Bests & Worsts Reviews from Amazon

Originally I bought a cheaper Battery Pack from another brand. It was very flacky in getting a connection to the battery that would work. And then, when it was cold or the battery completely dead it would not start the car. So after a lot more research, I ordered this one. I have used it several times as we have had severe cold and the battery was defective. As soon as it is connected to the battery, you hear a click, and that is all you need. No button to press or jiggling the connectors. It is ready to go and it works. After starting the car it is hardly depleted at all. After 3 starts it still shows 96% charged. It feels solid and well built. It comes in a nice carrying case for storage in the car. It is easy to charge with any A/C outlet. I am very happy with this item. UPDATE 6/20/18 - Something went wrong with the internal electronics and the unit would not charge. Gooloo did an admirable job of standing behind the product and offering a refund or replacement. They clearly proved to be the kind of company you can trust for doing business with.