It depends what you use it for if it is on standby around 15hours playing movies around 3 and on the internet around 1.5-2.
12hrs
4 hours
54 hours !
4 hours
There is not exact battery life you can download an app but mostly the battery life depends on what you do with it
1 hours
The iPod Touch will eventually run out of battery when it is locked, but it will not drain instantly.
2-3 hours
No
To replace an iPod touch battery you would have to send it out to Apple inc.
if it is fully charged 7-10 hours
No. However, there are apps that can tell you your iPod's battery life percentage.