I keep one in my truck, F250 diesel, and one in my wife’s daily driver truck. Both have been good products, just recharge after use or every couple of months if not used and buy one with more than enough cranking amps.
For diesel trucks, make sure to order the unit with well more than enough cold cranking amps, the 4250 amp works well and provides more than one use if needed. A larger amp unit will start smaller engines, but not vice versa.
