backup battery

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• Backup battery — A backup battery provides power to a system when the primary source of power is unavailable. Backup batteries range from small single cells to retain clock time and date in computers, up to large battery room facilities that power uninterruptible …   Wikipedia

• backup battery — reserve battery; battery that serves as a substitute or support …   English contemporary dictionary

• Backup (disambiguation) — The term backup has several meanings.* In reference to information technology: ** Backup The concepts behind backing up data to enable recovery from data loss. ** Backup software The software that performs this function. ** List of backup… …   Wikipedia

• battery — /bat euh ree/, n., pl. batteries. 1. Elect. a. Also called galvanic battery, voltaic battery. a combination of two or more cells electrically connected to work together to produce electric energy. b. cell (def. 7a). 2. any large group or series… …   Universalium

• Battery — /bat euh ree/, n. The, a park at the S end of Manhattan, in New York City. Also called Battery Park. * * * Any of a class of devices, consisting of a group of electrochemical cells (see electrochemistry), that convert chemical energy into… …   Universalium

• Battery room — Telecommunications/Computing A battery room is a room in a facility used to house batteries for large scale custom built backup power systems. These batteries are usually wired together for 12, 24, or 48 volt supplies primarily for… …   Wikipedia

• Battery Backup Unit — Eine Battery Backup Unit (BBU, bei manchen Herstellern auch als Battery Backup Module bezeichnet) versorgt akkugestützt den Cache eines RAID Controllers bei einem Stromausfall kurzzeitig mit Energie. Dadurch bleibt der Inhalt des Caches… …   Deutsch Wikipedia

• battery backup —    A battery that provides power in the event of a AC power failure …   IT glossary of terms, acronyms and abbreviations

• Electric vehicle battery — Further information: Rechargeable electricity storage system For the starting, lighting and ignition system battery of an automobile, see Automotive battery. A Mitsubishi i MiEV having its batteries installed in Japan …   Wikipedia

• Nickel–iron battery — specific energy 30[1] −50[2] Wh/kg energy density 30[1] Wh/l specific power …   Wikipedia

• Nickel-iron battery — Batteries EtoW=50 Wh/kg [http://www.mpoweruk.com/specifications/comparisons.pdf mpoweruk.com: Accumulator and battery comparisons (pdf)] ] EtoS= PtoW=100 W/kg CtoDE=65% [http://www.mpoweruk.com/nickel iron.htm Mpower: Nickel Iron Batteries] ,… …   Wikipedia