Battery dies way too quickly?

[ChevyGal]

I have a Gigabeat F40. Things were running fine, then I installed Rockbox back in January. When I pulled it from the cradle, the battery life went from full to dead in less than 2 minutes. I played with it a bit, and it didn't solve it. I thought well maybe the battery came to the end of it's life and kept using the player at home where it could be plugged in. I finally got tired of this and wanted to be able to use it in the car again so I bought a new battery and installed it thinking it would solve the issue. I charged it overnight, turned it on and it ran. I pulled it from the cradle, and within 2 minutes the battery was dead. What is causing this to happen? Anyone have any idea? I am stumped. Thanks.

I think I determined it's not the battery. I was playing around with the player and got an error. I laid it down and went to get the instruction book, but got distracted. When I finally got back to it, over an hour later, it was still on. I fixed the issue, turned it off then back on. Within a minute the battery was telling me it was dead again. Sounds like there's something crossed up in the software? But what?

[markun]

It sounds like something is wrong with the voltage reading. I don't know how to fix this in hardware. You could modify rockbox to ignore the battery voltage, but then the player will just crash when the battery gets really low I think.

[ChevyGal]

That's what I was thinking. I think I am going to try to just start over again software wise. It doesn't work now, so if I screw it up, well I still have a paperweight.