Well Dan, you may not be out of the lead acid business just yet. Based on my research, that battery is an Absorbed Glass Mat ( AGM) battery. It is a lead acid battery, but instead of having a flooded cell jar, the acid is immobilized in the fiberglass mat material between the plates. The case is sealed with a pressure relief valve, and never vents unless the charge voltage gets too high, or the valve fails. The Optima is similar but has a jellyroll style round cell. The lead plates are a proprietary alloy that finish out the package. These are nice batteries, but are not as forgiving as conventional flooded batteries, and they don't take heat as well. You will, however, never water it. Take care of it and use a battery maintainer on it made for AGM batteries to get your money's worth out of it. Bob J (worked for both Exide and GNB battery during AGM development) From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On Behalf Of 'Dave Geise' daverg1@xxxxxxxxxxx [Chrysler300] Hi to all, Just replaced the battery in my 57C with one from Antique Auto Battery in Ohio. Original appearance Willard case and maintenance free. $280 and worth every $ to finally be out of the lead/acid business. Best Regards Dave Geise NJ __._,_.___ Posted by: "Bob Jasinski" <rpjasin@xxxxxxxxxxx> To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to https://groups.yahoo.com/neo/groups/all/manage/edit For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang __,_._,___ |