Battery Usage Calculator

Calculate Battery Runtime for your portable power system

Use our battery usage calculator below to calculate how many hours of run time you will get out of a portable power system.

Fill in the capacity of the power system in Watt-hours and the power of the appliances you want to use (in Watts).

In case you don’t know the power of your appliances you can use averages. We have added a list of generally used appliances and their average Wattages.

Appliances and their average Wattages

Refrigerator (mini-fridge): 85W

Refrigerator (full-sized): 600W

Laptop: 65W

Tablet: 20W

Smartphone Charger: 10W

LED Lights: 10W

Fans: 80W

CPAP Machine: 45W

Microwave: 1500W

Coffee Maker: 1200W

Television (LED, 40″-50″): 95W

Electric Grill: 1500W

Blender: 400W

Portable Heater: 1300W

Power Tools (drills, saws): 1000W

Camera Charger: 10W

Drone Charger: 50W

Electric Cooler: 80W

Air Purifier: 40W

Wi-Fi Router: 10W

Camping Gear (electric stove): 1000W

Camping Lantern: 10W

Gaming Console: 170W

Electric Kettle: 1500W

Hair Dryer: 1500W

Portable Air Conditioner: 1200W

Slow Cooker: 200W

Sump Pump (1/2 hp): 1500W

Fill in “0” if you want to use less than 10 appliances in the battery usage calculator:

Calculate your Needed Capacity (Wh) for your portable power system.

Calculate what capacity the battery of your portable power system should have to fulfill your needs.

Fill in the power in Watts of the appliances you want to use. It can help you choose the right portable power system for you.