How long can the Goal Zero Yeti Pro 4000 run a Chest freezer?
3.9 days
Formula: (4kWh × 0.85 inverter efficiency) ÷ 0.86 kWh/day = 3.9 days. At continuous 120 W draw (no duty cycle), about 1.2 days.
Appliance
Chest freezer · 120 W / 600 W surge
Battery (base)
4kWh · 3.6kW / 7.2kW surge
Runtime Quick-Check
Runtime Quick-Check
Pick a battery and an appliance — see days of runtime after the 0.85 inverter derate.
3.9 days
Formula: (3993 Wh × 0.85) ÷ 0.86 kWh/day = 3.9 days. Continuous draw ≈ 1.2 days at full load.
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