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.