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DiskDoctr's avatar
DiskDoctr
Explorer
Apr 18, 2017

Deka DC31DT battery? Deep Cycle?

"True Deep Cycle" according to local battery dealer. Here's the specs:

Deka DC31DT Marine Deep Cycle Battery (Lead Acid) 12V, 650 CCA


Our batteries from DEKA are made with the highest quality parts and are guaranteed to be compatible with your original vehicle equipment. Built with advanced technology to insure the highest quality standards for reliability, durability and performance.

Increased Service Life
Protection against acid leakage and corrosion
Impact resistant case and cover
Optimum performance in extreme weather conditions
OEM battery compatible
Made in the U.S.A by East Penn Manufacturing
Extra cranking power
225min @ 23Amp, 185@25


I bolded the section to ask about.

IF it is true deep cycle, permitting repeated 50% discharge without harm, then two of these would be 440ah vs two GC2 at 205ah.

I *think* this is the model. It matches the verbal info I got from the dealer. I've bought Group 31 batteries from them many times in the past for diesel equipment. But not sure about his deep cycle batteries.

What do you think, what am I missing? :@

52 Replies

  • 225 minutes at 23 amp hour draw, so about 100 ah per battery, or 50 ah usable.

    I bought four of those from Sam's Club branded as Duracell. Great batteries in my opinion, no complaints here.
  • According to the DATA Sheet
    http://www.eastpennmanufacturing.com/wp-content/uploads/Marine-Master-Spec-Sheet-0194.pdf
    It's 105 amp hr for 20 so it would only be 210 with 2 Batteries.

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