Rockbox General > Rockbox General Discussion

How much battery life do you lose with EQ, crossfeed, dither, etc.? (gigabeat)

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tman:
Does anyone know about how much battery life you lose by activiting the various features (EQ, crossfeed, dither, etc.) on the gigabeat F40??

saratoga:
Probably not much.  The CPU is so fast, and I believe frequency scaling is disabled as well.

AlexP:
In terms of current draw, there is very little difference between playing music and not, so I don't imagine what you mentioned would add much more.

LCD makes the biggest difference I would think.

http://www.rockbox.org/twiki/bin/viewfile/Main/GigabeatInfo?rev=2;filename=Power.html

tman:

--- Quote from: BigBambi on June 27, 2007, 01:03:32 PM ---In terms of current draw, there is very little difference between playing music and not, so I don't imagine what you mentioned would add much more.

LCD makes the biggest difference I would think.

http://www.rockbox.org/twiki/bin/viewfile/Main/GigabeatInfo?rev=2;filename=Power.html



--- End quote ---

Thanks for the replies everyone.

So you're saying that there isn't much difference in battery life between playing music constantly and not playing any?

If so, that is surprising to me.

Also, regarding that link, how can 'NOT PLAYING LCD OFF (70)' draw more current than 'Playing mp3 128kbps lcd off' (46-55)???

saratoga:

--- Quote from: tman on June 27, 2007, 01:32:15 PM ---
Also, regarding that link, how can 'NOT PLAYING LCD OFF (70)' draw more current than 'Playing mp3 128kbps lcd off' (46-55)???

--- End quote ---

Theres a bug that causes how power draw when the system is first turned on.  I'm pretty sure those measurements are skewed by it.

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