Marine Battery Charger: Definition, How to Choose, and Trend Marine & Automotive Battery Charger Automatic Battery Chargers Classic Marine West Marine 30 A Charger w 80 A EngineStart Feature Marine Automatic Battery Charger 50A ,100A , 150A , 200A Imarinex Top 5 Best Marine Battery Chargers (Great Value (2025)). Battery Charger Attwood's Battery Charger is compact and perfect for your bench, garage or shop use. Overcharge, short circuit and reverse polarity protection provides years of worry free use. Provides 2 and 6 amp charge for 12V batteries. 6 amp charge for 6V batteries. Automatically switches to trickle charge mode after battery is fully charged. Dual rated 12 and 6 volt battery charger can be used for all of your marine, automotive, RV and sports applications. LED indicator power on Ammeter indicates charging current 6 foot power cord length 48 inch battery connector leads WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings. ca. gov.