TM 10-3930-669-10 1-13.  ELECTRICAL SYSTEM. a. The forklift is equipped with a twenty-four volt, negative-ground, electrical system.  The two top-post, twelve volt batteries  (1)  are  under  the  engine  cover  on  the  RH  side  of  the  forklift  and  are  mounted  in  a  battery  box  (2). Actual amperage is indicated by the ammeter (3) on the instrument panel. b. The MAIN POWER switch (4) disables all electrical circuits with the exception of the ammeter and the battery side of the starter solenoid.  The ammeter will always indicate actual current draw from the batteries. 1-8