Highlights:Voltage: 12V2 amp trickle, 10 amp fast charge and 50 amp engine startFull automatic operationSolid-state circutry with silicon diodes for optimum performance Spark-proof protection in automatic mode for added safetyHand held chargerEasy to read color coded impact resistant meter50 amp clamps for top and side mount battery postCarrying handleHeavy gauge steel case with baked enamel finishUL listed