The MarCum Lithium Shuttle Power Adapter lets you quickly convert your existing sonar system to the MarCum Lithium Shuttle unit. Simply attach the adapter cable to the output power cable on the MarCum Lithium Shuttle, and attach the sonar power terminal cable from your existing sonar system (not included) to the MarCum Lithium Shuttle Power Adapter. Follow the instructions provided in your Lithium Shuttle manual for mounting your system to the base platform, and get fishing. Works with systems with operating ranges between 912.6V. Lets you convert existing sonar system to MarCum Lithium Shuttle unit Fast and easy to use Works with systems with operating ranges between 912.6V Spade-end terminal connections for quick attachment