Had to Lower My Solar Float Voltage-Update
Updated 9 July Just a note for folks in a similar situation. My usual procedure in a normal summer here with my set-up with the Eco-Worthy controller (adjustable Absorb and adjustable Float ) is...
Forum Discussion
I'm going with Lifeline's original published recommend float voltage of 13.2 volts instead of unrecorded phone calls with Lifeline that myself and others made.
Based on that approach, I figure that a 0.4 volt difference (13.2 V versus 13.6 V) up to a 0.6 volt difference (13.2 V versus 13.8 V) - all at 77 degrees F - can indeed be significant enough between AGM battery brands to possibly cause more or less H2O evaporation over the years with certain AGM batteries on certain float maintenance programs.
For lack of a better way to say it ... there MUST be some construction and/or material type and/or material purity and/or chemistry differences between AGM battery brands that gives rise to the various recommended float voltages I see in print.
After all, "for years" 13.2 volts was the accepted float voltage for wet cell LA batteries. Why do the various AGM battery brands now have float specs differing from this and differing among themselves ... unless there's some engineering reason for the differences?
Based on that approach, I figure that a 0.4 volt difference (13.2 V versus 13.6 V) up to a 0.6 volt difference (13.2 V versus 13.8 V) - all at 77 degrees F - can indeed be significant enough between AGM battery brands to possibly cause more or less H2O evaporation over the years with certain AGM batteries on certain float maintenance programs.
For lack of a better way to say it ... there MUST be some construction and/or material type and/or material purity and/or chemistry differences between AGM battery brands that gives rise to the various recommended float voltages I see in print.
After all, "for years" 13.2 volts was the accepted float voltage for wet cell LA batteries. Why do the various AGM battery brands now have float specs differing from this and differing among themselves ... unless there's some engineering reason for the differences?
