Why does my iPod nano lose battery so quick?
I charge my nano until it's fully charged but it runs out of battery about 2 hours later.
Repair information for the 6th generation iPod nano. Released in September of 2010. Model Number: A1366.
It does sound like your battery is ready to be replaced. Follow this guide to show you how to get to the battery. It is a bit of a PITA due to the size of the Nano. Of course, before you take it apart, you could also give this a try. the battery is available at places like this. I hope this helps, good luck.