
This jump starter has one major drawback. The manual says you have 30 seconds after connecting before it automatically disconnects itself, but I bought two of these and both only gave me between 7 and 8 seconds to attempt to start my car. Needless to say 7 to 8 seconds is not long enough to walk around to the drivers door, get in get in and attempt to start it. This is a major flaw! Nearly impossible for one person to use successfully!