•Is a trolley, type 60A 12V / 24V manual battery charger or 500A engine starter |•Voltage selection is made by connecting the charging cable to either the 12V or 24V stud|•Current can be varied by a rotary switch on the front panel|•Unit incorporates a reverse polarity light to indicate incorrect connection to the battery Has an engine start button that has to be pressed when the unit is used as a jump starter|•Built in timer is handy for charging at high currents for short periods|•Transformer is protected by an automatic reset thermal circuit breaker|•The Pro Series of chargers were designed in compliance with IEC 335-2-2 has a two year limited warranty against defects in materials and workmanship|•Not Recommended For Sealed Batteries