attwood Vented Battery Box for Group 27 Batteries — Black PowerGuard with Vent, Heavy-Duty Strap

Built for life on the water, this battery box combines rugged polypropylene construction with a vented lid and heavy-duty mounting strap to protect your boat's battery from acid exposure, impacts, and cable strain. The molded dimensions accommodate standard Group 27 batteries and the package includes mounting hardware and a reinforced strap rated well above regulatory minimums.

How does the PowerGuard 9067-1 keep a battery safe in marine conditions?

The box is molded from acid-resistant polypropylene that resists corrosion and endures temperature extremes, protecting the battery from splashes, road vibration, and exposure to fumes. The vented lid allows gases to escape while the cover reduces water entry, striking a balance between airflow and protection.

• Acid-resistant material tolerates harsh marine environments
• Vented design vents hydrogen and other gases safely
• Rolled-edge handles reduce wear when lifting or moving the battery
• Molded interior instructions simplify correct installation

Will it fit my battery and how are cables routed?

The interior cavity measures approximately 13.06 x 6.9 x 10.5 inches, making it suitable for most Group 27 batteries up to about 10.5 inches tall. Enlarged cable openings let you run positive and negative leads neatly without bending or pinching, keeping connections accessible for maintenance.

• Interior sized for Group 27 batteries up to 10.5" height
• Four large cable passages for clean wiring runs
• Space for terminal access while maintaining secure coverage

How strong is the hold-down system and is it compliant?

Attwood includes a heavy-duty 40-inch strap rated to resist 350 pounds of force—well above the basic USCG requirement—so the battery stays in place through rough water and trailering. The complete assembly meets ABYC E-10 and USCG 183.420 specifications for OEM-style battery retention systems.

• 40" strap tested to 350 lb force for secure retention
• Includes mounting hardware for a ready-to-install solution
• Manufactured to meet ABYC and USCG hold-down standards

How easy is it to install and maintain?

The box ships with mounting screws and a clear, molded guide inside the lid so you can position the battery and strap correctly on first install. The durable polyethylene-like material wipes clean easily and the handles make removal straightforward for inspection or replacement.

• Molded installation instructions inside the lid for quick setup
• Included hardware avoids sourcing extra fasteners
• Easy-clean surfaces and practical handles for service access

Who is this for: The Attwood PowerGuard 9067-1 is aimed at boat owners, marine technicians, and RV users who want a durable, regulation-compliant solution to secure and protect a Group 27 battery. It suits anglers, cruisers, and anyone who needs a strong, vented enclosure that simplifies cable routing, reduces corrosion risk, and provides industry-standard retention for on-board power systems.