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HumsiENK 12V 640Ah LiFePO4 Battery 2 Pack with Bluetooth (24V 640Ah / 12V 1280Ah System), 16.38kWh Massive Off-Grid Solar Power Bank, Batch-Matched, 250A BMS, Low-Temp Cut-Off for RV, Cabin, Marine
✅ In stock
F
Grade
Analysis Confidence
55%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 21, 2026 1:28 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰The current price sits right around what this item typically fetches.
- 📉A lower price did appear very recently, suggesting the market may revisit that level before long.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
0/20
Deal Strength
3/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
HumsiENK Store
🚚 Shipping
Free Shipping
Product Details
✓【Long Lifespan & Cost Efficiency】With 6,000 deep cycles at 80% depth of discharge—equivalent to 10+ years of reliable service, this 12v 640Ah 2 PACK lifepo4 battery far outperforms lead-acid alternatives while significantly reducing long-term costs. Its massive 640Ah capacity delivers 8,192Wh of energy storage with over twice the energy density of comparable lead-acid batteries, all backed by a 5-year warranty and 24/7 customer support.
✓【Smart Monitoring & Upgraded 250A BMS】Monitor SOC, voltage, and temperature in real-time via Bluetooth connectivity. The upgraded 250A BMS provides 6-layer protection against overcharging, over-discharging, overload, short circuits, and high & low temperatures. With a 600A peak discharge current, it also effectively minimizes thermal runaway risks for secure high-power operation.
✓【Wide Applications & Scalable Capacity】Perfect for RVs, off-grid storage, marine use, and 90% of high-power scenarios. Its 4S4P design allows the system to be expanded up to 51.2V 2560Ah and a massive 131kWh energy system.
✓【Flexible Charging & Temperature Resilience】Supports charging via chargers, solar panels, and generators with 0.2C fast charging capability (full recharge in 5 hours). Operating range from -4°F to 149°F ensures reliable performance across diverse climates.It can still discharge normally at temperatures as low as -4°F (-20°C), meeting the demands of winter outdoor use. Charging is automatically disabled at temperatures below 32°F (0°C) to prevent damage to the 12V lithium battery cell. With its wide operating temperature range, this 12v 600Ah+ lifepo4 battery is built to withstand severe environments, giving it a distinct advantage as an outdoor RV power source.
✓【Easy Installation & Direct Compatibility】Weighing just 111.88 lbs with a space-saving design for single-person installation. Standard M8 terminals ensure seamless integration with existing lead-acid battery systems.
✓【High-Power Output】Easily powers demanding devices like RV air conditioners and boat motors, delivering consistent performance for high-power, long-duration applications across various usage scenarios.
⚙️ Specifications
Brand
HumsiENK
Size
2 Pack
Automotive Fit Type
Universal Fit
Manufacturer
HumsiENK
Number of Items
2
Item Highlight
15000+ Cycles 600Ah+ LiFePO4 Battery, IP65 & Low Temp Protection, Perfect for Home Backup, Solar Energy, 2 PACK
Vehicle Service Type
RV, Motorhome, Travel Trailer, Camper, Marine, Boat, Yacht, Commercial Truck
Voltage
12.8 volts
Battery Cell Composition
Lithium Ion
Item Weight
109 pounds
Product Dimensions
8.58"D x 24.92"W x 9.53"H
