Interactive Engineering Sizing Tool
Solar Generator Battery Runtime Calculator
Real-time sizing engine calibrated against a standard 2,048Wh LiFePO4 battery using an industry-standard 85% inverter conversion efficiency factor.
Quick Load Presets:
Estimated Usable Runtime
9h 40m
Baseline: 2048Wh Battery @ 85% Efficiency (1740.8 Usable Wh)
Formula: (2048Wh × 0.85 efficiency) ÷ 180W = 9.67 hours usable runtime.
How This Calculator Works
Most power station buyers calculate runtime with simple division: Battery Wh ÷ Appliance Watts. However, DC-to-AC conversion incurs continuous electrical conversion losses (heat dissipation in transformers and MOSFETs) and internal controller consumption.
⚡ 85% Efficiency Derating
High-grade Pure Sine Wave inverters typically achieve between 82% and 88% conversion efficiency at medium-to-high loads. A 2,048Wh battery delivers 1,740.8 usable watt-hours.
🔌 Inverter Standby Tare Loss
Even with zero devices drawing power, leaving an AC inverter turned on consumes 15W to 45W continuously to run cooling fans, displays, and high-frequency oscillators.