schauer 12 Volt Electronic Battery Charger Compact design: weighs only 2.5 pounds and ,Ten (10) foot long cord fits in one hand, making it easy to carry and store Fully automatic 900m Adc, amp charger for and 12V dc batteries, just hook it up and walk away Versatile quick-connect feature allows for standard battery clamp connection and ring connection enables user to permanently attach ring connector on vehicle in storage LED's indicate: AC Power Charging, and Float,Designed to last years Automatically switches from Full Charge to Float-Mode Monitoringself-adjustment feature monitors battery condition and adjusts charge rate to prevent battery damage