Rockbox - Extended Battery Life Builds


These builds incorporate unreleased patches designed to extend Rockbox battery life from 16% to 45%

These builds were compiled by Thomas Paul Diffenbach, based on the Rockbox CVS source of 10 August 2003.
This web page is copyright (©) 2003 Thomas Paul Diffenbach. Duplication of this web page is prohibited without express permission.

The FM, Recorder, and Player builds have been tested; the 8 MB memory builds have not.

Please send questions, bug reports, or comments to the rockbox mailing list, or to ebl_test.rockbox AT diffenbach dot org

No warranty, express or implied, is made as to the usability or safety of this software. If you chose to use this software, you do so at your own risk. By downloading this software, you expressly hold harmless the software's creator and any other entities for any loss or damage, direct or incidental, caused by your use of this software.

The source code for this software is released under the GNU General Public License. Copies of the source code is available upon request to rockbox at diffenbach dot org.

Important Notes

The software can be downloaded via the links at the bottom of the page.


Please DON'T download the software if your are unable to run the tests.

Please note that this software should only be used for testing; it will drain your battery faster than non-test software, as it saves power monitoring information to your disk.

The information saved is not personally identifying in any way; only elapsed time, power level and MP3 bitrate information is saved.

The software will change your Rockbox settings. Save your settings before using the software.

The Test Plan

Michael O'Quinn made some good suggestions for how the battery tests should be conducted:
That would be five runs minimum: One dummy to prep the batteries, three actual tests, and one final test (re-run of the first actual test) to confirm the batts haven't changed radically.
  1. Preparation:
  2. Test phase 1:
  3. Test phase 2:
  4. Test phase 3:
  5. Test phase 4:
  6. Test phase 5:
  7. Report your findings:

The Software

Player Recorder FM Recorder 8MB Recorder 8MB FM Recorder