- Stanley 15 AMP automatic battery charger - Charges, voltage checks/monitors, Quick start timer countdown and reconditions battery with one simple touch - Automatically selects charge rate from 0 to 15 AMPS to maximize battery life, charge speed and maintenance - Spark resistant reverse hookup protection - Easy to read LCD screen with clear information and feedback - 3 Easy steps to charge, test, recondition or start battery: Connect clamps to terminals, Plug in AC cord to wall outlet or extension cord, Press charge, quick start timer or recondition - Microprocessor controlled digital diagnostics - Automatically compensates for low voltage from extension cord use - 3 Stage high-frequency automatic rapid charge - Automatic temperature compensation