Compaq 204451-002 - UPS T2200 XR Reference Manual page 31

3-6 Compaq Power Products Software Reference Guide
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EBM—The abbreviation for Enhanced Battery Management, a
proprietary, microprocessor-based system for monitoring and managing
UPS batteries, with such features as quick recharging, doubled battery
life, and up to 60 days of advanced warning before the batteries need
replacement. EBM prevents overcharging and accelerated battery aging
when not constantly charging the battery.
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Filter—The UPS component that prevents corruption of system data by
ensuring that transients and high frequency noise are reduced or
eliminated.
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Inverter—The UPS component that converts DC from the UPS battery
to AC for powering the system.
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Charger—This system detects the actual charge state of the battery and
provides a full charge or a float (intermittent) charge, only when
required.
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Run Time—Maximum battery time available to support the system
until inverter shutdown, based on current load and UPS conditions.