Portable generators offer a reliable power source during outages and emergencies. These are the best portable generators, according to experts.

2) Use a Transfer Switch: The safest way to use a portable generator for home power backup is to use it in conjunction with a manual transfer switch­–a robust piece of electrical gear.

I’ve had to install both manual and automatic transfer switches for using generators as backup power sources for multi-day power outages. Before running out to buy a portable generator ...

As with a traditional portable generator, an inverter generator ... to your electrical panel with a safety device called a transfer switch, which CR strongly recommends. That allows the ...