Free calculators for planning portable and backup power. Each tool shows its working, so you can see exactly where the answer comes from. More tools are added every week.
Sizing and runtime
Power Station Size CalculatorAdd your devices and hours of use to get the capacity (Wh) and output (W) you need.Open calculator →
Battery Runtime CalculatorEstimate how long a power station or 12V battery will run any device.Open calculator →
Solar
Coming soon
Coming soonGenerator vs Power Station CostCompare the true cost of gas and battery backup over 5 years.
Coming soonRV & Van Solar PlannerPlan batteries, panels and charge controller for a camper.
Coming soon“Can It Run It?” CheckerPick a power station and an appliance and get a straight answer.
Not sure where to start?
Begin with the power station size calculator. It tells you the battery size you need, then links you to the solar calculator to plan charging.