Battery and charging
What is a portable power station and which one do you need?
A portable power station is a large battery with an inverter and charge controller in one box: it has 120 V outlets, USB and USB-C ports, and recharges from the wall, a car, or a solar panel. It works as backup during outages without the noise and fumes of a gas generator.
The numbers that matter
Capacity in Wh: how much energy it stores and, therefore, how many hours it lasts. Output in W: how many devices it can power at once. Surge power: what it can handle while a motor starts up.
Battery chemistry: LiFePO4 units are rated for far more cycles than others, which is key if you will use one every day.
Useful features where outages are common
Many can stay plugged into the wall and switch to battery when the power cuts out (UPS or backup mode). Check the switchover time: at a few milliseconds, a PC or router will not restart.
Solar charging lets you add energy during long outages, and fast AC charging refills the battery quickly when power returns.
What to check before you buy
- Size the Wh from the watts of what you want to keep running and the typical outage length where you live.
- For refrigerators, check that both continuous and surge output cover the compressor's startup.
- Choose LiFePO4 if you will use it daily.
Guides to help you choose
Frequently asked questions
Yes, if its output covers the compressor's startup and its capacity lasts the hours you need. A fridge draws power in cycles, so runtime varies with the model and temperature.