Database Users

My Battery Life WOW! *Pic for Proof*

Using Myn's ROM with the Battery Tweak, I have FaceBook syncing and I have 2 gmail accounts syncing along with Weather every 3 hours, Facebook every 2 hours.
Nothing else as of now and using Itching Thumb App.
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I get that stock with fairly heavy usage.

now lets see that screen on time.

ronron23 said:
now lets see that screen on time.
Click to expand...
Click to collapse
Not needed. From the pic he attached it's obvious the phone was in standby most of the time.

Man, you even use ya phone?
What is with this obsession of battery life goin on 'round here? I say, as long as you can get better battery life than a stock rom, you've won. Keeping the phone on for a day or two without charging seems like a good idea, but everyday isn't the same, and one day you may need to use it way more than any other day..if you start that day off with only 30% just because you wanted to see how long your battery would last, then you really gotta limit how often you use your phone just so that it can make it till the next time your around a charger.

How do u check wake time?
Sent from my PC36100 using XDA App

I agree, but it want a heavy day. When I finally did have 14% left and used tv flash battery seasoned super fast. I forgot, I'm using juice defender too
Globetrahter

The battery needs to be charged? I bought my phone back in June. The battery is now at 70%. I figured I just had to buy a new one when this one runs out.

Barely used phone. Come on.

Display 4%? Is that possible?

I can go a full day and a half, 36 hours, without a charge and I am using the original sense android... and I use my phone normally, I text, read usatoday, tmz, check email a few times, use the xda app... and I have wifi on all the time! What's this beef with battery life on these forums? Mine lasts forever! I just have things update manually, I don't let anything run without my permission.
I do, however, turn my phone off the 6 hours I am sleeping.

wifi is on = low battery usage, atleast in my experience.

Indeed. I got 1 day and 19 hours on stock nonrooted 2.2 back. and i used it for some medium texting. and some gps applications...maybe 2-3 hours max awake time. i dont think you used it much...the excessive 3G usage from FB doesnt mean anything.

g0ldenchild562 said:
How do u check wake time?
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
You should be able to get what you're looking for from the Spare Parts app.

According to my calculation thats is 69min of display usage.

g0ldenchild562 said:
How do u check wake time?
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
Menu > Settings > About Phone > Battery

drsiaca said:
According to my calculation thats is 69min of display usage.
Click to expand...
Click to collapse
According to mine, it's 122 min of screen on usage.
I had this scenario on my phone running myn's rls2 + king cfs #11 yesterday:
since unplugged - 24 hours
display on - 1 hour 25 minutes
charge remaining - 50%.

so i wanted to find out how long the battery would last on standby, and to my surprise.. it turned out to be nearly 58 hrs!!! that was on stock sense rom. non-rooted. and of course with very very minimal use. i basically just left the phone alone on my desk or in my pocket all day.
here is the screenshot i took back in july:
but that kind of battery life is unrealistic with normal usage. I am a moderate user (on the higher side), and i typically put my evo on charge everyday in the morning when i get to work (on weekdays). so, the charge on my phone lasts about 25 hrs with normal usage, that usually means about 4-5hrs of Awake Time. this is after rooting the phone. and i am using a stock rooted sense rom. i have had similar results before rooting the phone as well.
on weekends, i find myself charging the phone about 3 times (over 2 days), as the usage of the phone goes very very high.
i have a charger on my desk at work for the weekday charging, and a charger in my car for the weekends.
i have recently installed setCPU, and havent really seen that making too much of a difference, but that perhaps has to do with my usage pattern.
as pointed out in many a threads, signal strength is one major factor when it comes to battery drain. i live in Atlanta and i have great Sprint coverage where I am located, and that makes a world of difference.

Globetrahter said:
Using Myn's ROM with the Battery Tweak, I have FaceBook syncing and I have 2 gmail accounts syncing along with Weather every 3 hours, Facebook every 2 hours.
Nothing else as of now and using Itching Thumb App.
Click to expand...
Click to collapse
it would help if you indicate the battery life that you were getting on stock or any other rom you were using prior to this. because there are so many variables that come into play as far as battery life is concerned. so that will help put your claim into some perspective

GaryJ51 said:
The battery needs to be charged? I bought my phone back in June. The battery is now at 70%. I figured I just had to buy a new one when this one runs out.
Click to expand...
Click to collapse
hahah.. funny

How much battery is used for you with continous usage of 30min/1hr?

Just trying to get a feel if my battery is normal or not.
With continuous internet usage over wifi, it takes up 30%/hr on the STOCK battery.
With the Sprint OEM Extended battery (2600mah), it only takes up 10-12%/hr.
So I'm wondering if my stock battery just sucks or if the Sprint extended battery is actually more around 3500mah...
How much battery is used with continuous internet usage for you?

I was just browsing the forums here for an hour and 44 minutes - little g reader too - and the first hour recorded roughly 11 percent of battery loss with straight use, shown in juice plotter. Screen brightness at lowest and wifi.
That said if I was popping tabs left and right and jumping around in the browser it would be a bit different. I think I was on Deadspin for maybe 15 minutes though. Dolphin Mini.
SWYPED from my SUPASONIC

I'm getting about 15% an hour on mikfroyo (undervolted htc 15). that's about what I used to get on older build roms (evio) and stock kernels.
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pic shows 7% loss in half an hour but you get the trend
edit: stock battery. how's your wifi signal strength?
Sent from my PC36100 using Tapatalk

Well, guess I enabled wifi after 20 minutes or so. Between 20-25 percent in 2 hours 10 min didn't have a full charge. Just started using juice plotter to track how little battery gets used when phone idle. Cool little app! Always so late to the party.
SWYPED from my SUPASONIC

wifi strength is excellent, i'm only 8 ft from the source (in my room). i keep the screen brightness at the lowest setting since i lay in bed and use the phone before i sleep for about 30 min.
i'm extremely surprised at the drainage of both yours with just the stock battery. maybe i should try and get an exchange through Sprint.

some more info on your setup? maybe it's a software issue. try system panel to see what's running and how much it's been running. it also gives you cpu speed which should throttle back when there is no interaction with the device.
Sent from my PC36100 using Tapatalk

i'm on Fresh 3.5.0.1 with the SBC kernel. I don't have any weird drainage issues over night, i sleep with it at 80% and wake up with it with about a <5% drop. I just have the usual apps running, nothing too crazy. All I use the phone for really is to browse the web.
I find that System Panel doesn't reallly help too much when i had a weird drainage issue a few months back, a hard data reset fixed that.

quocamole said:
I'm getting about 15% an hour on mikfroyo (undervolted htc 15). that's about what I used to get on older build roms (evio) and stock kernels.
View attachment 475476
pic shows 7% loss in half an hour but you get the trend
edit: stock battery. how's your wifi signal strength?
Sent from my PC36100 using Tapatalk
Click to expand...
Click to collapse
That pic shows 14% loss in about 30 minutes.
Which is normal - about 0.5% a minute.

tracerit said:
Just trying to get a feel if my battery is normal or not.
With continuous internet usage over wifi, it takes up 30%/hr on the STOCK battery.
With the Sprint OEM Extended battery (2600mah), it only takes up 10-12%/hr.
So I'm wondering if my stock battery just sucks or if the Sprint extended battery is actually more around 3500mah...
How much battery is used with continuous internet usage for you?
Click to expand...
Click to collapse
That would be normal usage with 3G. Not sure about wifi.

Wherever answers are in this thread should be in mA since percentages are meaningless on the Evo.
Spoken from my EVO 4G using Ultra Keyboard and Tapatalk Pro

look at 90%-83% when screen is constantly on for 30 min. 100-90% always drops fast.
nabbed said:
That pic shows 14% loss in about 30 minutes.
Which is normal - about 0.5% a minute.
Click to expand...
Click to collapse
Sent from my PC36100 using Tapatalk

I wouldn't say meaningless. i.e. 10% drain from a 1500 mAh battery is 150 mA no matter how you slice it.
aph said:
Wherever answers are in this thread should be in mA since percentages are meaningless on the Evo.
Spoken from my EVO 4G using Ultra Keyboard and Tapatalk Pro
Click to expand...
Click to collapse
Sent from my PC36100 using Tapatalk

quocamole said:
I wouldn't say meaningless. i.e. 10% drain from a 1500 mAh battery is 150 mA no matter how you slice it.
Sent from my PC36100 using Tapatalk
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Click to collapse
No it's not. It wouldn't be even on most Li-ion batteries in the first place, but even more so on the Evo. The firmware is programmed to oscillate between ~ 500mA and -500mA depending on voltage, all while keeping the status you see at 100%. Download Battery Monitor Widget to see this in action.

I'm Getting Great Battery Life!

I installed OMGB-6 when it was released. Then flashed invisiblek #21 kernel and the new market. Since I last charged it, I've talked on it for about an hour, used the web-browser (Skyfire) fairly moderately, sent a few emails (Gmail), and spent a total of about an hour of GPS through the application WAZE. I'm left at 22% battery left after about 22 hours of use.
I've been fairly lazy with regards to changing the screen brightness, so it's been on about 50% brightness. I've left sync and gps on during the whole time.
I've been using Watchdog as a smart task manager. I have SetCPU installed, but I haven't used it at all.
Here are some pics:
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I have not installed the kernel but my battery life is terrible. I barely have any apps and I do not use my phone a lot. I love the rom (favorite by far). Should I try to install the kernel.
Sent from my Htc Incredible using XDA App

rllong1 said:
Should I try to install the kernel.
Sent from my Htc Incredible using XDA App
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Click to collapse
Can't hurt, just nandroid first, or have a spare kernel handy.
Sent from my ADR6300 using XDA App

I chewed through my battery in about 10 hrs today with the same kernel.
Guess I use mine a lot more. I've also got 26 hrs out if it when I barely use it.
Don't think you get great battery life when you don't use it much.
I'm in CM 6.1 but that wont really matter.
Sent from my Sprint Galaxy Tab

True, I haven't been using it all that much. But compared to other ROM's I've used, this get much better battery. Everything else I've tried out got me a max of ~12 hours even on idle the whole time.
Definitely try to install the kernel. Can't hurt! Just make sure you always have a nandroid backup available.

anekdotos said:
I installed OMGB-6 when it was released. Then flashed invisiblek #21 kernel and the new market. Since I last charged it, I've talked on it for about an hour, used the web-browser (Skyfire) fairly moderately, sent a few emails (Gmail), and spent a total of about an hour of GPS through the application WAZE. I'm left at 22% battery left after about 22 hours of use.
Click to expand...
Click to collapse
Stock Battery?

50% Brightness?!?!?! Wow....battery life is not worth looking at a dull screen. 100% all the way for me...im using 1800mah from ChiChitech that I got for $20. Seems to help enough.
I'm also running a Gingerbread ROM (Evervolv a17) but can't tell what difference it's making on battery.

h3rmanmunst3r said:
50% Brightness?!?!?! Wow....battery life is not worth looking at a dull screen. 100% all the way for me...im using 1800mah from ChiChitech that I got for $20. Seems to help enough.
I'm also running a Gingerbread ROM (Evervolv a17) but can't tell what difference it's making on battery.
Click to expand...
Click to collapse
the screen is not dull when it's set low...lol 100% brightness is like staring at the sun for me.
Sent from my ADR6300 using XDA App

gr.ayre.st/s/screenshots/android/incbattery_0.png
gr.ayre.st/s/screenshots/android/incbattery_1.png
gr.ayre.st/s/screenshots/android/incbattery_2.png
Edit: I made some screenshots but XDA's spam prevention (no external links for new accounts) prevents me from actually linking them. You can copypasta if you're interested in the details.
Hydra 1.13 overclock kernel, stock ROM, stock battery, auto-brightness. I'm currently at 20% battery after 2.5 days. Light usage over the weekend, but there is an hour and a half of talk time in there and a half hour of reading.
The trick to DI battery life is keeping the data network usage/standby under control. If you're trying to send/receive data with no signal, the phone will burn through its battery in 4 hours and I've used 20% in 15 minutes trying to book a flight on a low signal connection.
Realizing this took me a few months since I live in NYC and as such, go through a lot of signal shadows. Some days my phone would be at 50% battery after 12 hours, other times it'd be dead after 6. I now realize that the short days were caused by sync services trying to run when I was in a shadow. You can diagnose this for yourself by going to the cell standby section of the battery usage. If you're over 10% or so without a signal, you have this problem.
You can handle this manually by holding down the power (on the stock rom) and enabling/disabling mobile network. This is a pain in the ass.
I handle this with some simple Locale rules along with the Mobile Signal and Mobile Data plugins. The first is to shut off the data when there's no signal. The second is to shut off the data at work where I'm usually but not always on a wireless network. The third is to shut down the data during my normal sleep hours and airplane mode if I'm at home.
These easily got me to 36 hours so I grabbed an undervolt kernel, which gets me to 2 days of regular use. Daily I do about 15m of talk, 40m reading news/email on the subway, and another 30 mins browsing/messaging/misc. My monthly data use is ~350MB.

While it is likely true that the OP and others have good battery life under their specific use conditions, battery life in general on smart phones is mediocre to poor at best. I have friends with various different models of smartphone (including iphone) and across the board battery life is not good. The exception is blackberry, but I don't consider those competitive from a tech and feature standpoint. Obviously different people are going to have different opinions and experiences based on the various factors that influence battery longevity.
The solution is to stop worrying about it, get a spare or two or three and pop in a new battery when one dies. This imo is one of the best things about the Dinc and Android phones in general. Just my 2c.

CM 7 weird battery behavior

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I noticed this. Usually the screen uses like 80% of the power after I used the phone for 5 minutes. This is after a night of my phone doing nothing and me playing around with it for 10 minutes or so. The phone idle and cell standby are really really high for some reason.
I did a reset of my battery stats but this didn't do anything.
When I was running stock sense with 2.2 it never gave me this result. Those two were always maybe around 2 or 3% or so so after a full day of use. It's weird.
Anyone else dealing with this?
Sent from my HTC Vision using XDA App

5 to ten minutes isn't really an accurate capture, have you given it a full day and then checked the stats? After five minutes it completely stands to reason that in that five minutes the display used 80% of the overall draw that happened during that span, does that make sense?

Same thing here. Used my phone for the whole day and the Mobile Standby used up like 40% of the battery. Mind you, there was a trip today so i used it for pretty much anything from playing games to downloading market apps and listening to music.
With the stock 2.2.1 Sense my display used up 80-90% of the battery all the time.

^Exactly. It makes much more sense that the display uses the most energy by far.
Half a day later.
Still seems weird to me.
Sent from my HTC Vision using XDA App

It doesn't make sense at all. This is after almost a full day of usage. I've been calling, surfing and playing games on my phone.
Sent from my HTC Vision using XDA App

Battery almost empty stats.
Sent from my HTC Vision using XDA App

I kinda figured it out. I just switched to use only 2G networks and now Mobile standby uses only ~35% of the battery. That's still too high, though.
Sent from my HTC Vision using XDA App

I'm gonna try that on my next charge. 30% is still very high though, it should be less than 5% or so I think.
Sent from my HTC Vision using XDA App

Can the radio affect the battery usage? If so, then shouldn't flashing some other one yield different results?

I have similar issues with cell standby being unusually high. My phone battery only drains poorly in one location (work) however. It will go from 98% to 15% by about lunch time even though I haven't used it. Disabling cellular data and wifi does nothing to improve it. Only airplane mode seems to stop this behavior. I have wiped battery stats and conditioned the battery and am at a loss on how else to troubleshoot this problem.

Removing WIFI calling and GanOptimizer using TI Backup has improved my battery noticeably thus far. Will need to further test over the next day to see if this was the cause of my battery drain. Here is the post I found concerning these two apps. It seems GanOptimizer puts WIFI in high performance mode. This happens when not using WIFI Calling (think you had to have used it once and then turned it off). My thoughts are that it causes WIFI to not sleep (ignoring the policy in the process) and leads to excessive battery drain as WIFI is basically running full power constantly.

i think how it work for the rightway?

Hmm... I dunno. There seems to be something weird going on with the reporting itself. This is after another day of use. I used navigation for maybe 3 minutes or so. When I look at the detailled view of that, it shows that it didn't keep the gps on or anything. It just doesn't make sense at all. I did many other things as well. Calling, texting, browsing, youtube etc. None of that is in that list.
A lot of things just don't show up in the list for some reason. Notice the display isn't even in there?
This is a fresh install that's 3 days old or so and. I don't have battery management apps or app killers installed.
Sent from my HTC Vision using XDA App

Well so much for an improvement. Came to work with battery @ 96% and two hours later it was at 69%. Android System now is apparently consuming the most with Cell Standby a close second. Think it is time for a phone wipe and slow installation of apps one by one to find out what is causing such excessive drain.

Well it seems like the error is in the reporting itself. The stats don't make sense at all, but my battery life is a lot better than when I was running stock sense.
On a side note, oh what a happy day today!
Sent from my HTC Vision using XDA App

I've been noticing the same odd battery usage on cm7.0.3. the past few days, getting 32% for cell standby and 25% phone idle :S. I've never really had usage this high for any rom except cm7, usually its my display around 80%.
I'm still getting average battery life (~18hrs on a charge) but nothing like the amazing battery life with rmk's g-lite 1.0.2.

Battery Life - How's Yours?

What has been the average battery life with your TF? Mine has been good but feel like it could be better. Today for example, after charging and an hour of soem use, it was already down to 90%...but observing, it may also have like a "sweet spot" in the % meter as I often see it stay in the 50% to 30% ranges longer than the 100% to 90%...

Pretty damn good, I usually OC mine to 1.4 and have it at performance and it still lasts like 8 hours.

I have gotten into a habit of leaving mine in the dock until the dock battery is used up and then I will switch between netbook mode and tablet mode. I'm not sure on actual hour usage but I usually get between 3-4 days. And this is really my only computer at home, so I use it quite a bit.

With average use, youtube, games, reader, web browsing about 2-3 hours a day I only have to charge about twice a week. I love it. In the one test I managed I had my screen at full brightness and always on, gps and wifi tether running while I drove around town taking my wife to yard sales I ended up around 7 and half hours before i reached 15 percent. I'd say its pretty damn good. A hell of a lot better than my Adam I had before this.

Really good. Charging every couple of days

pretty good, i dont use it all at once but if i use it normally charge every 2-3 days

Mines pretty good, OD'd to 1.5 idle at 4XX. Yesterday on a 12 hour work day: browsing about 2 hours, Fring calls, playing games for about 2 hours, USAToday/CNN apps about an hour, Polaris about 45min, and watched The Hangover at 720p.
When I got home I still had about 41% left on the battery, it was on WiFi all day, bluetooth off, and auto bright on.

Lasts 8 hours if I continuously game on it.

garak0410 said:
What has been the average battery life with your TF? Mine has been good but feel like it could be better. Today for example, after charging and an hour of soem use, it was already down to 90%...but observing, it may also have like a "sweet spot" in the % meter as I often see it stay in the 50% to 30% ranges longer than the 100% to 90%...
Click to expand...
Click to collapse
10% down for an hour of use means at least 9 hours till you get to 10% which is pretty good, and just like the producer specifies. It's better than any other Honeycomb tablet out there, including Samsung's Tabs.
I can get on my TF to 11-12 hours of moderate web browsing (forums and static blog pages, not much power hungry flash) with auto-brightness (in fact close to 10%-0% brightness cause I mainly use it in the evenings, in a low lit ambient) and other than WiFi radios off, before it reaches 10%.
That's good battery life. Comparable to my wife's iPad 2.

I was out at work for 14 hours, when i came back,my battery has fallen by 22%. This happens often. In battery usage graph, i see that my tab was been awake intermittently a no. Of times during the time it was on standby, i mean like it was awake 50% of the time, in short bursts. At the same time, wifi was also on for very short intervals... my wifi is set to disconnect when screen off. I hav pulse,news360 and youtube widgets. And the asus time n weather thing. My mail did not sync during the standby time, as i received the gmail notification sometime after i switched it on. So it was probably an app that was causing multiple 'awakenings' ! Ne idea wat? I dont sync with picasa, so that may be ruled out.
Ps-this was undocked.
Pps- i found out the picasa sync option was checked, so i unchecked it. But i dont know if the battery drain was due to this. Isnt there any app like spare parts that can atleast tell the no. Of times/duration an app was used?
Sent from my Transformer TF101 using XDA Premium App

after using mine for about 24 hours fairly heavily, and having it oc' ed to 1.5, and a fair ammount of gaming, id say i could get a solid 7 hours of use out of it while still gaming a good ammount. Prob more, but no long term results yet.

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Ne1 has any idea y this is happening? Any app that is known tho do this?
Sent from my Transformer TF101 using XDA Premium App

What can one do to squeeze the most out of the battery.
- keep the the brightness at 50%
- set wifi to turn off when the tablet is on standby.
Anything else?

My stand-by time has been horrible. From 100% down to 85% overnight, then down to 35% after 16 hrs, and the next morning, 15% left! So I literally have to recharge every other day even with very light use!
I have set wifi to disconnet when screen off, and I have weather, pulse, gmail and c-note widgets on

I use my tablet for email, sometimes youtube and lots of games. Its on stock 3.1 with root and OCed to 1.4. It's probably like 2 hours everyday usage. I only charge it like twice a week.
I set my brightness to Auto, Wifi is on, might disconnect when screen is off, not sure.