Duracell SLI31SA Group 31 for Chassis/Starting Batteries
Duracell SLI31SA
It appears East Penn (Deka) manufactures these.
I am going to be replacing my 2 Chassis/starting batteries, the last owner put in 2 Costco Group 27 Deep Cycle (around 650cca, not really the right type for starting either) in May of this year 2017 - I'm looking to go to a Group 31 (950cca).
NAPA locally said their Group 31 #7236 with studs is manufactured by Exide which I don't think I want to use though NAPA has the best warranty, they prorate after 18 months to 36 months, it's just not free exchange up to 18 months.
Of course, there is Interstate 31-MHD but the most expensive and the usual 18 month exchange warranty.
Since the Costco are so new (4/2017 date stamp), I'm not giving them up for $25 each Core charge either.
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1995 36' Gulf Stream Scenic Cruiser (Model #8360) on 1995 Spartan EC-2442 Chassis w/Granning Air Ride | Cummins B5.9L 12V 230hp | Allison MD3060 6-Speed WTEC II
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