03-04-2022, 12:56 PM
From the Lifeline Technical Manual, the absorbtion charging voltage at 77°F should be 14.3±0.1v for their AGM batteries. You can see how different that number is compared to the graphic above. Often times people think AGM=AGM, Gel=Gel, etc. That is not the case.
As far as getting 18 years from a set of batteries, that is truly amazing and shows how remarkable Gel performance can be when they're charged correctly (and likely they were not deeply discharged often and almost certainly never left deeply discharged for any period of time). I too would replace them with the same after getting 18 years out of the first set.
As far as getting 18 years from a set of batteries, that is truly amazing and shows how remarkable Gel performance can be when they're charged correctly (and likely they were not deeply discharged often and almost certainly never left deeply discharged for any period of time). I too would replace them with the same after getting 18 years out of the first set.
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