Seadoo Aux Battery Support Kit ST3 Hull 295100991

Secondary Battery harness Kit Allows you to add a second unit to your dual battery setup.
Will give you the extra juice you'll need to power electrical components like the BRP Audio-Premium System or Garmin Echomap Plus 62 cv Fish Finder for longer periods.
Kit includes necessary wiring and battery holder.
Additional battery sold separately. 

RXT, RXT-X, GTX and WAKE PRO (2018 and up) / FISH PRO (2019 and up)