How long can the Zendure SuperBase V6400 run a Sump pump?
1.9 days
Formula: (6.4kWh × 0.85 inverter efficiency) ÷ 2.88 kWh/day = 1.9 days. At continuous 800 W draw (no duty cycle), about 6.8 hours.
Appliance
Sump pump · 800 W / 2000 W surge
Battery (base)
6.4kWh · 3.8kW / 5kW surge
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Runtime Quick-Check
Runtime Quick-Check
Pick a battery and an appliance — see days of runtime after the 0.85 inverter derate.
1.9 days
Formula: (6438 Wh × 0.85) ÷ 2.88 kWh/day = 1.9 days. Continuous draw ≈ 6.8 hours at full load.
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