Originally Posted by
onehundred80
I'm not too sure about the lack of terminal corrosion, it is caused mostly by acidic vapours leaking up a very fine gape between the terminal and the plastic case. It does not happen so much these days as when the batteries had cases made from pitch.
Absorbed Glass Matt batteries have fiberglass matte between the plates instead of water, so they can be sealed batteries and do not need to be vented, thus do not have the vapors like a standard flooded battery has.
I have 6 agm batteries in use atm and all the terminals are perfect, when my wife got her new dodge was 1 year and there was corosion on the terminals, before I changed it out.
How are the terminals on your lawn mower, I even have a agm battery in my ztr mower, and no corrosion.
Yes loose posts will definitely accelerate and add alot of corosion fast, but the corosion caused by electrolysis is a by product of all batteries but the biggest problem of standard flooded batteries is the leaking and sweating which builds on the terminals.
There are several things that can cause corrosion a bad post is only one, but just saying a agm battery solves most problems and far less chance for corrosion.
Do you want me to go out and take pics of all the terminals I have??
Some have had there agm batteries in for years and terminals are clean.