battery backup
noun1
A battery installed in an electrical device to maintain power to the device during a power outage.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
noun
A battery installed in an electrical device to maintain power to the device during a power outage.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
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