I have a 02 Mercury XR6 (0T469102) on a Ranger 185 that has performed well. Recently when hooking up the boat for a fishing trip as I was moving the boat by hand out of my shop I pushed the rocker for the trim and I got a clicking sound. My initial thought was a dead battery. The boat had not been ran in a couple of months but I have plugged in the onboard charger to keep them all charged. I connected the charger and the trolling batteries lights lit up but the cranking battery light did not, no green or red. Put a multimeter on the battery and got 13 volts. tightened the nuts on the battery connections and no change. Tested to see if the key would engage the starter and just a clicking sound. I thought it might be a ground but not sure where the ground wire is on the outboard. Hoping someone knows where I should look first. It may be the battery and I believe it is a shade over two years old. All input is appreciated.
David