Support and General Use > Hardware
Battery calibration - Sansa c200
Multiplex:
I have a couple of C200 players which I can run the benchmark on if you want a larger data set to average up.
I'm assuming there are instructions somewhere.
They are both fairly new so it may be best to get a few more cycles in before measuring them. And I haven't invested in any Micro SDHC cards yet - that might be a consideration.
Just holler...
tomkiewicz:
there is another issue - i cannot make complete benchmark - i tried twice in this way - it runs from 100% to about 50-60% and log file ends with 6-7 hours in column "Time left" - another words, it have logged about 5-6 hours, but really plays about 12... Semi-solution to this problem (my third try) is stopping and resuming battery bench every 2-3 hours, but i think, it affects results... May it be problem of low amount of songs played (about 10MB)?
Now I uploaded about 100MB of music and run fourth bench...
pixelma:
--- Quote from: tomkiewicz on April 08, 2008, 12:06:19 PM ---another words, it have logged about 5-6 hours, but really plays about 12...
--- End quote ---
The battery benchmark plugin doesn't work correctly on the sansas. There is a quick hacky solution to it in the tracker - together with a little information to be found in/through the SandiskE200BatteryMeasurements wiki page. The same applies to the c200 as well, you would need to compile your own build with this patch applied.
tomkiewicz:
argh... during the OF test my player just switched off at about 65% of battery :/
I think, that writing down every voltage change may decrease playtime - I have written another patch, and uploaded in that thread: http://www.rockbox.org/tracker/task/8070 - now I can finally make proper benchmark for rockbox
saratoga:
--- Quote from: tomkiewicz on April 09, 2008, 04:26:58 AM ---argh... during the OF test my player just switched off at about 65% of battery :/
I think, that writing down every voltage change may decrease playtime - I have written another patch, and uploaded in that thread: http://www.rockbox.org/tracker/task/8070 - now I can finally make proper benchmark for rockbox
--- End quote ---
Is the log attached with your patch suitable for battery calibration?
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