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Subject: Re: Ipod battery status with rockbox

Re: Ipod battery status with rockbox

From: Mark Allums <>
Date: Fri, 28 Mar 2008 19:07:57 -0500

Ed Nickl wrote:
> Hi.
> Running a 5.5G Ipod video with a current build of rockbox. Just
> after boot up the battery reading is lower then it should be
> sometimes 20% lower and then after a minute or 2 it jumps up to
> where it's suppose to be. Any reason for why this is?
> Was it cold when you first turned it on? The battery will show more
> voltage when warmed up.

With lithium ion batteries, this shouldn't happen too much. This will
happen especially with zinc carbon and alkaline batteries, or lead acid,
like a car battery, but the lithium batteries are good to about -20C. I
would think that warming up from room temp (about 60-70 degrees F) to
operating temp (about 80-100 degrees F) wouldn't cause that much

Just speculating.

--MArk Allums
Received on 2008-03-29

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