??? Set Points For Different Battery Types
I'm just learning, with a smidgen of comprehension thrown in, set points for charging batteries. Are the set points the same for ALL AGM batteries, for ALL FLOODED/WET batteries, for ALL GEL batter...
Forum Discussion
A) Mex: You're saying (I think) that the 0.4 difference between Lifelines's recommended float voltage (13.2 volts) and my/any stock converter's fixed output voltage (an average of 13.6 volts) should not (and in your case has not, yet) do harm to a LifeLine AGM battery .... regardless of what their rep told me.
B) That seems strange, as I believe that it's common knowledge that the 13.6 volts applied to a liquid acid battery can indeed boil it to death eventually if one doesn't add H2O periodically ... where the 0.4 volt lower float voltage (13.2 volts) from a multi-stage charger does not boil a LA battery.
The only reason I can think of for the above contradiction between A) and B) is that it must be that the one-way vapor pressure relief valve in Lifeline (and probably most other) AGM batteries DOES NOT/WILL NOT OPEN from the vapor pressure increase that occurs between using a float voltage of only 0.4 volts higher than that recommended at normal ambient storage and camping temperatures ... hence no drying out of the AGM battery happens at that (small?) higher-than-spec float voltage.
All the Lifeline tech had to do was tell me that at the time .... to keep from losing a sale of two of their Group 31 AGMs. I had the money ready to spend (.... although the two Group 31 Fullriver AGMs I bought with a spedified 13.6 volt float cost almost as much as Lifelines).
B) That seems strange, as I believe that it's common knowledge that the 13.6 volts applied to a liquid acid battery can indeed boil it to death eventually if one doesn't add H2O periodically ... where the 0.4 volt lower float voltage (13.2 volts) from a multi-stage charger does not boil a LA battery.
The only reason I can think of for the above contradiction between A) and B) is that it must be that the one-way vapor pressure relief valve in Lifeline (and probably most other) AGM batteries DOES NOT/WILL NOT OPEN from the vapor pressure increase that occurs between using a float voltage of only 0.4 volts higher than that recommended at normal ambient storage and camping temperatures ... hence no drying out of the AGM battery happens at that (small?) higher-than-spec float voltage.
All the Lifeline tech had to do was tell me that at the time .... to keep from losing a sale of two of their Group 31 AGMs. I had the money ready to spend (.... although the two Group 31 Fullriver AGMs I bought with a spedified 13.6 volt float cost almost as much as Lifelines).
