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'.
(..) The first person that comes out of this door gets a lead salad! Understand? Get away! Stay away! I ran until my muscles burned and my veins pumped battery acid. What the fuck are you doing? Running around in your underpants! You look crazy! No. I'm onto you. I know what's going on here. (..)1999 Fight Club