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SKU: R1176 Optima Single Battery Box

Optima Single Battery Box
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Purchase Optima Single Battery Box
  • Optima Single Battery Box

  • ★★★★★ ★★★★★ 5 reviews
  • Part Number: R1176
  • Shipping Weight: 7.00 pounds

  • $57.95

Optima Single Battery Box

We made these with the fabricator in mind. Made from 1 piece of steel, no welds needed! We made them with very tight tolerances so the battery will not move around, the top plate is also cut in a shape to fit the battery. They have no predetermined location holes cut in them so you can use them as best suits your project without having to work around someone elses idea of how it should be done!

  • Fits Optima 34/78 battery
  • The inside dimensions is measured at the base and is made to accomodate the dimensions of the base of the Optima battery which is as follows: L: 9.75" W: 6.8" H:6.63" 
  • Optima measures their batteries at the top/cap and are as follows: L:10.06" W: 6.94" H: 7.88"  (The length of the cap is larger than our box and will stick out past the edges of the box slightly. Optima also includes the terminals in their height measurement)
  • The outside dimensions of this box measured at the widest points are ~ L: 10" W: 8.58" H: 6.85"

Yes you read that correctly, these measurements are different from the dimensions listed on Optima's website. Optima includes the terminals and battery cap dimensions which sit above our boxes sides/ hold down.

We used mild steel because stainless just isn't necessary in something that is not a show truck and why add $50 to the cost if you don't have to? These are for an Optima 34/78 battery, the most popular size. The Optima battery can mount to either side and they are unidirectional so you can't mount them wrong!


  • This battery box only fits the Group 34/78 Optima Red, Yellow, and Blue top batteries. It does not fit the Group 34, 34R or 78. It must be the Group 34/78.

Write Review
★★★★★ ★★★★★
5.00/5 Stars out of 5 Reviews
Battery Box Early Bronco Proejct
Sean Krejci (CA) | May 9th, 2022
Super happy with this carriage, i was looking for something I can modify to custom drop into the new battery space I built out behind the dash. This was a perfect solution, its heavy duty and was easy to work with to use for my project. Im very happy with the quality and design. A+++
Battery box for my new battery
Cristian L (Sacramento) | October 8th, 2021
Nice design and compact to install in my Cherokee ,
Verified Buyer
Finally, a battery box to meet my needs!
Dan Wierman (Bremerton, WA, US) | April 11th, 2017
When I did the V8 conversion in my Bronco II, I needed a larger battery. The existing tray is really too small. When I found this battery box, I knew it was what I was looking for. With the clean cutout and bends, this will be a great and good looking addition to my project build. Quick delivery too! Thanks!
Verified Buyer
optima battery box
aaron pate (grants pass, OR, US) | October 18th, 2016
This box is why I buy from Ruff Stuff . No way I can make this for what they sell it for ! Fast shipping and QUALITY in every part you BUY ! Thank You DAN I will tell everyone and buy again and again !!
Verified Buyer
Amazing value for the money
Christopher Parrish (boise, ID, US) | November 15th, 2015
This thing fits my Optima battery perfectly. Very well made. The steel is thick and strong enough to be absolutely solid, but still light enough to be reasonable. I fabricated my own mounts to mount this in my 99 Cherokee XJ and found that I was actually able to fit my battery lower and further inboard than the stock battery, which was a major bonus for my situation. I couldn't be happier with this product.

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⚠ WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer. For more information, go to
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