CTEK Multi US 3300
56-158 CTEK Multi US 3300 Battery Charger. Compact and light weight, this battery charger does it all. Chargers all lead-acid batteries and includes a 4 step pulse maintenance charge to increase battery life and give superb performance. This little battery charge is so powerful that it will even charge completely dead batteries. Perfect for storing your Corvette. Add the cigarette plug adapter for easy one step use.