The Premium Fast Battery Charger performs all the functions of the original fast charger with 3 times the speed. The machine will be ready for play in 1 3 hours. The trickle charge feature guarantees you'll never overcharge your battery. This option must be factory installed. Existing owners may ship their machines in for an upgrade. Warranty Battery Ball Machines Accessories One year warranty on parts and labor unless misused, neglected or altered on machines. Six month warranty on battery, accessories and parts. To order the Elite Tennis Ball Machine, click here . To order the Elite 2 Tennis Ball Machine, click here . To order the Elite 3 Tennis Ball Machine, click here .