The Goodall 51-895 provides the fleet mechanic with multiple charging rates at three voltage settings 6, 12 and 24 Volt modes provide support for a wide variety of vehicles. Charge rates are 30 amp, 40 amp, 60 amp and Engine start rates are 160 & 225 amp. A Two hour timer with hold function provides improved charging safety and convenience. Color-coded meters display amperage and voltage during charging. The clamps are coated over jaws to prevent shorting and a handy clamp docking bar is included to prevent tangles and provide better cable routing. Automatic-reset circuit breakers protect against overloads and Heavy-duty transformer and multi-diode rectifier for long life in professional settings.