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.