How long can the Tesla Powerwall 3 run a Refrigerator?
9.1 dayswell beyond what you asked for
Formula: (13.5kWh × 0.85 inverter efficiency) ÷ 1.26 kWh/day = 9.1 days. At continuous 150 W draw (no duty cycle), about 3.2 days.
Appliance
Refrigerator · 150 W / 800 W surge
Battery (base)
13.5kWh · 11.5kW / 11.5kW surge
Runtime Quick-Check
Runtime Quick-Check
Pick a battery and an appliance — see days of runtime after the 0.85 inverter derate.
9.1 days
Formula: (13500 Wh × 0.85) ÷ 1.26 kWh/day = 9.1 days. Continuous draw ≈ 3.2 days at full load.
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