4Pack 12V 640Ah LiFePO4 Battery, 8.19kWh Massive Capacity Lithium Battery with 250A BMS (3200W Output), Bluetooth & Low-Temp Cut-Off, Replaces 6x 12V 100Ah for RV, Off-Grid Solar, Marine

Features

• 8.19kWh MONSTER CAPACITY & SPACE SAVER: Why wire six 100Ah batteries when you can have one? Delivering a massive 640Ah (8192Wh) capacity, this ultimate power beast weighs only 109.02 lbs and measures a sleek 24.92 x 8.58 x 9.53 inches. It eliminates the nightmare of complex parallel wiring and wasted space. Equipped with standard M8 terminals, its the perfect drop-in upgrade for tight RV compartments or off-grid solar setups
• 250A ROBUST BMS & 3200W OUTPUT: Power your heavy-duty appliances with zero hesitation. Upgraded with a heavy-duty 250A Battery Management System, this 12V lithium battery effortlessly handles up to 3200W of continuous output. Easily run your 15,000 BTU RV air conditioner, microwave, espresso machine, and fridge simultaneously without triggering BMS shut-offs. Pure, reliable deep cycle energy for your luxury boondocking experience
• SMART BLUETOOTH & LOW-TEMP CUT-OFF: Total energy control at your fingertips. The built-in Bluetooth module syncs with the Humsienk APP, letting you monitor real-time voltage, capacity (SOC), and cell health. Engineered for extreme weather, it features a smart low-temperature cut-off that automatically stops charging below 32F (0C) to prevent cell damage, ensuring your LiFePO4 battery stays protected during harsh winter camping
• MASSIVE EXPANSION FOR RV & MARINE: Ready to build the ultimate power wall? This 12V 640Ah battery supports massive expansion up to 4 in series and 4 in parallel (Max 4S4P), allowing you to create a staggering 51.2V 2560Ah (131kWh) energy storage system. Its the elite, scalable solution for off-grid cabins, home backup power, yachts, and heavy-duty marine applications
• 10-YEAR LIFESPAN & 5-YEAR WARRANTY: Invest with absolute confidence. Utilizing EV-Grade A cells, it delivers 6000+ deep cycles and up to a 10-year service lifeoutperforming traditional lead-acid batteries by 10X. The smart BMS provides flawless protection against overcharge, short circuits, and extreme temperatures. Backed by elite safety certifications and a solid 5-year warranty, your investment is bulletproof