Bluewater Cruiser Chargers Model 2832A Common Features: Efficient 3-stage charging with low AC draw. Provides and extra boost for engine starting. Compact, corrosion- and water-resistant case. Overload protection. Igntion protected. Reverse polarity protection. Automatic reset. The advanced electronic switching technology lets you charge three banks quickly without the excess weight, long charging cycles and annoying hum of old style chargers. 9" W x 12-1/4" H x 7-1/4" D.