We also look for protective features such as port covers to keep out harmful dust and moisture.
Anything heavier than that can be hard to load and unload from a car or to carry around a house in a blackout.
We set a weight limit of 50 pounds, a heft that one (strong) person or two people can reasonably carry. Maximum weight of 50 pounds: Most portable power stations are too big and heavy for the average person to carry them for long distances on foot.Output rating of at least 200 W: Lower outputs are fine for charging phones and other small electronics, but you need 200 W or more to charge a few devices at a time, especially if one is a high-powered device like a laptop.Battery capacity of at least 300 Wh: A watt-hour (Wh) is literally the measure of watts per hour, so a battery with a 300 Wh capacity can run a 300 W device for one hour.This allows them to safely run appliances with a powerful motor or critical devices such as a CPAP machine. Pure sine-wave inverter: We require each model to utilize a pure sine-wave (PSW) inverter, which produces electrical waveforms as clear and smooth as those of the AC power coming out of any wall outlet.
