NOCO Complete Battery Box Kit – Fits Group 24–31

Engineered for reliability and versatility, the HM318BK-KIT features a rugged snap-top cover, structural reinforced polymer construction, and UV, impact, oil, and gas resistance to perform in harsh environments and extreme temperatures down to -20°F. The adjustable insert allows a secure custom fit for Group 24, 27, or 31 batteries while locking tabs ensure the lid remains safely and securely closed during operation and transport. Its fully ventilated design safely releases battery gases, and the internal spill reservoir captures leaks to protect your RV, vehicle, or boat.

Features & Benefits

• Fits Group 24–31 batteries with adjustable divider for a snug, secure fit.
• UV- and impact-resistant, reinforced polymer resists oil, gas, and weather-related degradation.
• Heavy-duty locking snap-top lid with reinforced side handles for strength and portability.
• Internal acid reservoir for spill containment – safeguards your equipment and surfaces from leaks.
• Fully ventilated construction safely disperses battery gases to prevent pressure build-up.
• Meets US Coast Guard CFR 183.420 and ABYC E-10.7 compliance for safety and reliability in marine/RV use.
• Enclosed rain guards provide protection from unwanted moisture.
• Includes 42-inch mounting strap and hardware kit for quick, secure installation.
• Internal dimensions: 14.0″ L x 7.1″ W x 9.6″ H, External dimensions: 17.6″ L x 10.0″ W x 10.7″ H

Perfect for safeguarding batteries in RVs, motorhomes, campers, boats, trailers, generators, and more, the NOCO HM318BK-KIT delivers peace of mind, superior chemical and impact protection, and hassle-free installation wherever reliable battery storage and transport are needed.