NOCO HM485 Dual 8D Battery Box Safe and Secure Construction The NOCO HM485 Dual 8D Battery Box is specially designed with a host of safeguards that make it one of the most secure options for harboring 8D batteries. The HM485's rotationally-molded construction provides ideal protection in lower temperatures and defends against oil and gas damage. It expertly retains impact resistance properties down to -20℉. With UV inhibitors and color stabilizers that prevent structural degradation, you can take this box with you outdoors for the long haul. Also, the internal ventilation and containment system ensures battery fumes exit the box and any acid is safely collected in a reservoir. An Accredited Choice This battery box is made for dual group 8D batteries, such as select Marine, RV, and Commercial equipment. It seamlessly installs on boats, trailers, or campers. The HM485 meets both US Coast Guard and American Boat and Yacht Council regulations and guidelines for safe onboard battery storage. With these certifications, you can be sure the HM485 is a reliable and safe choice to store 4D batteries on your boat.