Booster Battery (For Engine Start)
Booster battery must be connected with negative lead to negative terminal of battery and positive lead to positive terminal of battery. DO NOT reverse battery leads.
Bosch alternators are conventional three-phase, self-rectifying type alternators. Nine rectifier diodes are connected to the stator windings (three to each phase lead). The diodes change the alternator A.C. voltages to D.C. voltages coming out of the "B+" and the "D +" terminals of the alternator.