Ideal for motorcycles, tractors, or snowmobiles, this one-amp manual charger features reverse hook-up protection, which prevents charging the battery until it is hooked up to the correct posts. It also features a quick-disconnect harness with ring-lug adaptor and the choice of 50amp clamps or attaching the ring connectors directly to the battery. These chargers are ideal for overnight warming of automobile batteries during cold weather. Two set of charging cables with quick disconnect fittings allow the motorcycle charging connections to remain intact while the charger is used elsewhere.