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Danny Mckee
Reviewed in the United States on February 25, 2025
My power inverter's builtin battery charger stopped working which was hooked up to a sump pump with a backup battery. And, I was looking for a solution instead of buying another expensive power inverter with builtin battery charger and automatic transfer switch. This device was the answer! I was very confused what/where to connect. But, I got a pretty good idea after watching some YouTube videos. Actually, it is a simple and straightforward DIY project once you figure it out. You will need three extension cords and two pieces of wire to make work if you want to set up the same backup system as mine. #1 connects to the grid power. #2 connects to the backup power (power inverter in my case). #3 connects the device you want to power up (sump pump in my case). You just leave out neutral wires (green) and you will need to connect live to live and neutral to neutral for the bottom sockets.
Taylor Gibson
Reviewed in the United States on February 25, 2025
Great deal for the money. Works as designed. My application wasn't business critical so it was perfect. Using it to switch my WiFi router from 110V AC grid power to 110V AC using a battery powered inverter so if the router happens to reboot during the process, not a big deal....it's back up in 5 minutes.
Elliot Wright
Reviewed in the United States on February 25, 2025
The switch is somewhat big and heavy, but well build. The included instructions were for another model, but it's easy enough to figure it out. It works perfectly fine, and the auto-manual option is very useful. I got it set up in a few minutes. The switchover time is about one second. Would definitely recommend to anyone in need of an auto transfer switch.
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