The Lestronic II battery charger is available in 12-, 24-, 36-, and 48-volt models to help you meet your light duty material handling charging needs. The Lestronic II utilizes ferroresonant technology with a microprocessor-controlled timer to give you longer battery life and extended charger life. This rugged battery charger is fully automatic. Simply connect it to AC power and to the batteries, and it turns on automatically. The controller monitors charge of the batteries and when it determines they are completely charged, automatically turns off the charger. The Lestronic II can charge batteries up to 680 Ampere-Hours at charge rates of up to 75 amps. All models are UL listed.