12V adapter for your lithium jump starter. Designed to provide 12V output capability to power accessories and allow the jump starter to be used as a memory saver. Connects to 12V/10A output pin on the side of the jump starter. Included with Models JNC318 and ES580. Optional accessory for Models JNC311 and ES400. Note: when using any jump starter as a vehicle memory saver, care must be taken to secure both battery cables when the vehicle’s primary starting battery is removed. Failure to do so could result in property damage and/or personal injury.