"BIG FISH 2006" wrote in message
...
My trolling motor batteries will only last about an hour on medium
speed, they use to go for hours, could a lack of water cause them to
discharge faster? how much water should be in them? should I add water
if needed.

You need to add distilled water or battery electrolyte solution to the
batteries and make sure that the lead cells are completely covered with
water. Even "maintenance free" batteries need to be checked periodically.
I typically check my batteries once a month and top off as needed. The
batteries you have now are quite possibly cooked and won't hold a charge
well any longer and will probably need replacement.
--
Steve @ OutdoorFrontiers
http://www.outdoorfrontiers.com
G & S Guide Service and Custom Rods
http://www.herefishyfishy.com