Power Station
Calculator

Enter your station's Wh capacity, then add devices below to see exactly what your power station can do.

01 Your Power Station
Battery capacity (check your model's label or spec sheet)
Wh
Model name (optional)
Efficiency (85% is standard)
80% 85% 90% 95%
02 Continuous Loads

Devices that run non-stop — router, TV, fan, lights.
Result = hours of runtime.

Router · 10W Fan · 25W LED · 9W TV 32″ · 50W TV 43″ · 80W NVR · 15W Fridge · 60W Laptop running · 45W
added devices
W
Find wattage on the device label, charger brick, or spec sheet.
03 Chargeable Devices

Phones, laptops, tablets — charged by battery size.
Result = number of full charges.

Samsung A24 Samsung S24 iPhone 15 iPhone 15 Pro Max iPad 10th gen Lenovo 45W laptop Laptop 65W
added devices
Wh
Have mAh? Convert: Wh = mAh × voltage ÷ 1000
(phones = 3.85V · e.g. 5000mAh × 3.85 ÷ 1000 = 19.25 Wh)
04 Results
Fill in your station capacity above and add at least one device to see results.
Formulas: Usable Wh = Station Wh × efficiency  ·  Continuous load: Hours = Usable Wh ÷ Watts  ·  Chargeable device: Charges = Usable Wh ÷ Device Wh
Results are estimates. Actual performance varies with temperature, battery age, and usage patterns.