BATTERY QUESTION...
Our pair of 8D battery hybrid start batteries are acting awfully funny...@ 6-1/2 years in service.
A week ago I noticed the cooling fan running on their 4 stage charger. No load or drain on them - when I checked the batteries they were warm and tops were wet with electrolyte. Their level was covering the plates fine and far from full. I checked all cell hydrometer readings and were top of the green showing full charge. They spin the starter just fine. I disconnected the charger and they've been sitting static for a week now. They were maintaining 12.7V for a few days & are now at 12.5V. No charging for a week. Spins the starter w/o hesitation. Will activate charger when voltage goes lower - NAPA is running a 10% MD sale on them but didn't want to replace them if not needed. Comments appreciated...