Database Info

Show off your battery life!

http://img100.imageshack.us/img100/3922/snap20101010220328.png
This is my moderate use. Few web here and there facebook, some calls/texts and instant messaging for a good 3hrs
I am running cog 2.2b5
Just wanted to compare battery life and post the rom you are running too
Sent from my SAMSUNG-SGH-I897 using XDA App

my battery life sucks. i get about 10% per hour....

What Rom are you using?

yeah my batt isn't too great either. 2 days on Cog V5 now. Each day has been roughly 10hrs with about 4.2hrs use. Each day I ended with maybe 1-2% left.
Is this normal? Froyo didn't help a bit. In fact it may have made it slightly worse.

When I flashed b5 ... it was great. Then I found my gps sucks on it so I flashed again and I found that the battery drains like water 1% every 5 mins! ( Idk what's going there) Then, I flashed again and the above post is my result and my gps still sucks. So maybe if you flash it again it might help. I re partitioned in odin as well.

I am using Froyo (JI6) with lagfix and I get a consistatnt 12+ hours of moderate use. I usually charge my phone every three days.

Cog 2.1.7
I have to charge my phone every night. I have used multiple roms from cog 2.1 and even cog 2.2 as well as stock and it all seems the same.

There is no way that is an accurate picture... there is no way you made phone calls or used the facebook app without it showing up in usage.... u may have gotten 40% out of 12hrs but you did nothing with your phone
Sent from my SAMSUNG-SGH-I897 using XDA App

all my calls are usually short and yes i used facebook app and facebook browser as well.

Smallsmx3 said:
There is no way that is an accurate picture... there is no way you made phone calls or used the facebook app without it showing up in usage....
Click to expand...
Click to collapse
I use tons of apps on my phone and the only things the show up in my battery usage are: Display, cell standby, phone idle and voice calls.

you need to recalibrate your batteries or flash from 100% as DesignGears had mentioned earlier.
i now flash from 100% batt life when upgrading to new ROMs. or do a search for battery calibration.

Not sure how to do a screen shot but Im running 2.2 beta 5 and I thought battery life sucked but it was because I was checking it constantly and playing with GPS.
Today, after recalibrating battery stats two nights ago I have dropped 3% in 3 hrs of standby and very, very light use.
Also, to recalibrate battery stats I downloaded terminal emulator and did the following
su
rm /data/system/batterystats.bin
I had drained it fully down to 1-2%, did the above commands, plugged it in and charged to 100%. You must be rooted to do it this way I would think since Im using su for superuser.

Yea, I recalibrate the battery on my 2nd flash. the first flash my battery was draining literally 1% per minute. So I reflashed (I thought something went wrong on my 1st flash) and recalibrated now it's normal again.
gocats7: Yup cog comes rooted

Cognition is awesome. With all the features built in, the att crapware stripped out I dont see myself ever running a stock ROM again. In regards to battery though, I think its at least as good as stock if not better. I havent had 2.2 beta 5 loaded long enough to really tell.

I've never had poor battery life. I did have that "new phone syndrome" when I got it and had to charge it a lot. But now I'm going around a day and a half on a charge with moderate use. I use wifi everywhere I can and try to minimize the time the screen stays on.

miztaken1312 said:
I've never had poor battery life. I did have that "new phone syndrome" when I got it and had to charge it a lot. But now I'm going around a day and a half on a charge with moderate use. I use wifi everywhere I can and try to minimize the time the screen stays on.
Click to expand...
Click to collapse
Have you found that wifi has been helping your battery life? When I have mine on I lose battery at ~5-10% an hour. With it off I lose 1-2% an hour. I have to switch it off nightly so that I don't have to charge my phone again in the morning.

Just the thread I was looking for...
I just recently bought a captivate that had the battery problems it seems so many are having with random shutdowns etc. I would get maybe 12 hours before getting the recharge notice. And that is with very little use. So, along with the advice from these forums, I had it replaced within my 30 days and immediately noticed a difference in the way the phone felt(if that even makes sense). It seemed like the screws were tighter, it was cleaner and it way out performed my previous captivate. Had me thinking I was given a display model or something.
So, to keep it short....I just plugged in after (for me) a very impressive 64 hour strech with moderate useage, some gaming and movie watching. Could not be happier with this phone right now. I cannot for the life of me figure out how such an impressive spec'd phone can use so very little power while locked. It makes me feel like a proud parent...lol.
I <3 My Captivate...

nybmx said:
Have you found that wifi has been helping your battery life? When I have mine on I lose battery at ~5-10% an hour. With it off I lose 1-2% an hour. I have to switch it off nightly so that I don't have to charge my phone again in the morning.
Click to expand...
Click to collapse
I have actually found my battery lasts longer with wifi on. I only turn it off when I leave the house. For me the wifi seems to be a lot more power/data efficient then my data connection. I can use the phone all day on wifi and still have 20% left at the end of the day whereas when I've been out all day long using data I can barely make it home without it *****ing at me to charge the phone.
Sent from my Captivate

I have had the best battery life yet with Cog 2.2 Beta 5.5 and migrating my Exchange server to Google Apps Premium so I do not need to use stock corporate email app anymore. I am pretty happy with this so far although I have only used the new beta for a day so far.
As a bonus, I am even using Live Wallpaper.

27hr, just dropped below 30%. Love it

Battery stats for those on custom ROMs

Im trying to convince myself to get the Inspire and sell my atrix.
The last thing that is making me reluctant is the battery. I consitantly get between 30 and 40 hours between charges on my atrix with 3 to 4 hours of screen time. I know i wont get that with an Inspire, but im wondering what kind of stats people are seeing who are running custom ROMs. With my capitvate i saw a nearly DOUBLE battery life effect between stock and a custom rom. im hoping there are similar results on the inspire.
for those on custom roms, im looking to see how many hours you get between charges. ideally, how many hours between charges, with how many hours of screen time, wifi, blue tooth, etc. and im also interested in seeing the battery life of those who are OC/UV.

Someones gotta have info for me!
Sent from my MB860 using XDA Premium App

Inspire battery usage....sucks!
If your main concern is BATTERY USAGE, then DO NOT get an Inspire.
No matter what ROM or other MODS made to an Ispire, it is accepted by all that have one, that the Inspire has very low battery uptime, especially when compared to other platforms.
Stay with your ATRIX for long battery usage and uptime. - Glenn

I just swapped my Atrix for the Inspire this past Sunday, and i can tell you first hand you're not gonna get the same battery results you did with the Atrix. Personally, I don't need to get 20-40 hours of battery life from a phone. Don't get me wrong, it is nice, but I don't need it. I just want to get at least 8 hours (while I'm at work) from a battery and I'm fine. However, I do have my charger with me just in case and i also have a car charger.
I rooted my Inspire Sunday night and flashed the stock rooted rom and couldn't be happier. I got about 13 hours out of the battery yesterday while I was at work and I used it under normal circumstances..calling, texts and lots of fb checking etc. Oh, and I didn't have any overclocking, underclocking, themes or nothing...just the rooted the stock rom.
The inspire is a lot more smooth also when compared to the Atrix. I was all for the Atrix last week. But after actually having the Inspire....its the Inspire FTW!

Its not my main concern. Just the Las thing I'm considering. A lot if other things about the inspire are appealing. Just looking for round about numbers.
Can I get 12 hours out of itwith 2 to 3 hours of screen time? That might be enough for me........If can get more than that, then I would def be sold.
Of course all this would be expected only when all aetttings on phone for Max bat life applied
Sent from my MB860 using XDA Premium App

muthabusser said:
If your main concern is BATTERY USAGE, then DO NOT get an Inspire.
No matter what ROM or other MODS made to an Ispire, it is accepted by all that have one, that the Inspire has very low battery uptime, especially when compared to other platforms.
Stay with your ATRIX for long battery usage and uptime. - Glenn
Click to expand...
Click to collapse
Speak for yourself. My Inspire lasts me the day with a ton of juice left over. I'm not a super heavy user, but I will have sometimes 60-70% battery life when I go to bed on light use days. On heavier use days I'm still at 30-40% when I go to bed. Unless you are watching youtube videos or something for hours on end, battery life is fine I think.

To extend battery life I adjusted my screen brightness back to 30% with no auto adjust, seemed to help battery life quite a bit and did not make much difference in how the screen looked. Today I am trying auto brightness, but using power saver to switch to lower screen brightness when the battery hits 40%--I'm at 7 hours and the battery is still at 70%. Honestly, I don't think a person could even watch a movie on a flight, for example, the screen draw on the battery is that bad. If I keep the phone, I will have to get another battery.

I get 22-24 hours with light average use, about 14 hours of moderate use. CM7, nothing special done or flashed.
HTC Inspire Clockwork Recovery * CM7(kang) * Eng S-Off

synnyster said:
Speak for yourself. My Inspire lasts me the day with a ton of juice left over. I'm not a super heavy user, but I will have sometimes 60-70% battery life when I go to bed on light use days. On heavier use days I'm still at 30-40% when I go to bed. Unless you are watching youtube videos or something for hours on end, battery life is fine I think.
Click to expand...
Click to collapse
I was replying to the OP's original statment regarding his Atrix battery time in reference to the Insire's battery time:
OP said......The last thing that is making me reluctant is the battery. I consitantly get between 30 and 40 hours between charges on my atrix with 3 to 4 hours of screen time.
Even with your light usage, I am doubtful that you get anywhere close to the OP's "30 and 40 hours between charges on my atrix with 3 to 4 hours of screen time". - Glenn

well i guess i will just find out.
impulse buyer here. immediatly ran out and purchased an inspire after making this thread.

You're going to LOVE the inspire (even with the lower battery time). I have no doubt you will be throwing rocks at ATRIX users in no time!! - Glenn

Lol ur right so far. Smooth, fast, solid. Just the smoothness and screen size is enough to win me over
Sent from my Desire HD using XDA Premium App

My results are based on percentage of time versus overall time, based on an average 8h work day.
Stock rom:
at the end of 8h I had an average of 55% left
Revolution HD 4 Beta 2:
at the end of 8h I had an average of 35% left
Stock rom rooted and bloat removed, HSPDA enabled:
only have one data point and it looks good so far. I had 75% left with the same average use as the other roms above. Why this one is so much better I don't know.
Also the stock rom came with the stock Radio 06.04.06_M but with the root downgrade and then custom rom to Rev HD4 B2 I had to upgrade the Radio to one that was suggested, which is 06.03.24_M2.
Also, one thing that I noted which was also seen on my Nexus One is that when I use the GPS my car charger is not able to keep up and I will loose battery % as I drive.
All in all I am very happy with this move from the Captivate. Many see it as a lateral move, but if you ever where in the need for the GPS this is definatey an upgrade since the GPS on the Inspire is spot on.

^^^^^^
thats the kind of info i was looking for. appreciate it.
my first run with the inspire resulted in 14 hours since last charge (down to 15%) with nearly 3 hours of screen on time.
granted i adjusted every possible thing to be less battery consuming, and one hour of that screen time was laying in bed in the dark with the screen on the lowest brightness setting.
i think i may be able to work with this.

oFUNGUSo said:
well i guess i will just find out.
impulse buyer here. immediatly ran out and purchased an inspire after making this thread.
Click to expand...
Click to collapse
yeah i am close to an impulse buy on the inspire too, just because its such a great price. even full price at 399 is insanely cheap when most phones are 550 full price.

RogerPodacter said:
yeah i am close to an impulse buy on the inspire too, just because its such a great price. even full price at 399 is insanely cheap when most phones are 550 full price.
Click to expand...
Click to collapse
the battery does suck. but everything else on the phone is so great, that i still am happy i got it

I am a pretty hardcore user and I never have any issues with battery at all. I believe a lot of these battery issues that people have are due to flashing with a low battery, which causes the battery's "memory" to get messed up. If people flashed with a full battery, or did the battery reset procedure after flashing and charging, we would stop hearing about all the horrible battery issues. User error, not an issue with the phone. If it was a phone issue, I would absolutely be experiencing the problem as well.
There are also bigger, better, higher capacity batteries up to 3500 ma/h if you REALLY need more battery time.
Sent from my Desire HD using XDA App

alright so i had a lot of issues with getting great battery life out of the phone. i'm only writing this to help people that are having similar issues. obvious, relative to teh atrix (with a ridiculously larger battery), the life is NOT that great. BUT i've gotten 24+ hours on teh phone with certain tweaks.
first off, rooting is a pain in the ass, but a necessity for any power user. My HSUPA speeds are often higher then the HSDPA speeds...and I can tether too! Anyways most important part of tihs is underclocking. I have my screen set to underclock to 3xx Mhz with screen off. I can't even tell the difference between when it is underclocked or not. I don't OC since for whatever reason I don't see the option to and don't care to force it.
I also set my brightness to 20% or less when i'm indoors, which is usually where i am. I also turn off the radios when i'm not using them, or wifi when i'm in range (i think its better than hspa), and sometimes autosync too (there are widgets for this). i also disabled facebook live feed syncing and set it to update when i open the app, and to sync contacts and htc sync and other useless stuff to once a day.
if you want something to turn off your radios when your screen is off, check otu juice defender. if you want to track your battery over time, try juice plotter. with the way i ahve it setup now, if i leave the screen off for 10 minutes. the battery drops 1% or less PER HOUR. One night, it finished charging at midnight so i took it off, and didn't put it back on a charger 1 am the next night with 10-15% left.
anyways, i hope this helps at least some new inspire owners. good luck with rooting if you haven't yet, it took me 4 hours, but itw as COMPLETELY worth it

anosis said:
My results are based on percentage of time versus overall time, based on an average 8h work day.
Stock rom:
at the end of 8h I had an average of 55% left
Revolution HD 4 Beta 2:
at the end of 8h I had an average of 35% left
Stock rom rooted and bloat removed, HSPDA enabled:
only have one data point and it looks good so far. I had 75% left with the same average use as the other roms above. Why this one is so much better I don't know.
Also the stock rom came with the stock Radio 06.04.06_M but with the root downgrade and then custom rom to Rev HD4 B2 I had to upgrade the Radio to one that was suggested, which is 06.03.24_M2.
Also, one thing that I noted which was also seen on my Nexus One is that when I use the GPS my car charger is not able to keep up and I will loose battery % as I drive.
All in all I am very happy with this move from the Captivate. Many see it as a lateral move, but if you ever where in the need for the GPS this is definatey an upgrade since the GPS on the Inspire is spot on.
Click to expand...
Click to collapse
Got another data point for the stock rom.
This time after the 8h my battery was at 55%, however I spend considerable time in a clean room were I have no signal at all. My other phones would usually drain much quicker in there and I believe it's because it's seeking a cell signal all the time.
So far I am very happy with the rooted stock rom, only wished it had some of the Gingerbread features.

I have consistently gotten about 9 hours usage, with 1.5 - 2 hours screen time, and left work with 40 - 60% battery. I make no effort to reduce usage, as nothing even comes close to the screens usage, except I do leave off gps when not in use. This is a general average, and I have noticed little difference between stock and 2 different versions of Android revolution, with different flashed radios. (roms always flashed at full battery) and overclocked to 1.2 with ondemand set. Overall I can say this battery is not great, but the rest of the phone is well worth it. I had the atrix for 2 weeks, and although the atrix got better benchmark scores, it was way less smooth, and a lot of market apps don't work on it, like flashlights, live wallpapers that don't support the screen, etc.
I am very glad my atrix's touchscreen failed, because if it didn't, I probably would have never tried the inspire, and I am much happier with the inspire.
Sent from my Desire HD using XDA App

Battery Life: 1d 12h?

Using Faux rom (Kernal version 2.6.32.41-CM7-Faux123-v0.2.3)
I was able to get a crazy amount of life out of the G2x! Anyone else able to get some times like this?
When I first got the phone it would only get about 4 hours.

i've been on 11 hours, Nexus AOSP, and am at 85%

With SetCPU and underclocking when idle or on calls?
Is Juice Defender involved?
Exclusively on GSM?
Are Auto Sync and GPS off at all times?
Please provide context.
Sent from my LG-P999 using Tapatalk

jabhome said:
With SetCPU and underclocking when idle or on calls?
Is Juice Defender involved?
Exclusively on GSM?
Are Auto Sync and GPS off at all times?
Please provide context.
Sent from my LG-P999 using Tapatalk
Click to expand...
Click to collapse
Yes, setcpu and some UC, phone goes to min processor on screen off
Juice defender set to standard
data set to auto
auto sync gmail, gps only on demand
note today was a very, very light day of use. Yesterday I used it moderately, checking emails, maybe a call or two and several hours of music and was at 50% after about 14 hours.

Zspy1985 said:
Using Faux rom (Kernal version 2.6.32.41-CM7-Faux123-v0.2.3)
I was able to get a crazy amount of life out of the G2x! Anyone else able to get some times like this?
When I first got the phone it would only get about 4 hours.
Click to expand...
Click to collapse
I have tried virtually every ROM and kernel combination for the G2X and for my phone and usage pattern I have had the best luck when I returned back to CM7, currently RC1 without OC/UV kernels, without SetCPU/PimpMyCPU, and without Juice Defender, or any similar such programs. My gains appear to be achieved by better efficiency with the screen off. The only modification that can be responsible other than CM7 itself is that I have the phone 2G only unless I need 4g at which times I turn it on manually. I think this is the actual cause of most of my better battery life.
Recently I went 32 hours of light usage (maybe an estimated 3 hours of phone calls and 2 hours of actually performing some task in Android) and was at about 35% battery life (although I believe battery percent is totally meaningless on this or any GB Rom for the G2X). I can easily make it sun-up to sundown with moderate to heavy usage unless it involves lengthy playing 3d video games or similar cpu/video intensive tasks.
When I first had the phone (completely stock) the battery would run out before 8 hours even if I didn't use it at all. I think I was getting great battery life with the AOSP ROM (Faux) and Eaglesblood ROM without modification. I am came back to CM7 rather than those others for purely aesthetic reasons.
My conclusions are merely based upon extensive trial and error and subjective impressions. I am not an expert at anything, except perhaps backgammon, lol

2g only is not a fix in my opinion. I purchased a 4g phone for a reason. The software and drivers are still an issue. I get a solid day (12 - 16 hours) out of a single full charge with 3 email acounts checking every 30 min. Surfing the web and a little game play for fun. The screen is the biggest draw on the battery. My battery monitor shows a direct corolation to battery draw and the screen on.

jcbofkc said:
2g only is not a fix in my opinion. I purchased a 4g phone for a reason. The software and drivers are still an issue. I get a solid day (12 - 16 hours) out of a single full charge with 3 email acounts checking every 30 min. Surfing the web and a little game play for fun. The screen is the biggest draw on the battery. My battery monitor shows a direct corolation to battery draw and the screen on.
Click to expand...
Click to collapse
I understand your point, but how often are you actually using 4g. It is not necessary for syncing email or other background tasks, in fact on my phone Pandora runs the same on 2g as 4g. And when you do need the performance of 4g it is 2 clicks away, one swipe to pull down the notifications and another to toggle from 2g to 4g. It connects in about 10 seconds, for me anyway a shorter period of time than it takes me to figure out what I'm doing. 4g appears to be the biggest battery draw with screen off. If you use JuiceDefender you can program it to turn on 4g whenever particular programs are launched.
You are right about the screen it is certainly the biggest draw with screen on. I run a bike computer with gps program. I run it with screen at full bright constantly on, gps running, plus using whatever small amount of use the program uses to operate. At this rate the battery runs out before 4 hours are up.
Oddly making phone calls appears not to drain the phone at all compared to other activities. I've taken my phone of the charger and made a 1.5 hour phone call and hang up and the phone is still at 99%.

23 hours and counting on this charge...

i can get that time on my stock rom one time my phone lasted 1 day 15hrs on stock rom.

rvdangel630 said:
i can get that time on my stock rom one time my phone lasted 1 day 15hrs on stock rom.
Click to expand...
Click to collapse
I have no doubt, there is nothing inherently wrong with the stock rom as long as you root it and get rid of the bloatware. Getting bad battery life is more a matter of something being wrong, instead of a particular rom being right.
I don't really understand the battery info built into Android, my uptime right now is just over 16 hours and I am at 25%. Which is good as anyone can expect with normal usage. But what is confusing is the usage breakdown, it lists most items at exactly 19%, Cell Standby, Wi-Fi, Dialer, Android System, and Phone idle. Voice calls is the only other item at 6%.
What the heck is Dialer doing with 19% of my battery!?!?

16 hours so far with 20% left.
8 hours of that was while I was sleeping.
While there was some screen-off time for the other 8 hours, the tasks I was doing included redownloading ALL of my apps manually, applying themes, configuring widgets, browsing xda, email, light texting, and a couple short calls.
I am running CM7 with stock kernal. I have like 40 widgets running (probably an exaggeration). I'm running Juice Defender set to disable data/wifi when screen turns off, and enable it for 2min every 15 min. I also have setcpu running. I increased the min to 456 instead of the default 216 because it seems to keep me from experiencing the black screen of death when I leave it higher. My screen-off profile is 456/456, and my in-call profile is 608/608.
Overall, considering that I keep all syncs set to auto so I get instant notifications of gmail and sms, and it takes all of about 3 seconds to turn the data/wifi back on when I turn the screen on, and I don't have to constantly go back and forth messing with 2g/3g. I am extremely pleased with this phone now.

Been unplugged since I woke up this morning...13H 57M and have 40% left.
That's sending many texts, tweets, and using the GPS app for my round of golf today.

currently at 2 days (actually 1d, 23h, 44m) and I still have 30% left. I would say light to moderate use.
Currently running cm7 on nightly 65 with the stock kernal. No setcpu/pimpmycpu or any juice defenders.

Engadget lies about Charge battery life

I purchased the Droid Charge based on the Engadget review of the device. In particular, I wanted a device that could get on the LTE network AND have great battery life. This excerpt sold me:
When it comes to battery life, there's no competition. The Charge blitzed through a full day of what we'd consider typical use, coming off the charger at about 9am and not getting slotted back in again until 9pm the next night. Yes, you read that right, two working days of what we'd consider average use with GPS and WiFi on, taking pictures and videos, all powered by a single 1,600mAh battery. Granted, we weren't running our performance benchmarks at the time, but we were hammering the LTE antenna to get some speed results.
I expected to get, at a minimum, a full day's charge using LTE on this device, considering I live in an area where LTE isn't hard to come by (Los Angeles). Alas, I was sorely disappointed when my battery drained within 5 hours with minimal use. 5 hours!!! How can Engadget claim it will last for two days and that "there's no competition." It's totally misleading. The Droid Charge has a serious battery issue which nobody can seem to get to the bottom of. I even tried installing the latest Gingerbread rom to ameliorate the issue, but to no avail. Has anyone gotten a full day's use out of the device when on the LTE network?

Stockmoose16 said:
Has anyone gotten a full day's use out of the device when on the LTE network?
Click to expand...
Click to collapse
I just got back from a full day's use on 4G with GPS on, WiFi on and Exchange and Gmail pushing mail as needed. I did not, however, text at all. One of my pages has an IP camera app that updates three feeds (snapshots) at least every five minutes. I am in a pretty consistent 4G area except when I'm at home (Philladelphia suburbs by my home is in a geographically challenged location)!
The phone just turned off as it dropped below 2% so I can't give any battery stats; I've been following the battery recalibration procedure listed here.
Keep the faith...you may not reach two days but you should be able to get a lot more than 5 hours!

rmanaka said:
I just got back from a full day's use on 4G with GPS on, WiFi on and Exchange and Gmail pushing mail as needed. I did not, however, text at all. One of my pages has an IP camera app that updates three feeds (snapshots) at least every five minutes. I am in a pretty consistent 4G area except when I'm at home (Philladelphia suburbs by my home is in a geographically challenged location)!
The phone just turned off as it dropped below 2% so I can't give any battery stats; I've been following the battery recalibration procedure listed here.
Keep the faith...you may not reach two days but you should be able to get a lot more than 5 hours!
Click to expand...
Click to collapse
Out of curiosity, which ROM are you using to get this kind of battery life? I just installed the latest Gingerbread leak and my phone is leaking battery at a rate of 15-20% per hour. I saw that re-calibration post, but I'm wondering if I can simply charge my phone to 100% and place the same ROM on top of the one I already installed. Just want to make sure I don't brick my phone.
Any thoughts?

If you wondering if you can just replace your current COM with the same one you are using by just replacing the files on the SD card then yes you can. If you're asking about re-flashing the same ROM over it again without wiping during the calibration then you can. It shouldn't harm anything.

Schneeder said:
If you wondering if you can just replace your current COM with the same one you are using by just replacing the files on the SD card then yes you can. If you're asking about re-flashing the same ROM over it again without wiping during the calibration then you can. It shouldn't harm anything.
Click to expand...
Click to collapse
I've already installed the latest Gingerbread ROM and updated all my apps and widgets on the device. Can I now charge the device to 100%, bump charge a couple of times (per the instructions in another post on the board), and then restart and wipe the battery stats in recovery mode? Or, do I have to charge to 100% and then completely reinstall the same exact ROM on top of the one I just installed?

Stockmoose.
5 hours? That's questionable that you only got 5 hours with minimal use. No Engadget did not lie, and until the 1700 mah phones are released the end of the month, there is no comparison.
Only with Altered Beast and heavy use was I able to kill the battery in under 8 hours. So I would chalk it up to a bad battery. Not everything is perfect.
Gingerbread is a leak, so trying to compare it to the stock rom does you no good.

You can wipe the battery cache without having to re-flash everything again.

Agreed, I was heavily influenced by the Engadget review and was seriously disappointed when I struggle to get a day's worth of usage out of the stock ROM on 4G.
The Gingerbread leaks have some serious battery issues. I reccomend flashing Humble v1.3 (Froyo) and undervolting. Best battery life by far. I can hammer the LTE radio for a few hours straight.
As a side note, all of Verizon's current 4G Android offerings have awful battery life due to having the dual CDMA and LTE radios. That being said, the Charge evidently has the best life out of the three of them. Future phones (when Verizon dumps CDMA altogether in favor of LTE) will have way better life.
Sent from my Droid Charge

kvswim said:
Agreed, I was heavily influenced by the Engadget review and was seriously disappointed when I struggle to get a day's worth of usage out of the stock ROM on 4G.
The Gingerbread leaks have some serious battery issues. I reccomend flashing Humble v1.3 (Froyo) and undervolting. Best battery life by far. I can hammer the LTE radio for a few hours straight.
As a side note, all of Verizon's current 4G Android offerings have awful battery life due to having the dual CDMA and LTE radios. That being said, the Charge evidently has the best life out of the three of them. Future phones (when Verizon dumps CDMA altogether in favor of LTE) will have way better life.
Sent from my Droid Charge
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Curious while running Humble v1.3 and undervolting which kernel are you running atm. And second what undervoltage settings are your using atm currently so yo uare getting random reboots. Reaosn I ask is I just flashed v1.3 this am and updated to Imnut's newest OC kernel but have left it alone right now without touching any voltage settings. So any input would be great and I'd like to set mine nad check it out to see if I can get even better battery life out of it. Thanks

Pro tip: Never buy anything based solely on one review.
Sent from my SCH-I500 using XDA App

will2live said:
Curious while running Humble v1.3 and undervolting which kernel are you running atm. And second what undervoltage settings are your using atm currently so yo uare getting random reboots. Reaosn I ask is I just flashed v1.3 this am and updated to Imnut's newest OC kernel but have left it alone right now without touching any voltage settings. So any input would be great and I'd like to set mine nad check it out to see if I can get even better battery life out of it. Thanks
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This should help.

I get about 12 hours with minimal to moderate usage throughout the day 4G, wifi/gps off for the majority. I might have to try this bump charging, though. Would be incredible to get a solid day out of this thing.

9 hours of using my phone to check XDA post, playing bubble buster, and texting and my phone is at 77%. Only thing different on my phone is i'm using SetCPU to undervolt. But even with that. if you are only getting 6 hours with minor use. There is something wrong.

I just did a solid 36 hours by staying on my home Wifi almost the whole time. I'm using Gummy Charged 1.8. Before everyone starts calling bull----, I probably used the phone a total of 1 hour over that period of time.
Normally, it lasts 14-18 hours with only Exchange mail and an hour of gaming (no facebook, social networks, etc.)
If I recall correctly, battery life was an issue with the gingerbread leaks.

I did the battery charging cycles as mentioned above and erased the battery stats last night. Now I'm down to 20% after 6 hours of light use. That's pretty much the same way as before. What did I do wrong?

robstamack said:
I just did a solid 36 hours by staying on my home Wifi almost the whole time. I'm using Gummy Charged 1.8. Before everyone starts calling bull----, I probably used the phone a total of 1 hour over that period of time.
Normally, it lasts 14-18 hours with only Exchange mail and an hour of gaming (no facebook, social networks, etc.)
If I recall correctly, battery life was an issue with the gingerbread leaks.
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Not a chance I'll say bull**** that is for sure. When leaving the device on Wifi battery life will DRASTICALLY increase. The radio in the device is what is eating it up. If you want to conserve even more battery I've found and don't ask me why if you actually turn off Mobile data and then turn Wifi on it will help even more.
Ran a test last night and with over 7hrs on Wifi it dropped on 5%

robstamack said:
I just did a solid 36 hours by staying on my home Wifi almost the whole time. I'm using Gummy Charged 1.8. Before everyone starts calling bull----, I probably used the phone a total of 1 hour over that period of time.
Normally, it lasts 14-18 hours with only Exchange mail and an hour of gaming (no facebook, social networks, etc.)
If I recall correctly, battery life was an issue with the gingerbread leaks.
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I've gotten 24 hours with about 20% to spare going in and out of Wifi and 4G. I had 3 gmail accounts sync'd to the phone and I probably streamed about 20 minutes worth of music using Google Music. But, I probably used the phone for a combined total of 1.5 hours over that period, and it was a slow day, so I actually didn't get many emails.
I think I was using one of the Froyo Gummy ROMs.

I don't think it's very fair to use custom ROMs and then complain about battery life. Was your battery life lower than 5 hours on the stock ROM? Did you even use the stock ROM?

06ms6 said:
I don't think it's very fair to use custom ROMs and then complain about battery life. Was your battery life lower than 5 hours on the stock ROM? Did you even use the stock ROM?
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Try reading more than skimming the OP. He implied that he started stock there, and about 3 posts down said that it was ridiculous that even the stock ROM couldn't get 5 hours.

doodlebro said:
Try reading more than skimming the OP. He implied that he started stock there, and about 3 posts down said that it was ridiculous that even the stock ROM couldn't get 5 hours.
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My apologies, I misread his second to last sentence in the OP.
Either way, 5 hours is not normal and I wouldn't blame the Charge just yet. Not sure if you guys have official 2.3 yet (I'm a Thunderbolt owner myself), but I know the Froyo ROMs on the TB have a very noticeable increase in battery life compared to the Gingerbread leak builds.
I get about 6-8 hours of heavy use on my 2.3 ROM on the TB. Probably closer to 13+ with Froyo.

Humble v1.3 Battery life

List here what you guys are doing to maximize your battery life. I know people claim crazy hours. So what modifications/programs are you using to achieve your numbers? PLease list:
ME:
ROM:Humble 1.3
Kernel: PeanutButta Jelly Time - OTB Edition
Battery life: 14-16 hours
OC: none. Stock 1ghz
- im on 4G all the time. Normal use. No overclocking. Just straight ROM + Kernel

ROM: Humble 1.3
Kernel: The one that comes with the rom
- Mobile data on, all other radios off
- CDMA mode only, no 4g here
Battery life: 24 hours + easy
I use my phone for most texting with occasional web surfing and some games at work. When I send a lot of texts in one day, my battery life obviously goes down, but I can still make it through a full day with no problem.

Would be really neat if someone would collect 3g battery statistics/battery life and then separately collect 4g battery statistics/battery life and report lengths of time on each....
**4G is a battery monster on any rom**

ROM: Humble 1.3
I'm in a 4G area and I don't like disabling it, so I'm only getting about 6-8 hours, post battery-calibration, with moderate usage. I do try to keep WiFi and Bluetooth disabled whenever I can, and I really wish I could improve those numbers. Very jealous of all of you who are getting these monster numbers...

I have EE4 debloated and I have done nothing but root and I was able to go almost two days on a battery. That was with minimal texting and little calls, but it lasted. My Incredible would not even last six hours with minimal use. With playing games and texting, I easily go a full 8-10 hours and still have between 20-30%.

I'm using Humble 1.3 with non-OC PBJ kernel. I'm getting sick battery life. 18 hours with moderate / heavy use 4G on the whole time (1 hour web browsing, checking email all the time, a few phone calls, 1-2 hours of games, downloading apps, etc). In light to moderate use I get a day and a half and I never disable 4g!
Stock I was struggling to get 10 hours.
What I did:
1) Installed Humble
2) Installed non-OC PBJ kernel (lower voltage than OC kernel)
3) Do proper battery calibration
5) Uninstalled some apps with titanium that were running in the background (Samsung Sync, Samsung Factory test, Visual Voicmail).
6) Set display on minimum brightness.
*7) Donate to Danalo for his awesome ROM
*optional but highly recommended

soooo i took my phone off the charger around 9:15 this morning after letting it die and charging it all night, got home at 4 (don't bring my phone to work since i work at a summer camp), already down to 78%. I had only two messages while i was gone and my e-mail.
Wtf is wrong with my phone/battery?????
how do i get humble??? this is my first smart phone so i've never rooted before and i'm extremely wary of doing it so i'd really like to find something that is extremely thorough

If you guys really want to conserve battery and are around Wifi turn Mobile data off completely and then hook up to Wifi. Ran a test yesterday on Humble 1.3 w/PBJ OTB kernel and it only dropped 5% in just over 7hrs. The reality is the radio is what is killing the battery in most case. Specially if you leave it on 4G and are in a weak signal area. i noticed that last weekend when I was down in the city and had maxed signal all day in $g and the battery life was great. As soon as you start dropping bars or signal it starts eating battery

hockeybpr25 said:
soooo i took my phone off the charger around 9:15 this morning after letting it die and charging it all night, got home at 4 (don't bring my phone to work since i work at a summer camp), already down to 78%. I had only two messages while i was gone and my e-mail.
Wtf is wrong with my phone/battery?????
how do i get humble??? this is my first smart phone so i've never rooted before and i'm extremely wary of doing it so i'd really like to find something that is extremely thorough
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go here to install humble
http://forum.xda-developers.com/showpost.php?p=15178611&postcount=1