NOCO Battery Box Snap-Top BG31S Black Portable 24-31 Group

Description

Product Overview

The NOCO Snap‑Top Battery Box BG31S combines a robust plastic shell with a precision‑engineered snap‑top lid, delivering a water‑resistant, impact‑tolerant enclosure that safeguards Group 24‑31 batteries in the harshest environments. Measuring 17.56 x 9.94 x 11.13 inches and offering 1,750.27 cubic inches of internal volume, the box provides ample space for automotive, marine, RV, deep‑cycle and lithium‑ion batteries while maintaining a compact footprint. The exterior is molded from high‑impact ABS plastic, reinforced with a honeycomb lattice that distributes forces evenly, ensuring the box can endure drops, vibrations, and exposure to acid fumes without compromising structural integrity.

Designed specifically for Group 24‑31 batteries, the BG31S supports a wide range of 12‑volt power sources, from car starter batteries to marine deep‑cycle units. Weighing just 3.3 pounds, the enclosure is lightweight enough for portable applications yet sturdy enough to serve as a permanent mounting solution. The black finish not only provides a sleek, professional appearance but also adds an extra layer of UV resistance for outdoor installations.

Installation is streamlined with pre‑drilled internal pilot holes that align perfectly with standard battery strap mounts, allowing users to secure the box directly to a chassis or frame without additional drilling. For more rugged setups, an optional strap‑mount system offers extra reinforcement, while multiple cable entry ports on the front and sides enable flexible routing of power and ground leads. Optional ventilation holes can be added to improve airflow for batteries that generate significant heat during operation.

Each BG31S package includes a battery divider, a 48‑inch hold‑down strap, a mounting tray, and a set of self‑tapping screws, ensuring a complete installation kit right out of the box. The design complies with USCG 183.420 and ABYC E‑10.7 standards, guaranteeing marine‑grade safety and performance. Rigorous testing validates the box’s ability to resist temperatures down to –20 °F (–28 °C) and to protect against accidental acid spills, making it one of the most reliable battery enclosures on the market.

Usage

In marine environments, the Snap‑Top Battery Box serves as a critical barrier between the battery and corrosive saltwater, preventing moisture ingress and shielding terminals from splashing waves. The snap‑top lid can be opened quickly for maintenance, while the sealed design keeps the battery dry during long voyages. The integrated cable ports allow for clean, organized wiring that resists chafing and reduces the risk of short circuits on deck.

For RV and camper owners, space is at a premium, and the BG31S’s rectangular shape fits neatly into dedicated battery compartments. The lightweight construction makes it easy to relocate when reconfiguring interior layouts, and the multiple entry points support both front‑facing and side‑facing cable runs, simplifying connections to inverters, chargers, and auxiliary power systems. Optional ventilation holes help dissipate heat generated by high‑draw appliances, extending battery life.

Automotive enthusiasts and garage technicians benefit from the box’s portability when storing spare batteries or performing quick swaps during maintenance. The snap‑top mechanism eliminates the need for cumbersome straps, allowing a technician to access the battery in seconds. The durable ABS shell protects the battery from accidental drops and impacts that can occur in busy workshop environments.

Why Choose Us

NOCO has built a reputation for engineering excellence in battery technology and accessories. The Snap‑Top Battery Box reflects years of research into protective enclosures, incorporating a honeycomb lattice that provides superior rigidity without adding unnecessary weight. This design philosophy ensures that the box delivers both durability and ease of handling, a balance that many competitors struggle to achieve.

Every BG31S undergoes a comprehensive quality‑assurance program, including drop testing, water‑resistance verification, and chemical exposure assessments. The result is a product that meets or exceeds industry standards for safety and performance. In addition, NOCO offers a limited warranty that covers material defects, giving customers confidence in the long‑term reliability of their purchase.

Customer support is a cornerstone of the NOCO experience. Our dedicated service team is available to answer installation questions, provide technical guidance, and assist with any warranty claims. We also provide detailed assembly instructions and online resources, ensuring that even first‑time users can install the box correctly and efficiently.

Key Features

• Rugged ABS plastic with honeycomb lattice for impact resistance and long‑term durability.
• Snap‑top lid provides quick, tool‑free access while maintaining a secure, water‑resistant seal.
• Multiple cable entry ports and optional ventilation holes enable flexible wiring and heat management.
• Lightweight design (3.3 lb) makes the box portable for mobile and marine applications.
• Comprehensive after‑sales support, warranty coverage, and detailed installation resources.

FAQ

What battery sizes are compatible with the BG31S?

The BG31S is engineered for Group 24‑31 batteries, which includes most 12‑volt automotive, marine, RV, deep‑cycle and lithium‑ion batteries. It comfortably accommodates the dimensions and terminals of these common battery types.

Is the box truly water‑resistant?

Yes. The enclosure meets marine‑grade water‑resistance standards, protecting the battery from splashes, rain, and humidity. The snap‑top seal prevents moisture ingress while still allowing easy access for maintenance.

Can I install the box without drilling new holes?

Absolutely. The BG31S features pre‑drilled internal pilot holes that align with standard battery strap mounts, allowing you to secure the box directly to a chassis or frame without additional drilling. For extra reinforcement, the optional strap‑mount system can be used.

What warranty does NOCO provide?

NOCO offers a limited warranty that covers any material defects for a period of one year from the date of purchase. Our customer service team assists with warranty claims and provides guidance on proper installation and use.

How do I improve ventilation for high‑heat batteries?

The box includes optional ventilation holes that can be drilled into the side panels. Adding these holes enhances airflow, helping to dissipate heat generated by high‑draw batteries and extending their service life.