The Hobie Fishfinder Lithium Power / Install Kit has everything you need to install a fish finder into a Hobie kayak with a Lowrance Ready mount. The kit includes a 12V 10 ah Nocqua lithium ion fishfinder battery, a 12V battery charger, a Hobie 12V battery holder, wire connectors and zip ties. The Hobie battery holder can be placed into any Hobie 8 inch twist and seal hatch or attached to the interior mast holder of your Hobie Mirage kayak.