a 'dead battery' = ('Brit') a 'flat battery' [=a battery that has no more electricity]
The operation was performed by a 'battery' of doctors.
He was found guilty of 'battery'.
(..) I just closed. I think you have a package for me in there? Could it wait until tomorrow? It has fresh clothes and food, and batteries I need. Okay. If you'll have a drink with me later. Sure. There you go, good-looking. Thanks. (..)2014 Wild