iPod How much more quickly do larger files drain battery?

Gary King

macrumors 6502
Original poster
Jun 14, 2004
495
1
How much more quickly do larger files/songs (about 80 MB or so) on the iPod drain its batteries, compared to small/regular files (like 5 MB)?
 

therevolution

macrumors 6502
May 12, 2003
468
0
All other things being equal, there should be no difference. There's a fixed-size buffer that data gets put into from the hard drive, and it plays that data until it runs out and needs to refill the buffer.

What might actually make a difference is the quality/bitrate of the audio file. A high-quality song would take up more data than a low-quality song, so if it plays a lot of high-quality songs, it'll have to refill the buffer more often. That would increase hard disk usage, which would in turn drain the battery faster.
 

barneygumble

macrumors 6502a
Apr 18, 2005
726
0
therevolution said:
All other things being equal, there should be no difference. There's a fixed-size buffer that data gets put into from the hard drive, and it plays that data until it runs out and needs to refill the buffer.

What might actually make a difference is the quality/bitrate of the audio file. A high-quality song would take up more data than a low-quality song, so if it plays a lot of high-quality songs, it'll have to refill the buffer more often. That would increase hard disk usage, which would in turn drain the battery faster.
bingo, lossless uses your battery quicker causes it refreshes the buffer 4-5 times at least during a song, really long songs at low bitrate are all as normal
 

gammamonk

macrumors 6502a
Jun 4, 2004
566
1
Madison, WI
I use mostly Apple lossless on my iPod (3G with a new battery). The run time I get is about half what was advertised on my new battery. (Before the battery, I would only get about 2 hours tops, now I get about 5.)

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