I thought it automatically turns wifi off when locked

[Androidfan1x]

But it does not , I left wifi on and locked it then an hour later the battery went down a lot

[Gav2k]

Originally Posted by Androidfan1x

But it does not , I left wifi on and locked it then an hour later the battery went down a lot

Is there an app using data?

[mohsy90]

Unless you have some app thats using heavy amount of data, then your ipod should not be draining its battery so quick.

[Rockoar]

Which iPod touch are you using? Because I have a 2g (yep, there still are people using them ) and with the last software it supports (can't remember which one is it) if you let the Wi-fi on it will consume your battery in no time. This didn't happen so quickly with previous iOS versions but I guess is the Apple way to tell you to upgrade, lol. Jokes aside, I think its quite normal for older devices, but not so sure how standard it is for newer ones.