How long does a small UPS provide battery power for?

Most small office UPS systems will provide a battery support time of 2-5 minutes on their datasheets. The actual runtime provided by a UPS battery is load dependent and so the lower the load the longer the UPS will run for. A 300VA load on a 600VA UPS may give up to 10 minutes in battery runtime. If the UPS has a front panel display the load and battery charge percentage can be displayed. If the UPS is connected to UPS monitoring software, the available runtime (in minutes) may be shown.

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