Advanced Wiring Type

This is the advanced wiring. It connects to the battery, to the inverter, and then has two additional plugs - one for the charger, and presumably a second you would use if you had a second inverter. (Note that they did sell this as a two inverter solution as well) Part of me wonders if they didn't somehow include the wrong wiring, or if the original owner originally bought the two inverter option, then bought an extra bag and battery to turn it into two.