yashsingh1/xdaforums huggingface dataset:
[Verizon Droid Charge] Homestar1217:
I haven't seen a version of our phones that this doesn't happen on. I had a Vibrant and my friend has an Epic 4G that this was/is a routine problem on. My Vibrant jumped all over the place, as does the Epic, and once like you described I reset it because it was slowing down and it dropped drastically. Hasn't happened on my Charge, but I have seen the number go up once or twice.

I bump charged 2 times last night to see if I could get any better battery life on my Charge, and after turning it on the third time I just left it plugged in till the morning when I woke up (someone let me know if that's a bad thing...). Today I grabbed it off the charger and spent about 3 and a half hours helping a friend move and by then it was already at 75%. I would be sort of OK with that if I had been using it, but I have been keeping my data off completely when I'm not on it, and I only tapped the unlock button a few times to check the time. 25% gone just by idling... That's a little bit ridiculous.
[Verizon Droid Charge] Serinety:
I wish this was working for more people. I was getting very bad battery life for weeks and was going to return this piece of scrap.. but then I did this and it worked, Which is why I made The OP.

I encourage you to use your phones until they die. I have noticed that sometimes I can drop 20% in an hour but still end up with 15 hours of usage.

Make sure when that you wipe battery stats at 4200mv (this is a full charge)

Here are ky battery stats and usage screen shots for my usage today.

And this was yesterdays usage.

Yesterday my phone was off he charger overnight and then I had light usage all day and finally plugged.it in last night before bed.

Todays usage of 14 hours ia normal. This is moderate to heavy usage. I killed he first 10% of through battery gaming after i unplugged it.

There is an app on hr market that does the battery wipe for you.

Try not to pay attention to what the percentages say.just use he phone till it dies and see how long that takes.

Post some screen shots so we can get a better idea.. I am working in isolating the battery problem so any screenshot info will help
[Verizon Droid Charge] randywintle:
Definitely works

I just wanted to say thank you, and to confirm that this procedure is definitely working.

I actually haven't gotten my phone to die yet! I'm at 14% battery after 24Hr and 47M Unplugged....

I actually used the phone which is the weirdest part :)
[Verizon Droid Charge] brian1972ct:
I just noticed that those of you getting amazing battery life seem to be on WiFi. I am going to run on WiFi for 24 hours and see what happens. With a solid 4G connection, I get about 6-7 hours, but since switching to WiFi this morning, I see a 2% drain after 2 hours and 15 minutes (pretty damn good).

Has anyone gotten more then 8 hours on 4G alone?
[Verizon Droid Charge] Enphenate:
Just tried this, reinstalled 2.3.4, wiped data, wiped cache, installed gummy 2.3.4 RC.

First initial setup, installed 6 apps, sent about 5 texts.

1 hour 15 mins in im at 69% wifi off gps off. Installed IRC for android and was on that until my phone died at around 4 hours.

Letting it charge while off now hopefully it will get a bit better after that
[Verizon Droid Charge] Stockmoose16:
Totally confused

I just installed the newest Gingerbread leak using Odin before I read this post. I installed it with the battery at about 55%. When I started up the phone, it never went to CWR, and I'm not sure how to access it.

From your original posting, it sounds like I need to start from complete scratch, reinstalling the ROM, but with 100% battery charge. Can I install the same Gingerbread ROM on top of the one I already installed?

Next, why would you erase cache and data after installing the ROM? Then you'd have to reinstall all the applications and widgets, which would be a huge headache. Please explain.
[Verizon Droid Charge] Homestar1217:
My battery life is crap with the data on. Especially in the warehouse type building I work in. I get LTE right outside, and then immediately lose it once I go through the door. My phone constantly switches signals once inside (3G/1X/None) and that just kills my battery. As for having a solid 4G signal, I can literally watch my battery go down while I'm sitting there. I pretty much roll with my data off now unless I use it. Which sucks because that's pretty much the whole point of having a smartphone, having it check things all the time...

However with wi-fi, the phone kills that radio (as far as I'm aware) while the phone is asleep, so it's only looking for wi-fi while it's being used. I tried this method, and with what I will call normal usage (although my data was only on for about 1 hour total) my phone which came off the charger at about 7:30 this morning has about 10% left. 15 hours isn't bad, certainly a days worth unless it's a really long day. However I would like to have the data on more... Hopefully an ota update can help. Or Gingerbread... :-)
[Verizon Droid Charge] Stockmoose16:
Gingerbread isn't going to make a lick of difference. I just installed the latest Gingerbread leak, hoping it would stop the rapid LTE drain, but to no avail. I lost more than 15% of my battery within an hour of switching from LTE to WIFI. Honestly, I think the original poster's calibration post is inaccurate. There's no reason for the phone to turn off unless it's put of juice. No amount of calibrating is going to change that. Verizon simply made a product that does not have the battery life to support the workload of LTE. It's disappointing, but nobody should have to plug in their phone every 5-7 hours to keep it alive.
[Verizon Droid Charge] rmanaka:
Remember, however, that unless you wipe the battery stats after flashing a ROM, battery use won't make a bit of sense...and the phone will shut off when it THINKS it's about to lose the battery so that the battery won't completely discharge. I've found that when you flash a ROM, you get whatever was in the dev's system when he/she built the package. Only when you bump charge the phone to 100%, wipe the battery stats and THEN operate the phone to a low battery shutdown will the phone get a full cycle of use and "learn" what the battery discharge profile is for your particular phone and battery.

I don't know if the phone starts to limit the charging current when it THINKS it is fully charged...it does decrease the charge rate if it THINKS it is connected to a USB port...I have experienced this when I've connected the phone to a 2 amp (and a 10 amp) battery charger source through the USB cable and unless I use a charging only (no data pins powered) the phone takes a heck of a lot longer to charge to 100%. I've purchased a charge only cable to "optimize charge" the phone when on a DC source...

HTH
[Verizon Droid Charge] Stockmoose16:
I'm certainly willing to test your theory, but I have a question...

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), 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?
[Verizon Droid Charge] Stockmoose16:
My other question is, your explanation above assumes people are putting ROMs on their phones. What about those who used the stock OS? Why are they getting crappy battery life?
[Verizon Droid Charge] Serinety:
I think it may be time to.figure out what people are doing when they get crappy battery life. Today I flashed a new rom and I did the same procedure as usual only i didnt have time to wait for the battery to drain so I killed it as fast as possible.

I turned on wifi tether and let my laptop play netflix movies. I turned on glympse and set it for 4 hours (this keeps the gps on and uses data). I set screen to not shutoff.

With all this running it took a little over 3 hours to kill it from full charge.

If you say your getting 4 hours and your not using it like that... there is a problem with the way your phones are reading the battery.

Also.. it seems the 4g radio is a power hog.. but even ins a 4g area I don't die in 4 hours reguardless of calibrating the battery or not

When I was running totally stock I was getting 20hrs of light use and 15 or so of moderate use.. and that was out of the box. BUT I don't live in a 4g area and I am almost always on wifi.

We have to compare apples to apples if we are going to help everyone figure out the problem. If I get great battery but I don't use my phone like you do then its not an accurate comparison.

Maybe we could do overnight tests in airplane mode. Say.. 8 hours unplugged in airplane mode starting with 100% charge. We can compare different people.. if we all get the same discharge then we know related to he radios. If we still get different results then we can start to narrow it down.

Also. We need to note the kernals and roms being used. All of this is going to play a factor In Determining what normal drain is. If we can show that your phone is indeed getting the "normal" discharge, then individual mileage may vary dependant on your usgae habits.

Let's get some tests in
[Verizon Droid Charge] Serinety:
O

I don't get that. I purposley tired.to.kill my battery. It took over 3 hours and I had wifi tether on, glympse,and screen set to not turn off.. cpu usage was 100% the entire time.

If all u did was what you said.. then your battery stat file is very very messed up.

We need to fix that
[Verizon Droid Charge] Serinety:
Io

To get into recovery..with the phone off, press and hold vol up, home, and power. When u see the samsung logo, let go of power. Hold the other 2 keys until you see CWM
[Verizon Droid Charge] jpog:
So I am an unrooted phone..and just did the boost charging (or whatever its called) describe in itmes 1 through 4...this WORK AMAZINGLY...I was getting 13 hrs a day on light to medium use but over the weekend I got close to 36 hrs out of one charge. I did have everything turned off except the constant updates..and I was in 4G LTE all the time.

No this is where it get's succky..I did this method on Friday..its Monday now and my battery life is worse..almost out of batteyr and its been only 7 hrs..with very light use...only difference is the bulding I work in is in a Fringe area so..my phone is constantly jumping from 1 EVDO, to 3G to sometimes 4G and back..is this why my battery stinks..or do I keep having to do this boost charging?
[Verizon Droid Charge] Homestar1217:
I'd be willing to put money down on that being the reason the battery gets sucked dry. I experience the same thing where I work. I get a full 4G signal one step outside the building where I work, but once inside that immediately switches down to 3G and often to 1X and back all the time. I pretty much have to turn my data off to get my phone to last me through a shift at work. It's depressing. Though I can confirm that on a totally stock Charge I have seen drastically better battery life with the Steps 1-4 method. Still not stellar, but much better.
[Verizon Droid Charge] sammyguyana:
i don't know how to "thank you" (no thanks button anywhere, im new here), but THIS METHOD WORKED GREAT on my charge.

I am not rooted.

Followed your directions to a "T", and today I've used the phone to d/l and install at least 10 apps, including golauncher. 10 texts, 2 x 1 min calls, wordsw/friends, 4g on when i need it, off when i don't, and my batt is still at 71% at 10 hours since boot.

Yesterday before this, i was at 40 % with similar use for comparison.

The only NOOB suggestion i have, and this may be common knowledge, but when you say "boot directly into recovery and wipe battery stats", you mean to "clear cache" right? That was the only option i had, and i did, and lost everything, but got most of it back sans the settings...no big price to pay for 30 % better battery life.

Cheers.

SG
[Verizon Droid Charge] Khanusma:
I wonder if the bump charging is helping the phones more than the calibrating?

Just a thought. I am one of the few that the calibration has not helped.

EDIT: I think my battery is screwed up big time so I am getting a new one from VZW. My phone is reporting 100% charged and then I take charger off and then phone immediately reports battery at ~50%. I had two phones with the same battery and the issue occurred on both so I assume its the battery.
[Verizon Droid Charge] Kamar234:
Well, I just came on here to say thanks. I have heard about bump charging since my droid two phones ago, but my battery life was never poor enough to warrant giving it a shot. I was pretty frustrated with the battery life on the Charge. It was abysmal to be generous. I would charge it and go out and it would die in my pocket in 4-5 hours. It lasted for around 11 today, but I was on it almost all day. I didn't use it for about 2 and a half hours and it only went down to 97%. It was sitting on standby on the gb leak with deep sleep disabled, which is even more impressive. Glad you put this tutorial up. I am already reaping dividends.
[Verizon Droid Charge] sammyguyana:
update

Still on my first charge from the bump charge described in this tutorial.

Stock Charge. Moderate/heavy use for over 24 hours. When not used, turned off wifi and 4g.

Bat level =3

Time since boot: 26:31

Bvoltage: 3535

Pretty darn good, since the day before I did the calibration, I did pretty much the same thing, mod/heavy use, wifi/4g off when not used...and got about 6-8 hours. Battery would deplete on my desk, 4-6 % / hour for no reason.

Thank you OP.
[Verizon Droid Charge] sammyguyana:
do you guys let it die?

after doing this...do you guys always let your phone die (charge=0) before you plug it in, or do you plug it in earlier?
[Verizon Droid Charge] jaylikesdroid:
Wanting to try this as my only disappointment with the Charge is how often I am charging it. Question though that I didn't see answered yet in this thread. After bump charging and a full discharge will it hurt to throw in a different batter or is the full recharge while off important to setting up stats? I ask because I have the cradle with extra battery and have trouble finding time to leave the phone off for long enough to fully recharge. (Its my only alarm clock right now so overnight off is not great).
[Verizon Droid Charge] droy.cms:
I've done the bump charge method twice (charge to 100%, unplug and charge to 100%, repeat, repeat, use the phone till it dies and then charge to 100% with power off). Even after this, when I charge with the phone turned off, once I turn it on, the battery level is only 98% and still drains very quickly when in idle. I have not rooted the phone, I've just tried to use this method for charging.
[Verizon Droid Charge] BankZZ:
I have two batteries. Will swapping batteries mess this up?
[Verizon Droid Charge] sammyguyana:
UPDATE Day #3

Ok, so yesterday, after discharging completely, i charged to 100 while OFF. Booted up, and used the phone the same, "realistically", updated, and d/l'ed some apps, and watched a few youtubes, emails, and calls/texts, as usual the past few days. This time with either wifi, or 4g on at all times. My battery was at 37% after 6 hours. So, I figured I wasn't going to make it through the night...so I shut off 4g. Wifi at home was left on all night. Phone lasted through to the morning, at 27%, and in the morning, went down to 1% after 17 hours of use on the clock.

So for day 3, today, I charged while "ON", to 100, and am keeping 4G OFF all day, unless needed. I am keeping WIFI on all day, even if im not in a wifi area. Just to see what happens. So far, it looks like I'm going to have to use the Charge without 4g when not needed.

I wish there was a free widget that had on off 4g
[Verizon Droid Charge] Airsushi:
Just wondering.....could you also use this method to calibrate your battery?

http://xdaforums.com/showthread.php?t=1024867

"Battery Calibration

[APP] by marosige

version 1.2

Requirements: Android 2.1+ | Root permissions

Calibration needs to be done after flashing a new ROM, but you can calibrate any time you think your battery is miscalibrated. This program does it by removing the batterystats.bin system file. The OS generates a new clean batterystats file soon, thus any fake information from the previous ROM is removed.

It's suggested, but not necessary, to let the phone fully discharge after calibration, then charged to 100% without break.

The app shows your actual battery status, and only allows you to start the calibration (i.e. removes the file) when it's fully charged, unless you force earlier calibration.

The voltage meter can be useful too. Full charge is around 4200mV.

There is an option to beep when 100% is reached so you don't have to closley follow the changes."
[Verizon Droid Charge] :
That's actually the app I use. It's the same thing, wipes the stats for you without going into recovery. I used it alot more on my Thunderbolt
[Verizon Droid Charge] Airsushi:
Thanks - I will try that now cause the battery for my Charge sucks right now. Took it off the Charger @ 4:30 am this morning and by 5:30 am (very light usage) it was down to 87%.
[Verizon Droid Charge] :
What rom are you on? I had HORRIBLE battery life on Humble 1.3

1.33 made battery pretty legit :) along with the calibration. I calibrated like twenty million times on Humble 1.3 and it was horrible :(
[Verizon Droid Charge] letsgophillyingeneral:
Does this look funny to anyone? What the hell was with the sudden drop?
[Verizon Droid Charge] Airsushi:
Sorry for the questions if the answers are obvious....

1) What app are you using to display the graph?

2) Is that a graph of battery life/drain or 3g/4g radio reception?
[Verizon Droid Charge] Airsushi:
Using Humble 2.1 on bloated gingerbread leak. I was trying the leak because it supposedly had a better 4g radio.

Not so much on the 4g radio.....
[Verizon Droid Charge] letsgophillyingeneral:
1. It's the Gingerbread battery stat tool.

2. Both. I was in a 4G area until ~4:45pm, then it was 3G for the rest of the night. But yes, the sudden drop was during 4G time. However, I believe the sudden drop occurred after flashing a new ROM update in CWR.
[Verizon Droid Charge] juanzr1:
Don't need no darn calibration, you need configuration lol. Just went 26 hrs with one charge, on heavy usage.
[Verizon Droid Charge] ducati966:
maybe it would help if everyone with great battery posted their configuration. For example what is your display level at? how often are your apps doing auto refresh ect.
[Verizon Droid Charge] Triple Black:
I just did the battery calibration and am now at 50% battery and have been up for over 14 hours. I am pretty amazed. I have 3 email addresses that poll every hour and my Gmail account that is push. My display is set to manual but is full on. I don't allow Facebook or Twitter to auto sync. I think they sync when I open them. I think my weather widget is set to update hourly. Since 4G wont be on until Thursday here I am running 3G only until then. I made sure to sign out of Google Talk and disable auto sign in on that and any apps that I don't use regularly. I have Google+ and that doesn't seem to be bothering the battery much.

I am running Gummycharged latest Froyo ROM w/ Voodoo lagfix and PBJT kernal.
[Verizon Droid Charge] FreeriderBit:
Holy Crap. This really works. It's official - the DROID "Charge". (Or is that "Discharge") ;).
[Verizon Droid Charge] dvigue:
i did this last night bumped charged 3 times, now im letting it drain, i should not see any diffrence untill it drains completley and then is fully charged back correct?

is that the importnat thing her? let it fully drain then chrage after all the bump charging?

great tutorial...thanks
[Verizon Droid Charge] broomulack:
Giving this a shot. Went through the bump portion, and then used the HELL out of my phone with display turned all the way up, constant email and text, push, WIFI (with no connection), GPS (all three) etc and got about 4 1/2 hours of heavy use until it turned off. Prior to abusing it, it only lost 3% in 5+ hours of idle time, so I think I'm on the right track.

Will post again tomorrow after charging it back up and using it normally.

Thank you!
[Verizon Droid Charge] kj1060:
What is the total time people are getting? I turn my phone on at 8 and by 5 I am down to 25%. I am only doing the occasional browse for 5 minutes tops. I followed the bumping guide (already had done installation steps before) . It seems I am not getting the same battery time others are getting.
[Verizon Droid Charge] kj1060:
I did a test on friday and saw much better results. Now I am wondering how fast the battery goes down for people when they do a 5 minute web search?
[Verizon Droid Charge] scuba_bald:
Tried this last night. I left phone off and in the cradle to charge. I left on wifi and turned off bt and gps and after 1hr I'm down to 88%

I'm away from the house so I've turned off wifi so I'll see what happens. Wifi showed over 80% battery usage.

Question: I see that even though my percent is low, the voltage still shows 4000 mV. Around what voltage should the battery be before it is discharged? I'm wondering if the battery is bad.

Thank you
[Verizon Droid Charge] kj1060:
I don't know what to believe now. The past two days I checked my phone every hour and it seemed to be about 10% per hour. Today with about the same usage and on 4G all day I am just under 70% right now. I will see how things go tomorrow to be sure.
[Verizon Droid Charge] lolminraise:
Use this method instead.

http://xdaforums.com/showthread.php?t=1187698
[Verizon Droid Charge] kakistocrat:
Some Light Reading

To gain an better understanding of how Li-ion batteries work and the effects of different charging/discharging patterns, I recommend this article:

but since I'm a noob, I can't post a link, so just google Battery University

Among some of the wisdom (which is likely common knowledge among XDA-ers) here is:

-store at 40% charge; don't leave at full charge (or very low charge) for long periods

-don't use inductive (wireless) charging systems
[Verizon Droid Charge] jmorton10:
Battery life varies drastically depending on what particular apps you're running.

I have the Gorilla extended battery that is awesome. If I don't run Sirius radio or Iheart Radio the battery will last for something like 3 days.

If I run either of those streaming apps however, I can easily kill the battery (even the big one) in less than an 8 hour work day even with hardly ever turning the screen on.

~John
[Verizon Droid Charge] kakistocrat:
21.5hrs moderate-heavy use of 4g

Samsung SCH-i510 with Hyperion 3500mAh extended battery

GB 2.3.6 stock, rooted, debloated

After doing a "bump charge" (6 cycles), and with a full battery, I flashed the above ROM and then deleted the "batterystats.bin" system file, then rebooted the phone. This is my first discharge since doing this.

Granted, 21.5 hours doesn't sound like much considering the extended battery, but consider my usage. My job keeps me out in the field for long periods of time and I use my phone a lot to help with my work, so it's nice to have a battery that lasts.

-I was awake and using the phone for all but the last few hours (woke up to find it at 7%).

-I was driving around for the first 10 hours of use, so constantly switching cell towers and intermittently using the GPS/navigator.

-I also, having just flashed a new ROM, downloaded and installed a ****-ton of apps.

-Spent about 5 hours playing music from SD card and another 30 mins streaming from Spotify.

-I was using the 4g radio the entire time, wi-fi radio was only on because I forgot to turn it off (also was using mobile hot spot a little near the end). I live in a major urban area, so 4g coverage is plentiful.

-A fair bit of web and email

One interesting thing I noticed is that my last 1% lasted a looong time. I streamed most of an album on Spotify on 1% before the phone finally kicked.
[HTC Sensation] kabuk1:
... are they supposed to light up white? Cause mine are sort of a blueish periwinkle color. I don't mind, I like it honestly, but I was just wondering if that's normal or if my phone is just an odd duck.