All inboard propulsion engines are fitted with an alternator as standard. The charge current is restricted to maintain a trickle charge for the starter battery and is not powerful enough to charge a service battery. The Mastervolt alternator in combination with the Alpha Pro 3-step regulator is designed to give a real charge to the house, radio or bowprop batteries, regardless of the technology (gel, wet or traction) of the battery. Multiple bank charging can be done without problems as the Alpha Pro regulator allows you to adjust all voltage settings that are required. Now the batteries can be charged quickly and completely even at low engine speed.

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