Optimate TM 320 Battery Charging Unit

Automatically charge, test and maintain 6v or 12v lead acid agm, gel or std starter or deep cycle batteries. Ampmatic charge control adjusts current according to battery size. Small battery gets less, large battery gets more! can save a "dead" battery from as little as 0.5v. No risk of overloading. Completely safe for vehicle electronics. Long battery life maintenance safely. Automatic power off if short circuit or battery is disconnected. Included components: Weatherproof battery cable and small battery clamp set.