Originally Posted by antibo12
. I did not go with AGM due partly to the cost, but also because I understand that they also vent fumes (from the side) so I would still have to have a vented box. I will provide information on how this works out if I do not die from fumes or explosion.
There are other reasons AGM batteries are a good choice over wet cell types.
Off gassing can happen in extreme cases but is almost non existent with a normal operating AGM.
They charge faster which is a huge advantage with a solar setup.
They aren't as prone to heat like wet cell types with regard to water levels. You do nothing to keep water levels up.
They handle vibration much better.
Most can be put in almost any angle except upside down.
They hold static charge for a month, no need to charge if there is no draw.
You'll probably be able to take down a good deep cycle wet cell battery to a lower DOD (depth of discharge) than an AGM but the hassle of dealing with them? I'm glad I switched. But cost is a factor. My problem was with wet cell batteries was I did a poor job maintaining them. I found the AGM's actually saved me money in the end. YMMV.