I did some mild wheeling last weekend and brought this along to air my tires back up after airing down for the trail. It aired the tires up quickly and having the jumpers proved to be handy when I found my battery had run down after not driving it for a couple of weeks. I leave it plugged into the Socket to recharge as I drive. It hasn't failed me yet... Highly recommend this over other jumpers because of the quick air and the handy inverter/outlets. It's like the swiss army knife of starters.