Meaning of battery-backed | Babel Free

Definitions

1. Of a device, using a battery to maintain operation when not powered by the main electrical supply (e.g. during a blackout).
   not-comparable
2. Using a battery to maintain volatile memory when powered off.
   not-comparable
3. Of saved game data, written to a volatile memory chip in a video game cartridge to maintain the data when not in use.
   not-comparable

CEFR level