Review on Cllena Dual USB Socket Charger with LED Voltmeter and 12V Power Outlet: Four Functions Panel for Car Marine Boat RV Truck Camper (Blue) by Alberto Brewster

I welded the center console for my 84 CJ7. I have a dual battery configuration and the required power connections are powered by the second battery as well as a second voltmeter. That was excellent. I now have a 12V outlet and two USB outlets and a voltmeter showing the second battery because that on the dash only shows the main battery. I left the 12V outlet "hot" the whole time, but connected the USB and voltmeter ports via the included toggle switch. Otherwise they would be constantly hot and draining power even if nothing was plugged into them. That way I can just flip the switch to get a second battery level and/or turn on the USB ports. The rubber covers are also great for the jeep when the top is off and you're suddenly in the shower.