I have a Sears Diehard 750 and like it. Same thing I have jumped the lawn tractor and quad, and a friends car. The thing seems to hold a charge forever. I just went deer hunting for 10 days. I threw it behind the seat of my truck, just in case. It had been sitting all summer in the garage so I figured it would be low. When I went to charge it up it was still at max charge. I think you could probably jump several vehicles with one charge. Anyway I am happy with mine. About $45.00.