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NOCO

NOCO BT31S Group 31 Heavy-Duty Battery Tray for Marine, RV, Camper and Trailer Batteries

  • Based on 2,052 reviews
Condition: New
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FREE refund/replacement until Jan 31, 2026

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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Feb 20
Order within 13 hours and 45 minutes
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Features

  • A rugged battery tray for group 31 batteries, including marine, RV, camper, and trailer batteries.
  • Features a heavy-duty 42-inch hold-down strap with nylon resistant webbing that withstands a tensile load of over 120 kilograms of force.
  • Impact-resistant down to minus 20 degrees Fahrenheit, withstands acid, gas, oil and other contaminants, and immune to UV exposure.
  • Keeps your battery securely mounted and limits battery movement during transportation and operation.
  • Meets United States Coast Guard (USCG) Code of Federal Regulations 183.420, American Boat and Yacht Council (ABYC) E-10.7 specifications, and frustration-free packaging.

Description

The BT31S Battery Tray is one of the most durable and rugged battery trays for marine, RV, camper, and trailer batteries. Designed for use with a single group 31 battery. Include a 42-inch battery hold-down strap made for a water- resistant nylon material and withstands tensile loads of over 120 kilograms. Not only are these battery trays designed for abuse, but they also impact resistance down to minus 20 degrees Fahrenheit, withstand acid, gas, oil, and other contaminants, and immune to UV exposure. Meets United States Coast Guard (USCG) Code of Federal Regulations 183.420 and American Boat and Yacht Council (ABYC) E-10.7 specifications. Other commonly used search terms: battery tray,marine battery tray,boat battery tray,rv battery tray,battery tray kit,batteries tray,small battery tray,battery storage tray,trailer battery tray,battery hold down tray,battery trays,batterie tray,battery tray marine,marine battery trays,battery mounting tray,battery tray with strap,battery holder tray,deep cycle battery tray,marine battery hold down tray,battery box tray,battery trays for boats,12v battery tray,travel trailer battery tray,plastic battery tray,battery tray rv,noco battery tray,battery trays marine,camper battery tray,battery tray hold down,battery tray for boat,group 31 battery tray, 31 battery tray,battery tray 31, battery tray group 31

Brand: NOCO


Size: One Size


Item Weight: 0.59 Pounds


Terminal: Marine Terminal


Automotive Fit Type: Universal Fit


Manufacturer: NOCO


UPC:


Global Trade Identification Number: 08


Brand: ‎NOCO


Size: ‎One Size


Item Weight: ‎0.59 Pounds


Terminal: ‎Marine Terminal


Automotive Fit Type: ‎Universal Fit


Manufacturer: ‎NOCO


UPC: ‎046221130508


Global Trade Identification Number: ‎08


Model: ‎BT31S


Item Weight: ‎9.4 ounces


Product Dimensions: ‎13.97 x 8.39 x 1.28 inches


Item model number: ‎BT31S


Manufacturer Part Number: ‎BT31S


Special Features: ‎Battery Tray For Group 31 Batteries, Battery Tray For Marine, RV, Camper And Trailer Batteries, Heavy-Duty Battery Strap


Date First Available: July 22, 2013


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Feb 20

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • great battery trays for the boat, even greater that i caught them on sale when i needed them.
Size: One Size
needed two of these in my boat for two lithium trolling motor batteries, it really would be nice if they included the 8 screws needed for installation but i lucked up and caught these on a limited time sale for 12 bucks each (they went back to 25ea the morning after i ordered them, so i'll let that slip and give them 5 stars. ... show more
Reviewed in the United States on May 6, 2025 by KC
    • Recheck the size of battery before you order
Size: One Size
It is of high quality and very rugged. Unfortunately the battery I wanted to use this tray for did not fit for me. No fault of the tray.
Reviewed in the United States on May 22, 2025 by elder
    • Battery trays 4 of them
Size: One Size
No screws to secure tray down in boat.But well made
Reviewed in the United States on May 15, 2025 by Ray Arnold
    • Loose fit around battery
Size: One Size
Not quite as tight of fit as I was expecting. My battery has a bit of play within the tray. Still works though once strapped down.
Reviewed in the United States on June 4, 2025 by EMay
    • Group 31 (Battery Size) - bottom tray w/strap
Size: One Size
Battery sizes can be complicated, I didn't even know what group 31 means but I found out that it is the size of our RV's cab battery. I didn't like where the battery sits natively so I purchased the plastic bottom and strap to better secure it's position. Voila`, this was a terrific solution that fit my needs. I am thrilled with the purchase and feel it was a great value overall. The build quality, durabilty, and expected life of the components is solid and unpredictable unless damaged. The fit and ease of installation were the final part of satisfaction making this a great deal and easy to recommend to others. ... show more
Reviewed in the United States on February 4, 2025 by Inspector Gadget
    • Would buy again
Size: One Size
Kinda a simple item not to mess up seems like decent quality
Reviewed in the United States on April 21, 2025 by dan
    • batt
Size: One Size
worked well
Reviewed in the United States on April 23, 2025 by Clarence Pittman
    • Wow just wow the best battery box ever
Size: One Size
Review Image by ed ed
Review Image by ed ed
Review Image by ed ed
Review Image by ed ed
Review Image by ed ed
This is the strongest, well thought out battery box I have ever seen and with all the baots I have owned and do own I have seen many. The strap is nice and feels real nice and the clip is great, love the logo on the strap and the 4 end mounting points are so strong you don't need centers because the way its designed, less holes in a boat the better. I purchase the group 31 for my group 29 battery for my new trolling motor on my 17 carolina skiff. I also purchased the group 27 for my 2020 enclosed 22 ft car trailer that I run a small TV, led lite strip with outlets and 3.1 phone charger ports with an inverter. I will be upgrading my inverter and be buying 3 more group 27 battery trays for the trailer so i can run a microwave and mini fridge when taking the quads out or traveling.. I will also order another 2 for my caolina skiff,s 2 rear batteries. I purchased there marine onboard genius 5x2 for the boats rear batteries and upfront for the trolling motor there was a previous installed guest charger. My 2020 2500 ram diesel has a marine genius pro 10x1 for the fual batteries in parellel and keeps them evenly topped off at 13.18 volts in maintainer mode. Liked the onboard chargers so much I also purchased the Geniuse 10 amp portable charger and the very nice carrying case along with a pack of 20 toy battery quick connects to permanent install the quick plug so I can hook up the 10 amp to any of them and charge each one every month. I'm considering buying the 1 amp maintainer for all my toys and ride on mower. I can't say enough about the NOKO brand and these battery boxes honestly I wasn't expecting much they were cheaper then any others on Amazon but when it arrived I was extremely impressed. Will be buying more and NOKO customer for life fpr all my battery needs!!! No I'm not a sponsor but!!!!! If NOKO wants to sponsor me and my boat so I can travel around the United States and win fishing tournaments and show off NOKO products please do so and contact me!! ... show more
Reviewed in the United States on April 20, 2022 by ed ed

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