Battery Box with Strap, Fits Group 27


In stock online.
Model # 2235604 | Mfg # WMBB27 | UPC # 25282004843

Protect your battery and your boat by installing our rugged and affordable battery box

Designed to fit West Marine batteries, our battery boxes provide an excellent and affordable solution to securing batteries and containing accidental electrolyte (acid) spillage. Due to the corrosive nature of the sulfuric acid used in marine batteries, it is important to protect the surrounding metals and fasteners from exposure; this is especially true for aluminum boats. The rigid polypropylene box and cover are resistant to acid leaks and are tightly fitted to restrain your group 27 battery from moving more than 1 inch in any direction: making them compliant with USCG and ABYC guidelines.

Also, because DC electrical shorts are one of the primary causes of onboard fires, installing a battery box with a cover is critically important for safety. For example, if you drop a crescent wrench across the terminals of an uninsulated marine battery, a massive short will result that could cause a serious electrical fire. Our boxes also are vented to allow the routine discharge of hydrogen gas from flooded batteries.

Cables are run through molded inlet in the cover and the terminals are protected for accidental contact with the cover in place. The mounting hardware and strap are included to make installation straightforward.

Key Features

  • A rugged and affordable solution to safely secure, vent and protect one Group 27 battery
  • Secure cover prevents dangerous across-terminal electrical shorts
  • Vented to allow discharge of hydrogen gas
  • Acid resistant polypropylene construction
  • Hardware and strap are included
  • They meet ABYC Standard E-10 and U.S. Coast Guard Specification Number 183.420 as an OEM-installed battery hold-down system.


  • Inside Dimensions: 12-15/16"L x 7-1/16"W x 8-3/8"H (does not include cover)
 WARNING: This product can expose you to chemicals including (DINP) diisononyl phthalate which is known to the state of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.


Battery Box with Strap, Fits Group 27

Name Value
Compatibility Group 27
Dimensions 7 1/16" Width x 8 3/8" Height x 12 15/16" Length
Type Battery Boxes


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We stand behind everything we sell. If at any time your West Marine purchase does not meet your expectations, you can return it for a replacement or refund. If you are a West Advantage Rewards member, you don't even need a receipt - we'll have a record of your purchase. Returns can be made via mail or in person at their nearest store location. If you are not a West Advantage Rewards member, we will first need to verify your purchase by receipt or other method.

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