Dr. Battery | webOS Nation

Dr. Battery 24

by somline Tue, 31 Aug 2010 11:35 am EDT
Last Updated: 
Current Version: 
Requires Root: 
Available via Repository
Total Downloads: 
Your rating: None Average: 3.9 (17 votes)


Dr. Battery: analyze and recalibrate your battery Features:

  • Get the true capacity your battery can hold
  • Recalibrate your battery
  • Get reliable info about remaining runtime
  • Repair your 20% drop 0% problem
  • Try to squeeze out more of your battery

How to use:

Because of the new A6 chip and a change in the source code calibration is not supported on the Veer, Pre3 and TouchPad.

Please use the infobutton on each scene for help To start the calibration, best to start with a battery at e.g.10-20%. Then disconnect the charger/tuchstone let it go down to 0%. The app (hopefully) will tell you to connect the charger (10-30 seconds) before shutdown. Be patient. If calibration fails after battery is charged please set the health to 100% as if it's a new battery and recalibrate again. The health setting is in the app menu of the recalibration scene

How to install:

Install with preware: All Applications -> System Utilities

Package available in the webos internals feed No extra Service necessary any more. Its bundled into this package. Please follow the link to the forum thread below for additional information. If you don't find the app in preware here is the link:


More Screenshots


GPL v2 Open Source - Learn More


Free forever

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Discussion, Changelog, and Support

Discuss this app, get support, and read the changelog for Dr. Battery in the Official Forum thread


great app, thanks.

Very nice work TY!

would not download :(

Hi I'm new to the WebOS environment how do i go about downloading this App? Thanks for your Help>

can't get it download

The download link is not working. It says file not found.

My Mugen 2800mah battery shows 4 volts. To calibrate it has to go down to 3.4 volts. Can this be changed?

Download link is broken. Help?

Please install with preware:
search for dr.battery or "All Applications -> System Utilities"
Link above is still working.

If you have problems please send mail/pm to somline or post in dr.battery thread.

f..k you with your forever free app which you can not download.

Same here, "file not found"

"file not found"

I downloaded it for my palm pre but cannot find it for Touchpad. The pasted link returns "file not found" what's up with that?

"file not found"


Great little app that I've been using on my Pre+ since the get-go.

On my new TouchPad, it seems a bit off. For example: after a couple of days of plugged-in charging, it shows:

Capacity Left: 5398 mAh 100%
Health: 95%
Manufacturer Rating: 6612 mAh
Calculated Left: 6281 mAh

Possible not fixable on the TP ... but just wanted to supply a data point.

-- Stan

Can't download,because file not founded!

"file not found" :-(

free my **** ...file not found.....another worthless app

Do you guys not have Preware installed? No problems installing this on my Touchpad and Pre 3. Great app. Thanks a lot!

KILLED MY BATTERY, installed and after 20% shows 0%,

the download links brings to a white page without any download...

I wonder, why calibration is not supported on the Pre3?