I havent used it yet because I dont need to. I read the instructions and everything seemed to function as designed.
I wanted one of the new smaller jump starters to have one in each vehicle and in my barn for small engines. Also for the boat and motorcycles. They are definitely more convenient to haul around than the bigger and heavier jump starters. So far they have worked good.
I ordered 5 items very pleased.
This was a Christmas gift for my niece in case of emergency. A few days later she needed to use it and her car started right up! Needless to say, I'm extremely happy with my purchase.
Very Good product in a small package, will order another and got lots of likes on this product