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12V 40Ah LiFePO4 Starting Battery 500CCA Bluetooth Marine RV Truck Lithium Battery With Smart BMS
Command Every Start: High-Power Lithium Performance for Heavy-Duty Applications
Engineered for demanding applications where standard batteries falter, the 12V 40Ah High-Crank LiFePO4 Battery delivers unwavering power to turn over the most challenging engines. With a formidable 500 CCA and 512Wh of energy, this robust lithium solution is designed for trucks, large marine outboards, high-performance vehicles, and critical backup systems. It combines instant high-current punch for reliable starting with deep-cycle resilience for auxiliary power, all in a maintenance-free package backed by Yunfan Factory's 15 years of power expertise.
Engineered Excellence: Superior to Lead-Acid in Every Way
Dominant Starting Power & Energy Reserve
High-Output Cranking (500 CCA): Generates massive current surge for immediate ignition of larger displacement engines, even under challenging conditions
Substantial Energy Capacity (512Wh): Provides significant energy reservoir for engine starts and extended operation of accessories and electronics
Rapid Recharge Capability: Leverages high charge current acceptance (20A) to recover from discharge quickly, minimizing downtime
Intelligent Design for Peace of Mind
Advanced Bluetooth Connectivity: Monitor voltage, state of charge, and health status directly from your smartphone
Comprehensive Integrated BMS: Protection against overcharge, deep discharge, overcurrent, short circuits, and cell balancing
Inherent Stability of LiFePO4: Lithium Iron Phosphate chemistry provides thermal and structural stability for enhanced safety
Durability That Redefines Value
Extended Service Life (4000+ Cycles): Engineered for thousands of deep discharge cycles, multiple times longer than lead-acid equivalents
10-Year Design Philosophy: Crafted with premium Grade A LiFePO4 cells and robust construction for exceptional endurance
Optional Low-Temp Operation: Available self-heating function ensures reliable performance in sub-freezing environments
Practical Advantages for Real-World Use
Maintenance-Free Operation: No terminal cleaning, watering, or equalization charges required
Lightweight & Powerful: Approximately 5kg weight offers dramatic reduction compared to lead-acid batteries
Eco-Conscious Choice: Contains no toxic heavy metals with longer usable life reducing environmental impact
Ideal Applications
Heavy-Duty Trucks & Equipment
Delivers reliable cold cranking power for diesel engines and commercial vehicles. Robust build and high CCA rating meet rigorous demands of daily professional use.
Large Marine & Fishing Vessels
The ultimate marine cranking battery for larger outboards and inboards. Corrosion-resistant design and substantial power reserve ensure starts in all conditions while supporting vital onboard electronics.
Performance & Luxury Vehicles
Provides stable, high-current power for vehicles with demanding electrical systems and stop-start technology. Lightweight design benefits performance enthusiasts.
Backup Power & Off-Grid Systems
Serves as highly efficient, long-lasting storage for solar setups or backup inverter systems, capable of handling high surge loads from appliances and tools.
Custom Solutions by Yunfan Factory
Your Vision, Manufactured with Our Precision. As an industry leader with over 15 years of specialization, Yunfan Factory provides comprehensive OEM and ODM services.
Branded Customization: Launch your own product line with custom branding, packaging, and tailored technical specifications
Application-Specific Engineering: Adapt BMS parameters, capacity, dimensions, and features to match your unique market needs
White-Label Development: From custom Bluetooth applications to complete battery system design, turning concepts into market-ready products
Global Distributor Support: Competitive wholesale pricing, reliable volume production, and dedicated support worldwide
Packaging & Global Supply Chain
Individual Protective Packaging: Each unit securely housed in custom-fitted carton for safe delivery
Fully Certified for Transport: Tested and certified to meet international safety standards including UN38.3
Efficient Global Logistics: Established shipping partnerships ensure cost-effective, timely worldwide delivery
Frequently Asked Questions
Is the 500 CCA rating sufficient for my large diesel engine?
A 500 CCA rating is robust for many large diesel applications. We recommend comparing it to your engine manufacturer's specified CCA requirement. This battery is engineered to meet or exceed demanding specifications.
Can I use my existing lead-acid battery charger?
No. For optimal performance, safety, and lifespan, you must use a charger specifically designed for 12.8V Lithium Iron Phosphate (LiFePO4) batteries. Incompatible chargers can cause damage.
How does the weight compare to a lead-acid battery with similar power?
This is a major advantage. A lead-acid battery offering comparable cranking power (500+ CCA) could weigh 15kg or more. Our LiFePO4 solution achieves this at approximately 5kg, offering over 60% weight savings.
What does the Bluetooth app allow me to do?
The companion app provides a dashboard to view real-time data including State of Charge (SOC), voltage, current draw, battery temperature, and estimated health, putting essential diagnostics in your hand.
Is this battery suitable for use in a dual-battery system?
Yes, its deep-cycle capability makes it excellent for dual-battery setups in RVs, campers, or boats. Consult with your system integrator or our team for proper isolation setup.
What warranty support does Yunfan Factory provide?
Yunfan Factory stands behind product quality with clear, substantive warranty terms provided with purchase, reflecting confidence in durability and performance.
Why Partner with Yunfan Factory?
Deep Technical Expertise: 15+ years focused on advanced lithium battery solutions for automotive and marine applications
End-to-End Control: Complete process management from cell selection to BMS programming and final assembly
Proven OEM/ODM Partner: Trusted manufacturing source for globally recognized brands and distributors
Commitment to Innovation: Continuously integrating smart features like Bluetooth monitoring and self-heating technology
Power Demands More. Start with the Best.
Equip your engine with the advanced power and intelligence of our 40Ah LiFePO4 battery. Contact Yunfan Factory today for product specifications, partnership opportunities, and to experience factory-direct quality.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Seller
Year Established:
2013
Total Annual:
5000000-10000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
Shenzhen Yunfan Power Technology Co., Ltd is a high-tech enterprise,one of the leading professional battery and inverter suppliers,the main products included 12V.24V.48V LiFePo4 Prismatic Battery and off grid inverter.Use Lithium ion Battery Cell and Battery pack which works for powerful equipments ... Shenzhen Yunfan Power Technology Co., Ltd is a high-tech enterprise,one of the leading professional battery and inverter suppliers,the main products included 12V.24V.48V LiFePo4 Prismatic Battery and off grid inverter.Use Lithium ion Battery Cell and Battery pack which works for powerful equipments ...
