Noco HM300BK

Group 24 Snap-Top Battery Box - Heavy-Duty 12 V Enclosure

The NOCO HM300BK battery box is engineered to protect and secure Group 24 batteries in automotive, marine, RVand industrial applications. Durable and safe, it provides robust environmental protection and meets strict regulatory standards for onboard battery use.

Features

Built from reinforced, UV-stabilized molded plastic, the HM300BK withstands extreme temperatures (down to -20 °F), impacts, and chemical exposure Its snap-top design features dual locking tabs and a 42″ strap to ensure the lid remains securely closed during vibration or

Advanced Options

movement. The ventilated lid and acid containment reservoir add an extra layer of safety. Certified for marine environments under USCG and ABYC standards, this box is perfect for boats, trailers, campers, and generators Reinforced ergonomics ensure ease of handling and long-term usability under challenging conditions.

Product Key Features

• Impact-, UV-, acid-, oil-, and gas-resistant molded plastic×operational down to -20 °F

• Snap-top lid with locking tabs and included 42″ hold-down strap for secure closure

• Fully vented lid with cable ports to safely release hydrogen and acid vapors

• Internal reservoir captures acid leaks to protect surfaces and equipment

• Certified for marine use (USCG 183.420 & ABYC E-10.7 compliant)

• Reinforced handles designed to resist cracking under load

Reliability & Performance

The HM300BK maintains structural integrity even in sub-freezing conditions, while its weather-resistant design protects batteries from outdoor elements. Thoughtfully engineered cable routing through multiple ports allows flexible installation, and the built-in reservoir safeguards surrounding equipment from leaks . It fits snugly to minimize battery movement and noise.

Key Features (Bullet List)

• Built for Group 24 12 V batteries (automotive, marine, RV)

• Locking snap-top lid with dual tabs and hold-down strap

• Fully vented cover with flexible cable porting

• Acid containment reservoir inside

• Reinforced handles for transport

• UV, impact, oil, gas, and acid resistant

• Marine certified: USCG 183.420 & ABYC E-10.7

Specification	Details
Model Number	HM300BK
Type	Group 24 Snap-Top Battery Box
Battery Size	Group 24 (12 V)
Internal Dimensions	10.5″ L × 7.2″ W × 9.6″ H
External Dimensions	14.0″ L × 10.0″ W × 10.7″ H
Material	UV-stabilized, impact-resistant plastic
Hold-Down Strap	42″ included
Weather Resistance	Down to -20 °F; UV/oil/acid/gas resistant
Certifications	USCG 183.420, ABYC E-10.7 (marine)
Weight	~4 lbs