said:
I wish I got that kind of battery usage out of mine. Cell standby is just sucking everything it can out of my battery...
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i hope someone can help you with that! cell standby is one of my worst battery suckers but obviously it's not doing too bad. it's still alive right now at 18% i'm trying to see how much i can milk it for

tokimaromi said:
i hope someone can help you with that! cell standby is one of my worst battery suckers but obviously it's not doing too bad. it's still alive right now at 18% i'm trying to see how much i can milk it for
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Lol I'd be lucky if I got 12 hours out of my phone with my display OFF -.-
I'm probably going to switch back to Froyo.

barqers said:
Lol I'd be lucky if I got 12 hours out of my phone with my display OFF -.-
I'm probably going to switch back to Froyo.
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you got better battery life using froyo? that's the exact opposite of what i've been hearing

tokimaromi said:
you got better battery life using froyo? that's the exact opposite of what i've been hearing
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I had froyo on my phone for about 3 hours and I lost 10%. I have any version of GB on my phone and I lost 10%/hour. So it's a huge jump ATM.
---------- Post added at 02:31 AM ---------- Previous post was at 01:39 AM ----------
Hey OP, can you post a list of your apps? Use listables. I want to compare it against mine. If there are any similar apps then I'm going to disable/uninstall mine and check battery life and report back.

Have you tried booting into recovery and erasing battery data? That greatly improved battery life on my Nexus S after it had undergone multiple ROM flashes.
Sent from my Nexus S using xda premium

The ROM you're using is a huge matter. With CM7, i couldn't go a day without charging. Now, with MIUI, I'm pretty sure I can get 3 days, with normal brightness, and my normal use, which is email and texting.

aplsux said:
The ROM you're using is a huge matter. With CM7, i couldn't go a day without charging. Now, with MIUI, I'm pretty sure I can get 3 days, with normal brightness, and my normal use, which is email and texting.
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Holy **** I finally found someone with WIND Lol! Okay, what are your settings though? Do you have it set to WCDMA Only?
Is 3G turned on? Cause I can barely get like 14 hours moderate usage with dim brightness :S
I noticed that with cell radio on I used 10% in 57 minutes and with it off I used 1% in 1.5 hours...
bjlefebvre said:
Have you tried booting into recovery and erasing battery data? That greatly improved battery life on my Nexus S after it had undergone multiple ROM flashes.
Sent from my Nexus S using xda premium
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I'll try tonight! Just letting it fully charge, then wiping/calibrating!

I found that if I turn data off sync off the battery lasts over twice as long. I don't need it consistently on, so I turn it on when I'm not busy. Works for me

aceofserenity said:
I found that if I turn data off sync off the battery lasts over twice as long. I don't need it consistently on, so I turn it on when I'm not busy. Works for me
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You know what I find weird. It doesn't matter if I turn data off or not cell standby will still use the same amount of battery and my battery still drains at the same rate.
Sent from my LG-P999

Just realized both threads were started by u..

3 Words. Juice Defender Plus.

[Q] Battery Life, Return Or Not?

First off, I am loving the phone. It is such a massive leap from the N1 I had been using. While I expected lower battery life, I did not expect to run through 70% of the battery in 4 hours with moderate usage.
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I have heard of people getting far better battery life, and have tried the various methods, from charging to 100% then turning the phone off and charging again to 100%, using juice defender ultimate, and even resorting to factory resetting the phone. Still I can't get any kind of good life out of the battery. My question is should I try and get a full replacement for the phone or just the battery? I've only had it sinceblast Thursday, so I know AT&T will happily exchange it, but if yall think it's just the battery, I'd rather just replace that then the whole phone.
Sent from my SAMSUNG-SGH-I727 using XDA App

papertreeprophet said:
First off, I am loving the phone. It is such a massive leap from the N1 I had been using. While I expected lower battery life, I did not expect to run through 70% of the battery in 4 hours with moderate usage.
I have heard of people getting far better battery life, and have tried the various methods, from charging to 100% then turning the phone off and charging again to 100%, using juice defender ultimate, and even resorting to factory resetting the phone. Still I can't get any kind of good life out of the battery. My question is should I try and get a full replacement for the phone or just the battery? I've only had it sinceblast Thursday, so I know AT&T will happily exchange it, but if yall think it's just the battery, I'd rather just replace that then the whole phone.
Sent from my SAMSUNG-SGH-I727 using XDA App
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Have you found out what is using your battery?.. Even before I rooted and all the other stuff was getting at least 10hr.. now Im getting 24-28hours...
Are you running another ROM other than stock?

Didn't want to root if I needed to return anything, so I am running stock currently. Looking no app seems to be running away and draining all the battery. Everything looks the same as it did on my N1 in terms of what's draining the battery, which is what lead me to believe it's a bad battery possibly.
Sent from my SAMSUNG-SGH-I727 using XDA App

papertreeprophet said:
Didn't want to root if I needed to return anything, so I am running stock currently. Looking no app seems to be running away and draining all the battery. Everything looks the same as it did on my N1 in terms of what's draining the battery, which is what lead me to believe it's a bad battery possibly.
Sent from my SAMSUNG-SGH-I727 using XDA App
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Yeah.. it very well could be.. mass produced items= bound to have some duds here and there..
Return it for another.. This is a great phone!!!

definitely return it.

Well if you do root than TPC's Rom is the best. It comes with kernel and the battery life is outstanding.
papertreeprophet said:
First off, I am loving the phone. It is such a massive leap from the N1 I had been using. While I expected lower battery life, I did not expect to run through 70% of the battery in 4 hours with moderate usage.
I have heard of people getting far better battery life, and have tried the various methods, from charging to 100% then turning the phone off and charging again to 100%, using juice defender ultimate, and even resorting to factory resetting the phone. Still I can't get any kind of good life out of the battery. My question is should I try and get a full replacement for the phone or just the battery? I've only had it sinceblast Thursday, so I know AT&T will happily exchange it, but if yall think it's just the battery, I'd rather just replace that then the whole phone.
Sent from my SAMSUNG-SGH-I727 using XDA App
Click to expand...
Click to collapse

I was concerned with battery life at first as well. When I first got this thing I had to plug up 9 hours after I unplugged. So now I am near 30 days with it and the battery seems to have leveled out enough for me to be happy. I got 16 hours on it STOCK no ROOT the other day without plugging in, was at 10% when I finally plugged in. Yesterday I activated Juice Defender again after getting some questions answered. I got 17 hours without a plug in and was still at 25%, so i probably could have gotten 20+ hours if I needed it.
So I am happy now 17+ hours is plenty long enough for me, I always plug in at bedtime anyway.

I'm wondering how many people who are reporting battery issues, if they have calibrated them. Charge your battery all the way, use the phone until the battery dies, then fully charge. This will give a more accurate reading as far percentage used.

mimart7 said:
I'm wondering how many people who are reporting battery issues, if they have calibrated them. Charge your battery all the way, use the phone until the battery dies, then fully charge. This will give a more accurate reading as far percentage used.
Click to expand...
Click to collapse
first thing I did and I actually never have reported battery issues......I was giving it time to season and it has leveled off nicely.

appdroid said:
Well if you do root than TPC's Rom is the best. It comes with kernel and the battery life is outstanding.
Click to expand...
Click to collapse
There is a new ROM Piret RC1, the battery life is amazing, it has a different Kernel as the one with TPC has it';s problems.
RC1 is clean fast and in 2 hours I used up 4%. Then turned every possible service on used it up like crazy to drain the battery, installing/backing up/ flashing new rom and it took 2 hours with heavy usage to drain from 17%. Just to compare last night I had a TPC ROM and was on WhatsApp for about an Hour and battery went from 85 to 34 %.
Re: Returning the phone.
First once you root you can the same way unroot, make sure first you install a stock ROM.
My friends have the same problem, one with this phone, and others with android phones in general, don;t waist your time returnig. To be safe you also have a year to send it to Samsung to get fixed if there is something wrong with it.
Basically, running apps will kill battery, location services kills it the most, sync not so much, heavy use of data does to (I have LTE plan). Use power saver to start at 70%, configure it right, use the CPU app to manage the speed ondemand.
Most important don't frick out, the andoid phones are like that, the major difference is that Iphone does maybe 20% of what android phone does in standby and many things are not available on Iphone, so the battery is better. You will not get more then a day of use on android if you use it to your benefit. 28H is mostly standby, no sync, no internet usage, just moderate. I used to use Iphone heavy and battery would not last a day.
Get a good data plan, don;t use WI-Fi unless u have too, when syncing with the car plug it in the charger, spend extra $10 get a Samsung cable from them, don;t go for cheap 10 dollar once or even 1 dollar once from China, they are very slow to charge. My cable from the box take 1.5 H to charge to 100.
Hope it helps, please don;t quote me on anything, this is purely based on research and one week usage and trying different things, it's strictly my opinion, don;t expect your phone to last like they use too, it's 21st century and techno in it is overwhelming and needs power. Keep the phone have two cables and enjoy!

This is my first smart phone, after 20 plus years of having cel phones. I try to read before posting any questions.

mimart7 said:
This is my first smart phone, after 20 plus years of having cel phones. I try to read before posting any questions.
Click to expand...
Click to collapse
good habit to get into thanks for that....the search button is your friend.

I have been reading on the battery issues, long before I posted. I have done everything from calibrating, to using juice defender ultimate, to doing a ritualistic dance to try and coax more battery life out of this phone. Still with nothing but 2 phone calls and one quick spelling look up, dead within 8 1/2 hours.
I just got my extra battery and charger from samsung in today, already fully charged up this battery and will see what it can do for a few days. I'm hoping my problems are just a random bad battery. I also factory restored and am running bare minimum on apps just to try and remove all variables. If there still is a problem I will exhange it for another one next week. I just hope they still have some white ones in stock
Sent from my SAMSUNG-SGH-I727 using XDA App

papertreeprophet said:
I have been reading on the battery issues, long before I posted. I have done everything from calibrating, to using juice defender ultimate, to doing a ritualistic dance to try and coax more battery life out of this phone. Still with nothing but 2 phone calls and one quick spelling look up, dead within 8 1/2 hours.
I just got my extra battery and charger from samsung in today, already fully charged up this battery and will see what it can do for a few days. I'm hoping my problems are just a random bad battery. I also factory restored and am running bare minimum on apps just to try and remove all variables. If there still is a problem I will exhange it for another one next week. I just hope they still have some white ones in stock
Sent from my SAMSUNG-SGH-I727 using XDA App
Click to expand...
Click to collapse
My battery went completely dead too. I returned mine. Black model though. New one is doing okay so far. Better since it doesn't report 100% battery until a reboot...

Finally went and exchanged it last night. So far I have gotten 9 hours of battery life and am only down to 70%. Better than before, but the vertical lines on the screen are worse on this one than the last.
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I have almost the opposite "problem." Not that I'd call it a problem just yet. I had my phone running from about 10am till 1am yesterday. I went to bed and plugged the charger in and it instantly said "battery charged 100%. Remove charger." 15 hours with no drain at all? Granted, I didn't do much with it yesterday but send about 20 text messages.

Going on 32 hours+ battery life and no vertical lines.. bought it when it came out Nov6....
---------- Post added at 12:38 PM ---------- Previous post was at 12:36 PM ----------
papertreeprophet said:
Finally went and exchanged it last night. So far I have gotten 9 hours of battery life and am only down to 70%. Better than before, but the vertical lines on the screen are worse on this one than the last.
Sent from my SAMSUNG-SGH-I727 using XDA App
Click to expand...
Click to collapse
30% in 9 hr's? you need to see what is killing your battery... unless you play games or on the net all day.. that is not good at all..
I lose about 1% an hour..

I don't know what you smoking man but i tried his rom and never had issues. Let me tell you I Have ORD so my suggestion will be based on my usage rather than prediction. I have tried most of the themed/tweaked roms. Don't like stock rom.
odeccacccp said:
There is a new ROM Piret RC1, the battery life is amazing, it has a different Kernel as the one with TPC has it';s problems.
Click to expand...
Click to collapse

Considering I used to be lucky to get 10% drain an hour on standby before, the 3% our so i'm losing an hour now is awesome. And in those 9 hours I checked google reader and played some levels of Trial Extreme 2.
Sent from my SAMSUNG-SGH-I727 using XDA App

Here is my battery currently.
70% in a little over 20 hours was unheard of on my last one.
Sent from my SAMSUNG-SGH-I727 using XDA App

Seido 3800 maH battery purchased! - best practices?

http://www.amazon.com/Seidio-BACY38...yrocket/dp/tech-data/B006SQ12E8/ref=de_a_smtd
Just purchased the battery above! My very first Seido. Hope everything goes well but based on the reviews it should do exactly what I want and need it to do! Can anyone give me any input on best practices once I get my battery in? I did rush delivery and it should be here tomorrow.
1) I've read a couple people saying it reads 100% all day and some people say it reads perfectly find (battery is at 50% and the indicator on the phone actually says 50% too). How do I get it to read the battery correctly?
2) Also, should I charge it once I receive it first or should I put it in the phone and drain it all the way first then start charging?
3) Does the battery have that auto off charging thing that turns off charging when it reaches full? Or do you have to baby sit it and your phone when it's charging and unplug it from the charger manually to stop the charging from ruining the battery?
4) Is the battery actually fully charged once your phone says 100% or do you have to charge a couple hours after that still?

I have one.
- youll want to properly calibrate your battery. Mine came with about 40% to start with. Just use it normally to drain it first then fully charge up to 100%. When you reach it youll want to charge it an extra 2 hours or so. Also dont forget to wipe battery stats and pull it out for 30 seconds before use.
- it took me about 6-7 charges to get it going at its full potential.
- try to avoid charging in the middle of battery use to 0%.
Sent from my SGH-T989 using XDA

anomy13 said:
I have one.
- youll want to properly calibrate your battery. Mine came with about 40% to start with. Just use it normally to drain it first then fully charge up to 100%. When you reach it youll want to charge it an extra 2 hours or so. Also dont forget to wipe battery stats and pull it out for 30 seconds before use.
- it took me about 6-7 charges to get it going at its full potential.
- try to avoid charging in the middle of battery use to 0%.
Sent from my SGH-T989 using XDA
Click to expand...
Click to collapse
Thanks man.
Ok I received it and I was able to drain it from what it read as "40%" and brought it down to 0% dead with a bunch of indoor GPS, pandora playing, all radios on, and max brightness and screen on in about 3 hours.
I'm letting it charge now to 100%, going to let it charge an additional 2 hours after that and then "wipe battery stats."
[Q] Does this mean go into recovery and do the wipe battery stats option in there after it hits 100% + 2 hours?
[Q] What does it mean pull it out for 30s before use? Does this mean wipe battery stats -> then take the battery out of the phone for 30s -> put the battery back in -> turn it on? Is that the right order?
If someone could answer soon that'd be awesome. It's charging right now and I want to make sure to get this down right the first time

Id say your good with the drain and recharge plus the extra 2 hr.some may say battery stats are a myth.I look at devs roms and none if there instructions include reset battery stats if I helped hit thanks...good luck with your battery I hope it helps
Sent from my SAMSUNG-SGH-I727 using xda premium

Charge it to 100% + extra 2 hours then go to recovery and wipe battery stats. After that turn ur phone off pull out the battery out for 30 sec. Then put it back in and proceed with normal use. Then as I said before try to avoid charging in the middle to its way to 0%. And repeat.
The myth about battery stats was regarding a different matter. When i did not calibrate my battery for a long time I noticed that it decreased total life by 10%. So it is imperative that u do it at least time to time.
Sent from my SGH-T989 using XDA

anomy13 said:
Charge it to 100% + extra 2 hours then go to recovery and wipe battery stats. After that turn ur phone off pull out the battery out for 30 sec. Then put it back in and proceed with normal use. Then as I said before try to avoid charging in the middle to its way to 0%. And repeat.
The myth about battery stats was regarding a different matter. When i did not calibrate my battery for a long time I noticed that it decreased total life by 10%. So it is imperative that u do it at least time to time.
Sent from my SGH-T989 using XDA
Click to expand...
Click to collapse
Been doing it and im VERY happy with this battery. I actually do not mind at all the "bulk" that the battery + cover brings to the phone, I prefer it! It makes the phone less slippery and a much better feel in my hand!
I ordered the case + clip holder from Seido as well and can't wait to get those in.
First test: (I never charged it the entire day)
3 hours of GPS
heavy browsing
music playing every once in a while
pandora
max brightness
no juicedefender, but i did use SetCPU to underclock the CPU when the battery got too hot (which never happened)
Lasted from 7am to 6pm. That is an INSANE amount of time considering all the unnecessary stuff I was doing with it! This battery is amazing!
I'm going through a "regular" day of usage today instead of trying purposefully to drain it. It's been off the charger since 7am and its sitting at 72%. Satisfied! :highfive:

syypher said:
Been doing it and im VERY happy with this battery. I actually do not mind at all the "bulk" that the battery + cover brings to the phone, I prefer it! It makes the phone less slippery and a much better feel in my hand!
I ordered the case + clip holder from Seido as well and can't wait to get those in.
First test: (I never charged it the entire day)
3 hours of GPS
heavy browsing
music playing every once in a while
pandora
max brightness
no juicedefender, but i did use SetCPU to underclock the CPU when the battery got too hot (which never happened)
Lasted from 7am to 6pm. That is an INSANE amount of time considering all the unnecessary stuff I was doing with it! This battery is amazing!
I'm going through a "regular" day of usage today instead of trying purposefully to drain it. It's been off the charger since 7am and its sitting at 72%. Satisfied! :highfive:
Click to expand...
Click to collapse
Blown away right now, with how well 5.1 is running with the 07162012 Nightly CM9. Never had this much success with battery before!
Can't post screenie yet, but will add once I am allowed to.

Weazmeister said:
Blown away right now, with how well 5.1 is running with the 07162012 Nightly CM9. Never had this much success with battery before!
Can't post screenie yet, but will add once I am allowed to.
Click to expand...
Click to collapse
I just flashed CM9 Nightly 07162012 yesterday and the battery life has been amazing.
I work at AT&T Corporate Store so I use it at work.
-A few calls
-Texting
-Pandora
-Metal Slug 3
-Facebook
-Instagram
So basically my daily usage and within those 23 hours it also includes me downloading all my apps and syncing my information on to it.
*Oh, I also have the same battery. That's why I posted this on here.*
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Here's my results
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Thanks for the feedbacks guys, this looks very promising.