How long can the Bluetti FridgePower run a Sump pump?

14.3 hours

Formula: (2kWh × 0.85 inverter efficiency) ÷ 2.88 kWh/day = 14.3 hours. At continuous 800 W draw (no duty cycle), about 2.1 hours.

What if you add a battery? The + BlueCell 200 config jumps to 4kWh — roughly 1.2 days on a Sump pump.

Appliance

Sump pump · 800 W / 2000 W surge

Battery (base)

2kWh · 1.8kW / 3.6kW surge

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Runtime Quick-Check

Pick a battery and an appliance — see days of runtime after the 0.85 inverter derate.

BatteryApplianceQuantity

14.3 hours

Formula: (2016 Wh × 0.85) ÷ 2.88 kWh/day = 14.3 hours. Continuous draw ≈ 2.1 hours at full load.

Running more than one device?