This faithfull battery charger is a versatile 8amp 140 watt maximum rated battery charger designed for use with both 6v and 12v lead acid batteries with a capacity of between 9 112ah the charger features a voltage selection switch that can be set to charge either 6 or 12 volt batteries along with an ampere switch to select the desired rate of charge fast or slow the analogue dial provides an accurate readout of the baterys state of charge and may also be used as a battery tester when not conne