Large Battery Box Fits Group 24 Thru 31 Batteries


This large adjustable battery box will keep your batteries clean and secure. Protects nearby surfaces from damage caused by splashed battery acid.


  • Fits Group 24, 27, 29, or 31 batteries
  • Fits any battery length from 10-1/4″ to 13-3/4″
  • Includes adjustable plastic divider panel
  • Includes hold-down strap
  • Heavy-duty polypropylene construction
  • Includes mounting hardware kit
  • Made in the USA

The dimensions shown below were measured with the lid mounted on the box.

Inside dimensions: 7″W x 13-3/4″L x 10″H
Outside dimensions: 8-7/8″W x 16-5/8″L x 10-5/8″H
Part #B-Box-27-31

To buy this large battery box, enter a quantity in the drop-down box below and select the Add to cart button. Then select the Checkout button that appears at the top left.

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Part #: B-Box-27-31 Category:


Our large battery box can be adjusted to fit any group 24, group 27, group 29, or group 31 battery. The extra length of this battery box will adjust to any battery length from 10-1/4″ to 13-3/4″. The perfect way to securely install your battery in a car, boat, camper, RV, or elsewhere. The sturdy battery box is impact resistant and will provide years of excellent protection for your battery and nearby surfaces. The built-in vent channels give excellent ventilation to safely disperse battery gases. The convenient design of the adjustable partition lets you upsize or downsize your battery without the need to replace the battery box.

This plastic battery box is larger than most battery boxes. Simply place your battery inside the box and position it at the end opposite the slots. Then slide the divider panel (included) into the slot closest to the battery. The panel keeps the battery securely in place and prevents it from moving around inside the box. The largest battery that will fit in this container is 13-3/4″ long.

We manufacture other battery boxes in various sizes that will fit Group U1 batteries, Group 24 batteries, Group 27 batteries, and 6-volt batteries. More info about 6-volt deep cycle batteries may be viewed on the U. S. Battery website.

Our large battery box is constructed of heavy-duty polypropylene. This type of plastic is highly resistant to battery acid, oil, gasoline, and other harsh chemicals. It includes a hold-down strap, a mounting hardware kit, and a locking divider panel. Made in the USA at our factory in Ohio.


Product AttributeSpec
Box Quantity1
Box Size18" L x 14" W x 12.5" H
Shipping Weight3.4 lb
ManufacturerDoyle Shamrock Industries
Product NameLarge Battery Box
Part NumberB-Box-27-31
Product CategoryBattery Boxes
Product TypePlastic Battery Box
ApplicationLead-Acid Batteries
Inside Length13-3/4"
Inside Width7"
Inside Height (with lid)10"
Outside Length (with lid)16-5/8"
Outside Width (with lid)8-7/8"
Outside Height (with lid)10-5/8"
Outside Bottom Dims.9.2" W x 13.9" L
Part Weight2.15 lb
Material TypePlastic
Material NamePolypropylene
Made in USAYes
Lid IncludedYes
Mounting Kit IncludedYes
Battery Cable SlotsYes

Additional information

Weight 2.145 lbs
Dimensions 16.63 × 8.9 × 10.63 in

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