Support and General Use > Hardware
sansa battery life
saratoga:
--- Quote from: corvetteguy on November 03, 2007, 06:47:12 PM ---I went from getting about 16 hours to 3 hours, so I just want to know how to get close to the 12 hours others are getting.
--- End quote ---
http://www.rockbox.org/twiki/bin/view/Main/SandiskE200BatteryMeasurements
corvetteguy:
Maybe the problem is that it shuts off at 40% charge. My friend recently bougth an e280 and is getting the exact same 3-4 hours i am getting. Is there any way to chane the % at which it shuts down or is that a dev thing?
saratoga:
See battery_level_shutoff in \firmware\target\arm\sandisk\sansa-e200\powermgmt-e200.c.
However, unless your battery is significantly different then the standard one, I doubt that is going to help you.
P.Opus:
--- Quote from: corvetteguy on November 03, 2007, 06:47:12 PM --- so I just want to know how to get close to the 12 hours others are getting.
I have been charging under OF, overnight sometimes, so its not because of trickle charging.
--- End quote ---
And what are you doing in Rockbox. With OF, I simply played my music, pretty straight forward. However, with Rockbox, I play solitaire, Bubbles, Doom, etc. All this stuff takes more processing power and hence more power than simply playing music. Also realize that playing games, the backlight stays on constantly, where as in OF it rarely is on unless you are choosing an album, or otherwise navigating.
While there is no doubt that Rockbox in simple playback mode has approx 30 to 40 percent lower battery life in strict playback. Rockbox does indeed change the way you use your player, so you must keep that in mind.
corvetteguy:
Ya i know that. The 3-4 hours was strictly music, and most of the time it was just playing, no nav. Iccaisionally i had tostart the song again cuzit would stop for no reason, buti assume thats a bug.
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