I have a bad Chassis battery. I'm going to replace both. The '05 Patriot Owners manual says the Chassis batteries are "31P-MHD 950CCA and 195RC". The "P" is for post terminal (it appears), so I guess the previous owner changed the cables from post style to stud style at some point. I have 3/8" stud terminals on all my batteries which I think is a better terminal connection method.
So looking for best pricing, I see the "Interstate" 31-MHD, Group 31T (950 CCA, 195 RC) for $166 each. And Sams Club has "Duracell" brand model 31C for $110 each (with same specs).
I know the Interstate brand is top of the line.
I don't know anything about the Duracell brand (other than the small AAA batteries). Does anyone have experience with Duracell group 31 batteries?
Also, what does the "MHD" stand for. I looked at a bunch of battery type charts and could not find MHD listed.