Associated 3055A 50 Amp Portable Smart Charger

Features and Benefits: Automatic 6/12V on/off switch turns off at full power; will turn on if needed Automatic bad battery detection Designed for lead acid, AGM, and Gel batteries 6' AC cord, and 6' DC leads The new 50 AMP portable smart charger includes a 6/12V on/off switch which automatically stops charging when a battery is fully charged and will turn on again if the battery loses its charge.  The unit will detect if a battery is bad, and is designed for lead acid, AGM and Gel style batteries.