Group 27 Battery Box


The Group 27 plastic battery box protects your battery in an enclosed container. The perfect storage solution for sizes Group 27 RV, automotive, and marine batteries. Keeps your battery secure and shields nearby objects from spilled battery acid. The best way to safely install your battery in a car, boat, trailer, camper, RV, or other battery-powered equipment.


  • Designed for a single group 27 battery.
  • Includes a hold-down strap.
  • Includes a mounting hardware kit.
  • Heavy-duty polypropylene construction.
  • Made in the USA.

The battery box dimensions shown below were measured with the cover placed on the box.

Inside dimensions: 7-3/8″W x 12-3/4″L x 9-1/2″H
Outside dimensions: 9″W x 15-11/16″L x 10-1/4″H
Part #B-Box-27

To buy this group 27 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 Category:


Group 27 Battery Box Description

There are three sub-groups of group 27 batteries and their dimensions vary slightly. Our group 27 battery box will fit all group 27 batteries and their sub-groups. This battery case also fits all batteries that measure up to 7-3/8″W x 12-3/4″L x 9-1/2″H. Please measure your battery before ordering to make sure it will fit.

This battery box is designed to fit group 27 auto, marine, and RV batteries. The rugged battery box is impact-resistant and will provide years of excellent protection for your battery. All of our battery box covers have built-in vent channels to allow battery gases to escape.

Our group 27 battery box is made of heavy-duty polypropylene. It is not affected by battery acid, oil, gasoline, or other harsh liquids. It includes a hold-down strap and a mounting hardware kit. All of our battery boxes are made in the USA at our factory in Ohio.

We also make other battery boxes to fit 6-volt, group U1, and group 24 batteries. Our large adjustable battery box will fit any group 24, group 27, group 29, or group 31 battery. Each model includes an acid-proof cover with built-in port slots to route the cables to your battery-powered equipment.

To standardize each battery size, the Battery Council International has assigned groupings known as group sizes that define a battery’s exact size. Each group number specifies the length, width, and height of each battery in both inch and metric scales. Examples of group numbers are 24, 27, 31, etc. Batteries that do not match a group’s exact dimensions but are similar in size are grouped under the same number but assigned a letter (e.g. group 24F).

Batteries are grouped this way to let customers know the exact battery size before buying. This assures a perfect fit in the intended space.

Group 27 Battery Box Features

The battery box cover has a recessed strap groove across the whole width. This keeps the tie-down strap centered with the battery box when securing the lid. The strap keeps the cover firmly in place and stops the battery box from moving. This is crucial for batteries that do not stay in a fixed location. Therefore the strap should always be used in vehicles to keep the battery box in place. When you put a battery in a boat or watercraft, it is a must to heed the federal regulations to make sure this is done safely.

The cover is vital for many reasons. It keeps the battery clean and protects it from the weather. It also covers the exposed battery terminals. This helps to prevent contact with the battery connections which may cause an electric shock. It also acts as a shield against tiny drops of acid spewed from the battery, keeping it held within the container. One more feature of the cover is the built-in channels that extend outward at the sides. These channels allow the cables to exit the battery box. They also provide a vent to stop the buildup of flammable gas inside the box.

Each battery box has a convenient handle at both ends of the container. This gives you an easy way to lift the box when it contains a heavy battery. Each handle is reinforced to withstand the lifting of heavy lead-acid batteries.


Product AttributeSpec
Box Quantity1
Box Size18" L x 14" W x 12.5" H
Shipping Weight3.7 lb
ManufacturerDoyle Shamrock Industries
Product NameGroup 27 Battery Box
Part NumberB-Box-27
Product CategoryBattery Boxes
Product TypePlastic Battery Box
ApplicationLead-Acid Batteries
Inside Length12-3/4"
Inside Width7-3/8"
Inside Height9-1/2"
Outside Length15-11/16"
Outside Width9"
Outside Height10-1/4"
Part Weight2.49 lb
Material TypePlastic
Material NamePolypropylene
Made in USAYes
Lid IncludedYes
Mounting Kit IncludedYes
Battery Cable SlotsYes

Additional information

Weight 2.485 lbs
Dimensions 15.7 × 9.0 × 10.25 in

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