I have preferred to use the Group 27 battery in Chrysler applications that would readily accept other than a Group 24 battery. Most Chrysler products, back in the day, would accept the larger case battery with no problem. Be aware that the designation 27R for reverse terminals (polarity of terminals in case reversed from Group 27 configuration) is the current Group designation as battery is OE for some Toyotas also and there are other 'R" terminal batteries (that makes stocking batteries costly). Warren Anderson Sedona,AZ . Roger, The group 27 identification identifies size as well as post location. The group 27F is the same battery, BUT the posts are reversed, and there is a flange on the case bottom to accept a hold down bracket, it is used in Ford applications. The 27F will work, but you have to rotate the battery and the posts end up being close to the inner fender and the cables have to be stretched to fit. Not the way to go. Bob _____ From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On Behalf Of Roger Schaaf Sent: Tuesday, April 01, 2008 1:01 AM To: Chrysler300@xxxxxxxxxxxxxxx; Bob Jasinski Subject: Re: [Chrysler300] Battery size? Be certain to be aware of negative and positive post locations. Roger Schaaf ----- Original Message ----- From: Bob Jasinski To: Chrysler300@ <mailto:Chrysler300%40yahoogroups.com> yahoogroups.com Sent: Saturday, March 22, 2008 8:34 AM Subject: RE: [Chrysler300] Battery size? Jeff, Your car came new with a group 27, 12 volt battery that measures approximately 12" L x 6-3/4" W x 9" H to top of post. Any 12 volt group 27 size will fit. The higher the CCA rating, the better for cranking performance. Other factors to consider are appearance, maintenance, cost and availability. Those you have to decide on, there's a lot out there to choose from, it can be as simple as going to your local parts store and getting something that will work fine but not look original, or paying $250.00 for an original looking specimen. Some folks prefer Optima batteries for reduced maintenance. You decide. Bob J From: Chrysler300@ <mailto:Chrysler300%40yahoogroups.com> yahoogroups.com [mailto:Chrysler300@ <mailto:Chrysler300%40yahoogroups.com> yahoogroups.com] On Behalf Of JJ Sent: Friday, March 21, 2008 10:21 PM To: Chrysler300@ <mailto:Chrysler300%40yahoogroups.com> yahoogroups.com Subject: [Chrysler300] Battery size? Hi everybody, What size battery is suggested for a 413 L engine? The battery in it is CCA 525. I was thinking of getting a bigger battery as this old battery doesn't last long using accessories before its dead. The bigger battery I am considering is CCA 600 - would this be better suited with more punch for the mighty 413? I cannot find any info in my Manuel? Cheers Jeff [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: mailto:Chrysler300-digest@xxxxxxxxxxxxxxx mailto:Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/