And there's even a backup BATTERY
when the power goes out.
The Big Bang Theory Season 6, Episode 21
trickle-charge the BATTERY.
Breaking Bad Season 2, Episode 9
A BATTERY is a galvanic cell.
Breaking Bad Season 2, Episode 9
Roaming drains the BATTERY.
All right.
Breaking Bad Season 2, Episode 9
A little mercury switch,
9-volt BATTERY,
Breaking Bad Season 2, Episode 10