depends on the use... normally the battery last really long... i made the test a few months ago, fully charge my iPod and watched movies, it took more than 8 hours to drain the battery to 15%. non stop music took almost 24 hours, usings apps like games and stuff drain the battery faster and using wifi too, using games took me some 6 hours and being on internet browsing, watching videos on YouTube and stuff took some 6-7 hours.
Ipod nanos last about a good 12 hours on a fully charged battery. The time varies depending on how often you stop it from going on continuously.
12hrs
54 hours !
4 hours
When new and fully charged, the battery provides up to 8 or 12 hours of battery life
There is not exact battery life you can download an app but mostly the battery life depends on what you do with it
Yes, the iPod Shuffle does have a battery.
4 hours
1 hours
it last for 1 year or malfunction
2-3 hours
Just plug your ipod into your computer until battery in the top right corner is green! and full.