It's a good unit but there is a BIG caveat. The 12 volt input is through the Anderson Powerpole connectors, not the ring-bolt (battery) connectors, which I was kinda expecting. Cables attached to Anderson Powerpole connectors are only 3 feet long. So if you need more wires to get to the battery, you have two options. Either connect the longer wires to the included #10 wires (which the instructions don't recommend), or buy new Powerpole connectors, a special crimping tool ($40), and some #8 orโฆ