Smart Low-Temperature Protection: Stops charging below 32°F and stops discharging below -4°F. Prevents cold-weather damage and helps extend battery lifespan on the water Born for Trolling Motors up to 120lb Thrust: Built-in TVS surge protector helps block voltage spikes for 12V-36V motors. Keeps output steadier in rough water and protects your electric fishing equipment ABYC E-13 Compliant: Marine LiFePO4 with triple-protected BMS (dust,water,salt-spray). Guards against overcharge,overheat,short circuits, etc. - safer power for 12V-36V marine system Light Weight & Group 31: Only 22.16 lbs—up to 64% lighter than 12V 100Ah lead-acid. Reduces boat load for smoother handling, quicker response, and easier installs. Expandable & Long-Lasting: Supports up to 4P4S (51.2V 400Ah, 20.48kWh) and 4000+ cycles at 100% DOD. Grow your bank for RV/solar with fewer replacements. Built for serious marine use, this 12V 100Ah LiFePO4 battery is a smart upgrade for boats running 12V–36V trolling motors. It follows ABYC E-13 guidance and uses a triple-protected BMS board (dustproof, waterproof, salt-spray resistant) with multi-layer safeguards against overcharge, overdischarge,overheat, short circuit and more—so your power stays safer on the water. Cold weather? The intelligent low-temperature protection helps prevent battery damage: charging pauses below 32°F, and discharging pauses below -4°F. That means more reliable performance and a longer service life through changing seasons. At only 22.16 lb in a standard Group 31 size, it’s much lighter than many 12V 100Ah lead-acid options, reducing hull load for easier handling and less strain during installs. A built-in TVS surge protector helps shield 12V–36V motors from voltage spikes, supporting steadier output in choppy conditions. Need to scale up later? Expand up to 4P4S (51.2V 400Ah, 20.48kWh) and enjoy 4000+ cycles at 100% DOD,6000+ cycles at 80% DOD,15000+ cycles at 60% DOD—engineered for up to 10 years of dependable deep-cycle power for marine, RV, or home energy storage