terrific product,well made,gr8 price,and fast (2day) delivery time...shock!!! this is a gr8 buy at this price

I installed this to charge a second battery used for my snow plow. Easy to follow instructions and it works great. Now I am never in risk of being with out battery power as this unit keeps the two batteries isolated. All I have to remember is to keep a set of jumper cables on hand in the event of a problem, like leaving the lights on, and I can jump start my truck under my own hood.