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Posted: 5/2/2011 1:36:35 PM EDT
[Last Edit: 5/2/2011 1:40:36 PM EDT by kcolg30]
What is an AGM type battery and how can I tell if I got one.

Thanks
Link Posted: 5/2/2011 1:44:51 PM EDT
Absorbed glass mat. A type of valve regulated sealed lead acid. Optima have the patented spiral cells, resulting in cylindrical cells. Most motorcycle batteries are AGM as are those commonly called "gel cells".

They do not slosh when shaken.
Link Posted: 5/2/2011 1:50:18 PM EDT

Originally Posted By Keith_J:
Absorbed glass mat. A type of valve regulated sealed lead acid. Optima have the patented spiral cells, resulting in cylindrical cells. Most motorcycle batteries are AGM as are those commonly called "gel cells".

They do not slosh when shaken.
Thanks for the info. How about car batts. Are they also mostly AGM?

Link Posted: 5/2/2011 1:52:03 PM EDT
AGMs are mostly deep cycle for renewable stuff

You can lay them on their side and all kinds of stuff. They are also more tolerant of the cold.

http://www.atbatt.com/agm-battery.asp?gclid=CMzqvPagyqgCFQxvbAodwU0gpA

Aviator
Link Posted: 5/2/2011 1:52:08 PM EDT
No most car batteries are not.
Link Posted: 5/2/2011 1:52:41 PM EDT
Originally Posted By kcolg30:

Originally Posted By Keith_J:
Absorbed glass mat. A type of valve regulated sealed lead acid. Optima have the patented spiral cells, resulting in cylindrical cells. Most motorcycle batteries are AGM as are those commonly called "gel cells".

They do not slosh when shaken.
Thanks for the info. How about car batts. Are they also mostly AGM?



No... I use AGM batteries for my solar setup. They last longer, and stand up better to repeated deep discharges in my opinion.
Link Posted: 5/2/2011 1:56:52 PM EDT

Originally Posted By kcolg30:

Originally Posted By Keith_J:
Absorbed glass mat. A type of valve regulated sealed lead acid. Optima have the patented spiral cells, resulting in cylindrical cells. Most motorcycle batteries are AGM as are those commonly called "gel cells".

They do not slosh when shaken.
Thanks for the info. How about car batts. Are they also mostly AGM?


Most automotive batteries are flooded cell with recombinant chemistry, this converts the produced hydrogen and oxygen back into water. All AGMs use this technology.

Most motorcycle batteries are AGM.

You can tell the difference from the lack of removable caps on the AGM. And flooded cell types slosh, AGM won't. The glass mat looks like saturated, white cardboard or paper towels. Glass won't react with the electrolyte.
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