Schumacher's 100a international, fully automatic battery charger/power supply is designed for regular automotive, lead-acid, calcium, AGM, start-stop, and gel cell batteries. Maintains stable voltage under varying loads during major vehicle ECU reprogramming and diagnostic work. Voltage can be set between 13.0-14.8v, And includes a digital volts and amps display. Microprocessor-Controlled, with a manual mode with digital timer. Includes extended reach output cables, and adjustable mounting brackets for easy permanent installation to most shop vehicle lifts. Also features dual temperature-controlled cooling fans.