C-CHARGER 5000 Series Marine Electronic Battery Chargers are the best choice for high-performance Marine UL listed products. Utilizing high-quality components and corrosion-resistant, anodized aluminum housing, C-CHARGER are built to last, performing in the toughest of marine environments.Marine UL listing ensures durability and safetyOnly complete line of battery chargers approved by Marine UL's stringent specifications, testing and evaluation Tested for durability against static, impact, vibration and shockDC ammeter indicates the charge rateIgnition protected (USCG-33 CFR 183.410)AC and DC fuse protectionMulti-step charging with temperature compensationRestores up to 3 individual battery banks simultaneouslyInternal temperature compensation automatically adjusts output to precisely charge batteries according to ambient conditions Corrosion resistant housing and componentsConstructed of tough, anodized aluminum housing that stands up to the elements-including extreme heat, humidity