Power station sizing
Build a complete equipment plan and estimate the capacity and output you need.
Portable power calculators
Choose the question you need to answer. Start with sizing for an equipment list, or use a focused tool for runtime, charging, or unit conversion. Each result shows its assumptions.
Battery runtime
Estimate runtime under sustained average AC, USB, and DC loads.
Solar charging time
Estimate equivalent steady-input hours and optional daily energy balance.
Charging cost
Estimate wall energy and electricity cost using your tariff.
Wh to Ah
Convert bidirectionally using nominal battery voltage.