How long can the Bluetti AC500 + B300S run a Well pump (1 hp)?
17.4 hours
Formula: (3.1kWh × 0.85 inverter efficiency) ÷ 3.6 kWh/day = 17.4 hours. At continuous 1500 W draw (no duty cycle), about 1.7 hours.
What if you add a battery? The AC500 + 2× B300S config jumps to 6.1kWh — roughly 1.5 days on a Well pump (1 hp).
Appliance
Well pump (1 hp) · 1500 W / 4500 W surge · 240V
Battery (base)
3.1kWh · 5kW / 10kW 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.
17.4 hours
Formula: (3072 Wh × 0.85) ÷ 3.6 kWh/day = 17.4 hours. Continuous draw ≈ 1.7 hours at full load.
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