Calculator directory
Power Station Runtime Calculators
Choose the calculator that matches the device you need to run. Each tool keeps battery capacity, usable energy, continuous output, and startup requirements separate so the estimate is easier to verify.
General planning
Start here when you have several appliances or already know the watts for your load.
Outage essentials
Calculators for common home backup loads where battery capacity, continuous output, and surge all matter.
Refrigerator Runtime Calculator
Use EnergyGuide kWh/year, running watts, and startup surge to estimate refrigerator backup runtime.
Open calculatorFreezer Runtime Calculator
Estimate chest or upright freezer runtime and separate compressor startup from long-term energy use.
Open calculatorSump Pump Runtime Calculator
Model pump runtime from running watts, duty cycle, continuous output, and startup surge.
Open calculatorWell Pump Runtime Calculator
Plan well pump backup from voltage, amps or watts, pump runtime, and startup requirements.
Open calculatorAir Conditioner Runtime Calculator
Estimate battery runtime or required capacity for window, portable, and inverter-style AC loads.
Open calculatorConnectivity, medical-adjacent, and travel loads
Use these when the device has a specific operating profile or manufacturer power data.
Starlink Runtime Calculator
Estimate portable power station runtime for Starlink Mini, Standard, and Performance hardware.
Open calculatorCPAP Runtime Calculator
Electrical runtime planning for CPAP devices without collecting medical settings or personal data.
Open calculatorPortable 12V Fridge Runtime Calculator
Calculate camping fridge runtime using Wh/day, Ah/day, duty cycle, and DC efficiency assumptions.
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