NOCO HM484 Commercial Grade Battery Box Single 8D

Heavy-Duty Battery Protection for Marine, RV & Commercial Applications

The NOCO HM484 is a rotationally molded, commercial-grade battery box engineered to house a single Group 8D battery in the most demanding environments. Built from impact-resistant, UV-stabilized polyethylene, it delivers long-term protection against the elements including saltwater exposure, fuel spills, and extreme cold making it a reliable choice for offshore vessels, large RVs, and commercial equipment.

Key Features

• Four-corner fastening system with captive lid for a secure, rattle-free installation
• Large cable entry holes accommodate wire up to 4/0 AWG for high-current applications
• Full-flow ventilation channels safely release battery off-gassing
• Oversized battery acid reservoir for added safety
• Rotationally molded construction resists UV, oil, gas, and low-temperature cracking
• Meets USCG Code of Federal Regulations 183.420
• Meets ABYC Standard E-10.7

Parts Desk Insights

Best suited for large-format 8D batteries commonly used in twin-engine offshore boats, commercial fishing vessels, and heavy-duty RV house banks. The four-corner fastening and captive lid make this the preferred choice when the battery box is mounted in a high-vibration or rough-water environment. For dual 8D configurations, see the NOCO HM485 Dual 8D Battery Box. For single 4D applications, consider the NOCO HM408 Single 4D Battery Box. For dual 6V golf-cart style batteries, the NOCO HM426 Dual 6V Battery Box is the correct fit. Complete your installation with the NOCO BS48R 48″ Battery Box Strap Kit for a secure, code-compliant hold-down.