Calculate Device Runtime
Check your power station's specifications for Wh rating
Found on device label or power adapter
Typical range: 80-90% (default 85%)
How Runtime is Calculated
Formula: Runtime (hours) = (Battery Capacity × Efficiency) ÷ Device Wattage
Example: 1000Wh battery × 85% efficiency ÷ 100W device = 8.5 hours
Note: Efficiency accounts for inverter losses (AC conversion). DC devices (USB) have higher efficiency (90-95%).