Re: AGM Batteries

Posted by DavidPackard On 2021/9/5 13:05:16

D.O.

Given that so many of us have the combination of an Optima battery with the original charging system I would say that combination is quite acceptable.

The ammeter indicating ‘no charge’ in itself is also not a concern, but it could be a clue, because once the battery is charged that’s the correct meter reading. Your comment about a discharge with the headlights ON, is a clue that the generator output might be compromised . . . perhaps zero output. Check the battery voltage with the car not running, and again running at a high idle. There should be about one volt difference in the two readings (running would be the higher voltage). If you measure no difference between the two readings I would agree with your observation about running the car on batteries only. I’m assuming the car is a 6+ system and the two batteries are connected in parallel.

dp