What size UPS do I need?
Find the wattage and runtime a UPS needs to keep your computer or network gear alive through an outage.
How ups / battery backup sizing works
A UPS is sized by the load it carries (watts) and how long it must hold that load (minutes). Add the wattage of everything plugged in — PC, monitor, modem, router — then decide whether you need 5 minutes to save and shut down or 30+ minutes to ride out short outages. More runtime means more battery (watt-hours). Buy a UPS whose watt rating comfortably exceeds your load; running near 100% shortens both runtime and battery life.
UPS Battery Backups we’d actually buy
Ranked by rating & value · prices on Amazon
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