Review on 🔌 Cllena Dual USB Socket Charger 2.1A&2.1A + LED Voltmeter + 12V Power Outlet + ON-Off Toggle Switch Panel for Car Boat Marine RV Truck Camper Vehicles GPS Mobiles (Blue) by Damion Pasquale

Excellent compact device. So far, so good. The instructions do not clarify the connection diagram, but the picture on Revain and the answers to questions clarify the correct connection. Average silver power (battery), end silver power (+) to (+) on each accessory, bronze ground (-) to (-). I first bought 12 gauge wire but it was too big for the connectors. I ended up getting 16 gauge and it worked. I also used splitters for the 2-1 connections at first (Figure 4), but only got 8 volts. I scrapped that idea and connected both wires to the same jack (pic 2) and the voltage jumped to 13.1 (pic 1). I didn't like the connectors that came with the kit (Figure 5), so I bought new ones (Figure 6). In this installation configuration, the on/off switch controls the entire device.