KayakingAfter the frequent attempts at Bribery, beatings, and simply getting towed at Sunrise - S-B opens the Kayak Forums
Also see http://www.ultimatekayakfishing.com
FWIW, You might note that that finder ( like allot of Humminbird finders) is rated to run on 10-20VDC. If you start with a 14 -16V battery pack/source, you'll take allot longer to drop below that 10 V threshhold.