PEAK PKC0AF 2.0 Amp 12V Automatic Semi Intelligent Float Battery Charger/Maintainer Switches from charging to float mode battery maintenance automatically; will resume continuous charging when battery becomes discharged Short circuit, reverse polarity, bad battery fault, battery fully charged and power supplied LED indicators Durable plastic and water-resistant housing; Heavy-duty cables and clamps are corrosion resistant Snap disconnect harness quickly connects clamps or ring connection to top or side-mounted hard to reach battery terminals 12 volt DC accessory plug will connect charger to cigarette lighter / accessory outlet