Description FingerTech JST to 9V Battery Adapter Runs your Viper from a 9V battery The FingerTech JST to 9V Battery Adapter helps you to run your Viper from a 9V battery instead of a lipoly pack. View more What's Included 1 x FingerTech JST to 9V Battery Adapter Specifications Battery: 9 V (Not Included) Interface: JST