The Stanley Lithium Ion Jump Starter is virtually always ready to ‘jump’ a car. The lithium ion technology provides up to 5x battery life, up to 1,000 charges, and holds 80-90 percent of charge after 1 year. Ideal for small vehicles and/or motorcycles, lawn and farm equipment. It’s reverse connection alarm provides audible and visual warning for safety. It’s compact design is up to 60 percent smaller and 40 percent lighter than traditional jumpers. This includes USB power outlet to recharge small electronics.