Quote Originally Posted by stratos185 View Post
(UpDate) Checked charger output this weekend and all 3 banks putting out 12+ volts which is ok per the instructions supplied
with charger. Battery cables are clean and tight as I use stainless nuts with the plastic inserts to keep them tight. Checked water level last week before going to the lake and water level was OK. Anybody have any more ideas?
Get a Hydrometer and check the acid level of each cell in the batteries. 1 cell that is low/dead will cause this.

AND if you're not good at making sure there is water at the correct level in the batteries, you will cause damage. THE minute the plates are exposed you start damaging them. Even a little exposure will cause serious sulfation

http://en.wikipedia.org/wiki/Lead%E2%80%93acid_battery

Later,

Geo