How long can the Tesla Powerwall 3 run a Chest freezer?
13.3 dayswell beyond what you asked for
Formula: (13.5kWh × 0.85 inverter efficiency) ÷ 0.86 kWh/day = 13.3 days. At continuous 120 W draw (no duty cycle), about 4 days.
Appliance
Chest freezer · 120 W / 600 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.
13.3 days
Formula: (13500 Wh × 0.85) ÷ 0.86 kWh/day = 13.3 days. Continuous draw ≈ 4 days at full load.
Nearest alternatives
Running more than one device?
Open sizing wizard