AGM Battery Suggestions - Good, Better, Best?
Hi, Any suggestions on 12V AGM Batteries? I'm looking for Good, Better & Best battery choices. Any suggestions would be appreciated. Thanks, Ken
Forum Discussion
We have 12 volt deep cycle Interstate AGM batteries (made by C&D Technologies) in our Class C motorhome. They were originally intended to be "motive power" batteries - batteries for wheel chairs, etc..
They're coming up on 8 years old this fall and all they have seen for charging is the stock converter and the engine alternator.
Right on the battery label it says to float them at 13.5 volts to 13.8 volts - so the stock converter floats them fine.
But .... AGM batteries have lower internal resistance than regular wet cell batteries. What that means is that they charge faster at whatever voltage is used. This explains why our AGM batteries can both be floated and charged - fast enough for us - using the same fixed voltage stock converter.
Other than their long life, what we like most about our AGM batteries is that they require no maintenance and the complete lack of any corrosion around them in the cabinet or on the cables and connectors.
They're coming up on 8 years old this fall and all they have seen for charging is the stock converter and the engine alternator.
Right on the battery label it says to float them at 13.5 volts to 13.8 volts - so the stock converter floats them fine.
But .... AGM batteries have lower internal resistance than regular wet cell batteries. What that means is that they charge faster at whatever voltage is used. This explains why our AGM batteries can both be floated and charged - fast enough for us - using the same fixed voltage stock converter.
Other than their long life, what we like most about our AGM batteries is that they require no maintenance and the complete lack of any corrosion around them in the cabinet or on the cables and connectors.
