Now you don't just have to rely on battery power for your Tennis Tutor ball machine with the Tennis Tutor Plus Machine AC/DC Option. Use the AC/DC option to connect to the power source for more freedom to use your ball machine from any location. Give yourself the addition of this AC/DC option, rather than always running off your battery. There is no need for a battery charger with this option, as the machine will charge any time it is plugged in. This option will also allow AC power use with a completely dead battery, so no battery charge is required.