This is the absolute best jump box I have owned and I have owned a few over the past 6 years. I have a jeep I dont drive that well the batter dies dead if you dont run it about every 3 days... you have to recharge it and it's a pain in the rear and time consuming. I didnt have much expectations it would charge it as my others do not. This started it like a charm not once but 4 times and still has 80% battery which is so impressive. This is now my go to for all my needs like this. My husband and I are so impressed.