This little guy saved my ass twice. Batteries died on my Cascadia in optimized idle on 2 separate occasions. Threw this guy on my catwalk, hooked up the quick connect cable I purchased and started it and charged my batteries real quick. Truck started right up. Ended replacing 4 batteries on the truck. Initially bought this to keep up with the batteries on the EPU so I don’t have to idle but when I used optimized idle it was raining. You can’t get it wet. It will short the inverter. I will be getting a box for it. Other than that the remote is great as it communicates with the unit from in the bunk. So if my EPU goes down and the generator doesn’t kick on then I just start it with the remote. Either way it’s a life saver for me.