Hobie has taken the guess work out of installing a fish finder by providing a simple yet complete installation kit. This kit is specifically pieced together to include everything you need for wiring up your fish finder to any Hobie kayak with the“Lowrance Ready feature. Kit Includes: 12V 9AH waterproof gel cell battery and charger, wiring hardware, and battery holder which mounts to the sail post or in the lip of an 8 twist and seal hatch.