12V 280Ah / 314Ah / 320Ah LiFePO4 DIY Battery Kit with 4pcs CATL 314AH cells – EU Stock (Customer assemble )，JK BMS, LCD

12V 280Ah / 314Ah / 320Ah LiFePO4 DIY Battery Kit with 4pcs CATL 314AH cells – EU Stock (Customer assemble ),JK BMS, LCD

Reliable. Intelligent. Powerful.

Our high-performance 12V LiFePO4 DIY battery kits are designed for serious energy storage users who demand long life, intelligent control, and maximum safety. Available in 280Ah, 314Ah, and 320Ah configurations, each kit is built with Grade A LiFePO4 cells, a built-in JK Smart BMS with active balancing, and an integrated LCD display for real-time monitoring. Perfect for solar storage systems, RVs, boats, backup power, and off-grid setups.

Technical Specifications

Product Highlights

• High-Capacity Lithium Iron Phosphate (LiFePO4) Battery

  • Choose from 280Ah / 314Ah / 320Ah

  • Nominal Voltage: 12.8V (4S1P Configuration)

  • Energy: Up to 4096Wh (12.8V × 320Ah)

  • Long life cycle: >8000 cycles at 80% DOD, >6000 at 100% DOD

• Built-in JK Smart BMS (Active Balancing)

  • Built-in JK BMS supports active balancing, ensuring each cell remains in sync

  • Protection functions: over-voltage, under-voltage, short-circuit, over-temperature, and low-temperature cut-off

  • Communication interfaces: Bluetooth

  • Optional app monitoring for Android/iOS (via Bluetooth)

• Integrated Display Screen

  • Real-time display of:

    • Battery Voltage

    • Current (Charge/Discharge)

    • State of Charge (SOC)

    • Temperature

    • Cell voltage status

• Poland Warehouse – EU Stock

  • Fast & duty-free shipping across the European Union

  • No customs hassle for EU buyers

  • Reliable after-sales support and return service for European customers

Battery box, BMS, LCD, connecting connectors, terminals all are included.

We will offer you installation file and video, which is easier for assembling the pack .

Its good for home energy storage system, UPS, Caravans, RV and others .

Applications:

Solar Energy Storage Systems (Off-grid or Hybrid)

Recreational Vehicles (RVs, Motorhomes, Camper Vans)

Marine Power (Yachts, Boats)

Emergency Backup Power

Home Energy Storage

Outdoor Mobile Power Stations

CATL 314AH CELLS, in stock in Poland now.

Buy together can get extra disocunt off

Since 2010, we've been one of the largest wholesalers of rechargeable batteries.

We solely focus on high - quality, grade A, brand - new batteries.

Our range includes LiFePO4, LTO, Sodium, solid - state batteries, and other trending ones.

Both cylindrical and prismatic cells are available, with capacities from 1300mAh to 320Ah.

These batteries are mainly for EVs and residential energy storage.

We have warehouses in Poland, the USA, and China.

This enables customers to select high - quality products and avoid poor - quality batteries.

It also allows us to deliver products quickly.

Moreover, we have a battery pack factory that supports design, OEM, and customization like 12V, 24V, 48V, etc.

We are an honest team.

Trust our 14 - year experience to help you achieve great success.

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