Balmar Alternator 12V 100A Sgl 1Balmar 6 Series Alternators deliver high output performance in a compact, small case package and is available in all four common mounting configuration. If battery loads are relatively small and your engine is running frequently, the alternators internal regulator may be sufficient to support your electrical needs without external regulation. If your vessel utilizes larger deep cycle battery banks or the engines duty cycle is less frequent (as is the