I purchased this unit for my new truck so I didn't need to un-install the inverter from my other truck. I am running this unit off of two six volt golf cart batteries run in sequence to get 12 volts. I have the batteries charging from my main battery with a constant duty silonoid between them. I installed the remote switch for it and I love this set up. I can leave my inverter on overnight and even though it will drain the golf cart batteries, it does not affect my main truck battery. I can even run my Linc..
I purchased this for my work truck. A co-worker also has one on his. They work great. So far we have had no problems with them. I ran 25 feet of two gauge wiring from battery to inverter. I ran about 5 feet of two gauge for ground. Our truck's are diesels and have two batteries. My co-worker left his on the other night and it ran the batteries dead. The load adjust function seams to work, but not real good when set to the least sensitive setting.