Originally Posted by
Speedy4x4
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.
I think that you should look in to AGM battery design, they have vents and they use acid not water. We agree that fumes can cause corrosion if they escape near a terminal even if the acid is held by the mat quite securely.
I have three wet cell 12 volt batteries and none have or have had terminal
corrosion.
I agree that the AGM batteries are more secure against leaks, but they can leak fumes as that is the byproduct of the charging cycle for one.