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Dual rate charger with battery boost. Designed to charge or start an engine with a low battery. 50 AMP engine start - for emergency starting. 10 AMP fast charge for everyday needs - charges in 3 to 5 hours. 2 AMP trickle rate - charges a small 12 volt battery in 2 to 12 hours. By Schumacher. CLICK HERE for more information and price |