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The Noco Company

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Product Description
Shipping Notes: This item ships directly from the manufacturer.** Please allow 3-5 Business Days for Delivery.

12V 120Ah 12V Lithium Ion LiFePO4 Dual Purpose Battery (NLX31)

*Compatible with button head bolts, SAE terminal posts, and threaded rods for secure mounting and with Group 31 BCI Size.

Introducing the all-new NOCO Lithium NLX31 12V Lithium-Ion LiFePO4 Dual-Purpose Battery, a Group 31 battery, rated at 120Ah (1536Wh) with 1600-amps of starting power. It's better than lead-acid in almost every way. No sulfation, lighter in weight, higher starting power, and more usable capacity.

  • 12 V lithium-iron-phosphate (LiFePO₄) chemistry delivers 120 Ah (1,536 Wh) of usable energy capacity, making it perfect as both a deep-cycle and starter battery.
  • Designed in BCI Group 31 form factor for seamless drop-in upgrade from traditional lead-acid batteries—measuring approx. 8.58″ × 12.99″ × 6.81″ (218 × 330 × 173 mm) and weighing about 33 lbs (14.97 kg).
  • Massive 1,600 amps peak starting current and 200 amps continuous discharge capability for demanding applications like vehicle or marine engine starts.
  • Dual-purpose functionality: combines deep-cycle endurance and high-crank starting power—so you can run electronics and reliably crank your engine when needed.
  • Advanced auto-enabled Battery Management System (BMS) provides bi-directional cell balancing and protects against over-charge, over-discharge, over-current, short-circuit, extreme temperatures, and battery imbalance—ensuring long life and safety.
  • Rapid recharge capable: when used with compatible smart chargers (e.g., NOCO Genius series), charging can be dramatically faster than lead-acid—recovering full capacity in minutes rather than hours.
  • Versatile terminal connection options: supports button-head bolts, SAE posts, and threaded rods (3/8″-24 x 9/16″, 3/8″-24, 5/16″-24) for flexible installation in diverse setups.
  • IP66 rated housing offers water and dust resistance—a rugged choice for marine, RV and mobile use where harsh conditions are the norm.
  • Engineered internal honeycomb lattice and reinforced plastic shell increase mechanical durability while keeping weight down—far lighter than equivalent lead-acid batteries.
  • Proven longevity: rated for thousands of cycles (2,000 cycles at 100% depth of discharge; 4,000 at 80%; 10,000 at 50%) meaning up to 20x longer service life compared with typical lead-acid options.

Ideal for marine, RV, off-grid solar/battery bank systems, mobile workshops or any high-demand 12 V application requiring both starting power and deep-cycle capacity.

What’s in the box: NLX31 battery, handle, dual SAE posts, multiple threaded terminals and bolts/nuts, terminal covers and caps, hex keys, safety & warranty documentation. Limited 5-year warranty is included.

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Warranty
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