EVE 48V 304Ah (16x LiFePO4 Cells) + JK 200A BMS Combo Kit

EVE 48V 304Ah LiFePO4 Battery Kit with JK 200A Smart BMS: Engineered for Reliable Off-Grid Energy

Complete 16-Cell 48V Lithium Iron Phosphate Energy Storage Solution with Active Balancing

This EVE 48V 304Ah combo kit pairs 16 premium EVE LF304 LiFePO4 cells with a JK 200A Smart Bluetooth BMS, delivering a robust and intelligent energy storage foundation for demanding off-grid applications. Designed for DIY battery builders and system integrators, the kit provides the core components to assemble a high-capacity 48V lithium battery suitable for RVs, marine vessels, and residential energy storage. By combining genuine A-grade cells with a precision battery management system, this package addresses the common challenges of cell imbalance, premature capacity fade, and inadequate protection found in generic battery builds.

Unlike pre-built batteries that limit configuration flexibility, this kit empowers you to construct a tailored power bank with full control over layout and integration. The included JK BMS 200A offers 2A active balancing and comprehensive programmable protections, ensuring each cell operates within safe parameters and the entire pack delivers consistent performance over thousands of cycles. This reduces the risk of thermal runaway and extends the service life of your investment, making it a dependable choice for critical power systems.

Genuine EVE 304Ah LiFePO4 Cells: High Energy Density and Long Cycle Life

At the heart of this kit are 16 EVE LF304 prismatic cells, sourced directly from the manufacturer to guarantee authenticity and A-grade quality. Each cell features a nominal capacity of 304Ah (typical 315Ah) and factory-welded dual M6 terminals for secure, low-resistance connections. The LiFePO4 chemistry provides inherent thermal stability, a flat discharge curve, and over 4,000 cycles at 25°C, making these cells a superior alternative to lead-acid or lower-grade lithium options that degrade faster under deep cycling.

• Typical capacity of 315Ah for extended runtime in 48V configurations
• Low internal resistance (≤0.5 mΩ) minimises energy loss and heat generation under load
• Wide operating temperature range from -20°C to 60°C (discharge) for diverse environments
• Aluminium shell and robust construction resist physical stress and vibration in mobile installations

JK 200A Smart Bluetooth BMS: Precision Management and Active Balancing

The JK BMS 8S-16S 200A is a microprocessor-controlled battery management system that elevates pack safety and longevity. Its standout feature is 2A active balancing, which transfers energy between cells via supercapacitors to maintain voltage uniformity without the wasteful heat dissipation of passive balancing. This is critical for large-capacity packs where even minor imbalances can lead to reduced usable capacity and accelerated cell wear. The BMS supports LiFePO4, LTO, and sodium-ion chemistries, and its common port design simplifies wiring for charge and discharge circuits.

• 2A active balancing ensures all 16 cells stay within millivolts of each other, maximising pack capacity
• Bluetooth connectivity with Android/iOS app for real-time monitoring of voltage, current, temperature, and SOC
• Comprehensive protections including overcharge, over-discharge, short circuit, overcurrent, and high/low temperature cutoff
• Programmable parameters allow customisation of voltage thresholds and balancing settings to match your specific cells
• Supplied with 750mm balance leads, 400mm NTC temperature sensor (dual probes), and on/off switch for straightforward installation

Kit Contents and Installation Support

This 16S combo kit includes everything needed to assemble a functional 48V battery pack, minus the enclosure and main terminals. You receive 16 EVE 304Ah cells, 16 aluminium busbars with 64 M6 bolts, the JK BMS with wiring harness, and a USB drive containing a detailed instructional video. The video is an essential resource for proper assembly and configuration, helping to prevent wiring errors that could damage the BMS or cells. The included 7AWG (approx. 10mm²) silicone power cables for B- and P- connections are flexible and heat-resistant, suitable for the 200A continuous rating of the BMS.

Applications: From RV House Batteries to Off-Grid Solar Storage

This 48V LiFePO4 battery kit is ideal for building a high-capacity energy store for:

• RV and caravan house batteries replacing lead-acid banks with a lighter, higher-cycling alternative
• Marine and yacht electrical systems where weight savings and deep-cycle endurance are critical
• Off-grid solar power systems for cabins, tiny homes, and remote workstations
• Home backup and UPS systems requiring a reliable 48V DC bus
• DIY powerwalls and energy storage projects where custom configuration is desired

With a recommended SOC window of 10% to 90%, the cells deliver a usable capacity of approximately 240Ah at 48V, providing over 11.5kWh of energy storage. This is sufficient to power essential appliances overnight or supplement solar charging during cloudy periods. The kit's modular nature also allows for future expansion by paralleling additional packs with separate BMS units.

Why This Kit Outperforms Generic Alternatives

Many budget battery kits use unmatched or B-grade cells that exhibit wide capacity variations and degrade quickly. The EVE LF304 cells are factory-graded and matched, ensuring consistent performance across the entire series string. Combined with the JK BMS's active balancing, this kit mitigates the "weakest cell" problem that plagues poorly managed packs, where one underperforming cell limits the whole battery's capacity. Additionally, the direct sourcing from EVE eliminates the risk of counterfeit or relabelled cells, a common issue in the secondary market.

For installers and DIY enthusiasts, the kit reduces the complexity of sourcing compatible components separately. The busbars, bolts, and pre-terminated BMS harness are designed to work together, saving time and reducing the chance of mismatched parts. The instructional video further lowers the barrier to a successful build, making this kit accessible even to those new to lithium battery assembly.

Build Your 48V Power System with Confidence

Assemble a high-performance 48V 304Ah LiFePO4 battery with the EVE and JK combo kit from Solar 4 RVs. Whether you're upgrading your RV's electrical system or constructing an off-grid power solution, this kit provides the genuine cells and intelligent management needed for reliable, long-term energy storage. Order today and take the next step toward energy independence.