Just found this in the March Sport Fishing magazine, just thought it would make for a good post

http://store.humminbird.com/dyn_prodlist.php?k=307016

What makes it a Kayak Combo?

The kayak combo comes with the GPS/Fishinder unit, a 12v 7amp battery with charger, a dry bag for the battery, a transducer holder and epoxy for mounting in the bottom of the kayak, a marine grease for the medium in between the kayak hull and transducer, a quick disconnect attachment for the head unit and a cover for the head unit.

I bought one of these units and love it so far. The only thing that did not work out well for me was the Marine Grease under the Transducer. I was getting bad readings on depth. I then switched the grease out with Marine goop and carefully installed it to avoid air bubbles.

Ohhh, so that makes it the ice fishing unit with a tube of grease.

Glad they are finally starting to pay some attention to yak fishing though.

BTW: that grease interface actually works pretty good if the transducer is held firmly against the hull. I use a piece of pool noodle jammed under the seat to hold it down. That works so well that I don't use any grease at all. (a thin coat of grease does make for a better couple between the hull and the transducer though)

I have everything exept a small 12v battery. Anyone know what to use here and were I can get one?

Alarm battery from Radio Shack or Bass Pro has some.

Here ya go if ya want to order one.
http://www.lowcostbatteries.com/product_p/a127.htm