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  2. Backup battery - Wikipedia

    en.wikipedia.org/wiki/Backup_battery

    Backup batteries range from small single cells to retain clock time and date in computers, up to large battery room facilities that power uninterruptible power supply systems for large data centers. Small backup batteries may be primary cells ; rechargeable backup batteries are kept charged by the prime power supply.

  3. Uninterruptible power supply - Wikipedia

    en.wikipedia.org/wiki/Uninterruptible_power_supply

    A UPS differs from a traditional auxiliary/emergency power system or standby generator in that it will provide near-instantaneous protection from input power interruptions by switching to energy stored in battery packs, supercapacitors or flywheels. The on-battery run-times of most UPSs are relatively short (only a few minutes) but sufficient ...

  4. Emergency power system - Wikipedia

    en.wikipedia.org/wiki/Emergency_power_system

    For a 208 VAC emergency supply system, a central battery system with automatic controls, located in the power station building, is used to avoid long electric supply wires. This central battery system consists of lead-acid battery cell units to make up a 12 or 24 VDC system as well as stand-by cells, each with its own battery charging unit.

  5. Winter storms are hitting the U.S. Here's how to keep your ...

    www.aol.com/lifestyle/stay-safe-warm-winter...

    Winter storms can turn dangerous when they cause power outages and risky road conditions. Preparation can help keep you and your family safe. Winter storms are hitting the U.S.

  6. Tesla Powerwall - Wikipedia

    en.wikipedia.org/wiki/Tesla_Powerwall

    The Tesla Powerwall is a rechargeable lithium-ion battery stationary home energy storage product manufactured by Tesla Energy. The Powerwall stores electricity for solar self-consumption, time of use load shifting, and backup power. [1] [2] The Powerwall was introduced in 2015 as Powerwall 1 with limited production.

  7. Battery room - Wikipedia

    en.wikipedia.org/wiki/Battery_room

    These can be sized for the expected full duration of an interruption, or may be required only to provide power while a standby generator set or other emergency power supply is started. Batteries often used in battery rooms are the flooded lead-acid battery, the valve regulated lead-acid battery or the nickel–cadmium battery. Batteries are ...