battery-backed

Business, Electrical engineering, Electricity, Electromagnetism, Electronics, Energy, Engineering, Natural sciences, Physical sciences, Physics Of a device, using a battery to maintain operation when not powered by the main electrical supply (e.g. during a blackout).

Business, Computing, Electrical engineering, Electricity, Electromagnetism, Electronics, Energy, Engineering, Mathematics, Natural sciences, Physical sciences, Physics, Sciences Using a battery to maintain volatile memory when powered off.

Video games Of saved game data, written to a volatile memory chip in a video game cartridge to maintain the data when not in use.