Noco BT31S
Group 31 Heavy‑Duty Battery Tray
The NOCO BT31S battery tray offers a durable and code-compliant mounting solution for single Group 31 batteries. Designed for boat, RV, trailer, utility vehicle, and generator applications, it provides robust protection, effective venting, and reliable retention in rugged conditions.
Features
Crafted in the USA from UV-stabilized, impact-resistant plastic, the BT31S remains functional even at –20 °F and resists damage from oil, gasoline, and battery acid Its full-flow ventilated channels allow hydrogen gas to escape,
Advanced Options
while the internal acid reservoir collects spills to protect wiring and mounting surfaces . Retention is assured with a heavy-duty 42″ nylon strap or optional J-bolt/clamp (sold separately), meeting strict marine movement limits.
Product Key Features
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Securely holds a single Group 31 battery using strap or J‑bolt retention
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Rugged, extreme-duty plastic—impact-resistant down to –20 °F
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Full-flow ventilation with integrated acid reservoir
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UV, oil, gas, and chemical resistant for tough environments
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Includes a 42″ military-grade nylon strap (120 kg tensile strength)
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Certified to USCG CFR 183.420 & ABYC E‑10.7 marine safety standards
Reliability & Performance
This tray complies with USCG and ABYC regulations, limiting battery movement to less than 1″ and safeguarding against acid damage and structural fatigue With internal dimensions of 13.7″ × 7.3″ × 1.2″ and a sturdy yet lightweight build (~0.5 lb), it reliably supports and secures batteries across a wide range of mobile and stationary power use cases
Key Features (Bullet List)
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Fits one Group 31 lead-acid/AGM/lithium battery
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42″ military-grade nylon hold-down strap (120 kg tensile)
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Compatible with J-bolts or clamp-based mounting
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Impact-resistant plastic rated to –20 °F; oil, gas, acid, UV resistance
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Full-flow venting with acid-resistant reservoir
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Certified to USCG CFR 183.420 & ABYC E‑10.7 standards
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