iPod Is a jumpy battery normal?

[rye9]

My 2G mini... its battery jumps. I mean like I fully charged it overnight... listened to it for 15 minutes... then it says my battery is dead. So 10 minutes later I turn it on, and the battery is pretty much full.. is this a known issue? And it wasnt a one time thing, it happens like every other day.

 

[mad jew]

Have you tried calibrating the battery? Let it run until you know it is completely flat and cannot start up again. Then charge it up to 100%. This technique helps align the firmware's idea of how much charge the battery can hold with the actual physical amount of charge the battery can hold.

 

[FocusAndEarnIt]

Same thing happened to my 30GB Photo recently. :-\