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'.
(..) Quick! Hold onto my tail! -Attaboy, Slink! -Oh! Woody! Woody! Speed up! -Speed up! -The batteries! They're runnin' out! -I can't hold on much longer. -Slink! Hang on! Great! Woody! The rocket! (..)1995 Toy Story
(..) -We're doomed! All right! All right! If I send out the troops, will you all calm down? -Yes! Yes! We promise! -Okay! Save your batteries. Very good, Woody. That's using the old noodle. Sergeant, establish a recon post downstairs. Code Red! -You know what to do. (..)1995 Toy Story