The Osram Battery Charger 901 is an intelligent 1A charger and battery maintenance device for 6V to 12V vehicles such as motorcycles and most smaller vehicles. At the push of a button, a 7-stage charging cycle is initiated for lithium batteries and a 9-stage cycle for lead-acid/AGM batteries. Simply connect it knowing that the charger will charge and maintain your vehicle's battery: it automatically switches to long-term maintenance mode once the battery is fully charged. It features a digital display to simplify the charging process and a variety of safety functions, including reverse polarity protection and short circuit protection.