How long can the Zendure SuperBase V6400 run a Router + modem?
11.4 dayswell beyond what you asked for
Formula: (6.4kWh × 0.85 inverter efficiency) ÷ 0.48 kWh/day = 11.4 days. At continuous 20 W draw (no duty cycle), about 11.4 days.
Appliance
Router + modem · 20 W / 20 W surge
Battery (base)
6.4kWh · 3.8kW / 5kW surge
Some links may be affiliate links. GridMatch may earn a commission if you buy through them, at no extra cost to you.
Runtime Quick-Check
Runtime Quick-Check
Pick a battery and an appliance — see days of runtime after the 0.85 inverter derate.
11.4 days
Formula: (6438 Wh × 0.85) ÷ 0.48 kWh/day = 11.4 days. Continuous draw ≈ 11.4 days at full load.
Nearest alternatives
Running more than one device?
Open sizing wizard