thought someone might be able to shed some light on an alternator issue.
Have a Motorola 55 amp directly connected to 2 paralleled 198 amp hour AGM batteries. Batteries were at 60%. Ran engine for about 6 hours on a calm day. Got back to dock, batteries still at 60%. Put on charger, batts fully charged in 2 hours. Strange ting, batt monitor and gauge showed 13.5 volts, or somewhere around there. Don't understand why batts did not charge. Can anyone shed some light?
Troubador, 1995 C36 MKII #1433, SR/WK
Kinsale Harbor Marina