Power station runtime calculator (with solar)
Pick a station or type its watt-hours, enter what your appliance draws, and see roughly how long it runs, whether it will start, how much solar puts back, and what size you actually need.
Inputs
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Formula: runtime (h) ≈ capacity Wh × 0.85 ÷ load W (0.85 allows for inverter losses). Solar is shown as panel W × sun hours — a best case; real harvest is lower with heat, angle and cloud. Use the label on your appliance (NZ/AU: watts = 230 × amps).
Result
Where to buy
Check current listing in your country
Affiliate links are coming soon. Station specs come from the brand product pages linked in the dropdown note below; prices change, so check the current listing.