Battery Systems BMW E36, E46, E31 (850i), E38 750iL
ead and Lead Dioxide (or Lead Oxide) separated by insulators. These alternating plates are connected in series to produce a voltage of 12.6 volts, or about 2.1 volts for each set of Lead and Lead Dioxide plates. The negative terminal is connected to a Lead Dioxide plate and the positive terminal to a Lead plate. The plates are covered with electrolyte which is a solution of 35% Sulfuric acid and 65% Water. Purpose of the Automotive Battery The ba…




