Booster Battery (For Engine Start)

Booster battery must be connected with negative lead to negative terminal and positive lead to positive terminal. DO NOT reverse battery leads.

Marelli alternators are conventional three-phase, self-rectifying type alternators. Six silicone rectifier diodes are connected to form a full-wave, three phase rectifying bridge. The three negative rectifier diodes are pressed directly in the end frame. Three positive diodes are located in a heat sink which is insulated from the end frame. The 60 amp. alternator models also have three energizing diodes pressed into a support assembly.