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'.
(..) We call them the walking dead because it takes about a week for the barbs to reach the vital organs. - What is this? - That is an electromagnet, hooked up to a car battery, and it's keeping the shrapnel from entering your heart. That's right. Smile. We met once, you know, (..)2008 Iron Man