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Internet # 205309650

Model # 31MDC

Store SKU # 1000053151

$109.00
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  • Provides long and continuous operation
  • Perfect for motors, live wells, fish finders and inverters
  • Battery can be easily recharged for optimal use
  • View More Details

Free & Easy Returns In Store or Online

Return this item within 90 days of purchase.

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Product Details

About This Product

Exide Nautilus Marine / RV Deep Cycle batteries are designed to provide continuous operating time to run trolling motors, live wells, inverters, depth/fish finders, etc. They can be discharged and recharged many times without damaging the internal components of the battery. Incorporates thicker grids, denser active materials on the plates and alloys specifically designed to provide many cycles. Lead/antimony construction provides the proper combination of alloy composition and active material for cycling. Stainless steel threaded and SAE posts provide ease of installation and permit uncluttered wiring harness for electrical connections.

Highlights

  • 725 cold cranking amps at 0°F
  • 900 cranking amps or marine cranking amps at 32°F
  • 205 minutes reserve capacity at 25 Amp
  • 115 Amp at 20 hour (115 Ah) - reference rating
  • 12-month free warranty
  • Return Policy
  • California residents
     see Prop 65 WARNINGS

Product Information

Internet # 205309650

Model # 31MDC

Store SKU # 1000053151

Additional Resources

Shop All Nautilus
From the Manufacturer

Specifications

Details

Battery Size

6-cell

Group size (BCI)

31

Number in Package

1

Returnable

90-Day

Vehicle Type

Marine, RV

Voltage (V)

12

Questions & Answers

Do I have to add distilled water to this battery
ByJun 16, 2026
0 Answer | 
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Hello Can this battery be used for a minn kota 55lb thrust trolling motor.
ByJun 11, 2026
0 Answer | 
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Can it be used to crank my 115 hp motor??
ByMay 28, 2026
0 Answer | 
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Would this battery work in a 5th wheel trailer
ByApr 7, 2026
0 Answer | 
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What are the dimensions?
ByJan 4, 2026
0 Answer | 
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battery weight
BySep 14, 2025
1 Answer | 
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heavy as heck

By|Sep 19, 2025


    Can this battery be used for solar?
    BySep 10, 2025
    0 Answer | 
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    will this start a rv with a diesel engine
    ByAug 31, 2025
    0 Answer | 
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    Viewing 1-8 of 136

    Customer Reviews

    4.2 out of 5

    • 4.2 out of 61 reviews
    • 91% recommend this product
    Filter by:
    Showing 1-10 of 61 reviews
    Doesn't fit into my Newport Vessels Battery Box
    I bought this battery to go into my Newport Vessels battery box, but sadly it doesn't fit. The battery goes in easily but because the terminals are centered on the battery and not to a side like other batteries the cover of the box doesn't fit. I really wished it had work, this is the cheapest Group 31 battery I found with great reviews.
    by
      5 found this review helpful
      This customer chose to rate the product and not provide text.
      by
      • Verified Purchase
      This customer chose to rate the product and not provide text.
      by
      • Verified Purchase
      This customer chose to rate the product and not provide text.
      by
      • Verified Purchase
      I'm sure this is a solid company but my purchase happened to be a BAD ITEM. One cell on the negative side was defective. Home Depot was notified about the problem and is working to resolve a REFUND. We don't live in a perfect world and I understand manufacturing issues can arise from time to time. Looking forward to a NEW REPLACEMENT so things can get back to NORMAL OPERATIONS.
      by
      • Verified Purchase
      I bought the battery for my 6115 John Deere tractor. Its physical dimensions are the same as the original battery that came with the tractor and it ‘s cheeper that the JD battery. It works well on the tractor and fits perfectly in the battery compartment. It supplies plenty of power to easily turn over the engine and start the tractor. One huge advantage is the battery posts are in the center at each end of the battery making easy to attach the battery cables. it is very adaptable for usage in several different battery installations. The center posts make it easy to attach the battery cables because the battery can be installed with the positive post on the right or left depending on the requirement.
      by
      • Verified Purchase
      The battery leaked. Returned it. Went to other retailer and got the same battery for $70 cheaper
      by
      • Verified Purchase
      1 found this review helpful
      Strong long lasting battery. A lot of juice....
      Strong long lasting battery. A lot of juice.
      by
      • Verified Purchase
      Worst battery I ever bought
      I have bought marine deep cycle batteries for 40 years and this battery is the worst. It is returnable within 90 days and this battery would not hold a charge after 13 months. While fishing it won't last 4 hours on 12 volt 55lb. trolling motor.
      by
        1 found this review helpful
        The battery in the store is a lower rating than...
        The battery in the store is a lower rating than what is pictured on the website 840 v 900 mca 105 v 115 ah paying the same for less battery!
        by
        • Verified Purchase
        2 found this review helpful
        Showing 1-10 of 61 reviews