Reply From Concorde Battery re Lifeline Float
"Thank you for your inquiry. The float voltage spec is 13.2 to 13.4 volts at 25°C. This may be lower than other AGM manufacturers, but these specs have been used for many years on Lifeline batterie...
Forum Discussion
Mex,
You're using about the same float voltage(s) as I do on the two Interstate 12V "motive/wheelchair" deep cycle AGM batteries in our RV.
Except ... in my case the batteries say right on their label to float them within the 13.5 volt to 13.8 volt range ... so what I'm doing is in complete agreement with what the manufacturer (for Interstate) says to do.
Perhaps the low calcium grid alloy that Interstate's manufacturer is using is enough different from what Concorde is using so as to cause the difference in the two company recommendations regarding what float voltage to use?? Or perhaps Interstate's manufacturer designed their AGM around typical ~13.8 volt fixed voltage charger output values.
You're using about the same float voltage(s) as I do on the two Interstate 12V "motive/wheelchair" deep cycle AGM batteries in our RV.
Except ... in my case the batteries say right on their label to float them within the 13.5 volt to 13.8 volt range ... so what I'm doing is in complete agreement with what the manufacturer (for Interstate) says to do.
Perhaps the low calcium grid alloy that Interstate's manufacturer is using is enough different from what Concorde is using so as to cause the difference in the two company recommendations regarding what float voltage to use?? Or perhaps Interstate's manufacturer designed their AGM around typical ~13.8 volt fixed voltage charger output values.
