MWNKDS 4PCS 3.2V 250Ah LiFePO4 Battery Cells

Aluminum Shell Lithium Iron Phosphate Rechargeable Cells

For DIY 12V / 24V / 48V Battery Pack, Solar Energy Storage, RV, Marine & Backup Power

The MWNKDS 4PCS 3.2V 250Ah LiFePO4 Battery Cells are designed for DIY battery pack assembly, solar energy storage, RV power, marine systems, golf carts, forklifts, inverters, off-grid systems, and home backup power.

Each cell features 3.2V rated voltage, 250Ah nominal capacity, aluminum housing, 8000 cycle life at 80% DOD, <0.3mΩ low internal impedance, and strong discharge performance. With 4 cells connected in series, you can build a 12.8V 250Ah LiFePO4 battery system, suitable for high-capacity energy storage and rechargeable power applications.

Key Features

4PCS 3.2V 250Ah Battery Cells

This set includes 4 pieces of 3.2V 250Ah LiFePO4 battery cells, ideal for building a 12V-class battery pack.

Approximate energy per cell:

3.2V × 250Ah = 800Wh

Approximate 4S system energy:

12.8V × 250Ah = 3200Wh

Actual usable energy may vary depending on BMS settings, charging system, inverter efficiency, temperature, and depth of discharge.

8000 Cycles Long Life

The MWNKDS 250Ah LiFePO4 cell supports up to 8000 cycles at 80% DOD under proper operating conditions.

Benefits:

Longer service life
Lower replacement cost
Stable charge and discharge performance
Ideal for solar energy storage
Suitable for frequent cycling applications

Aluminum Shell Design

The aluminum housing provides a strong, lightweight, and durable structure for battery pack assembly.

Advantages:

Better structural strength
Compact prismatic design
Good heat dissipation performance
Suitable for DIY and professional battery pack projects

Low Internal Impedance <0.3mΩ

Low internal impedance helps reduce energy loss, improve discharge efficiency, and support stable power output.

Performance benefits:

Lower heat generation
Stable current output
Higher discharge efficiency
Better performance for high-power systems

Strong Power Output

Each cell supports 250A continuous discharge and up to 1500A peak discharge current, making it suitable for applications that require strong current output.

Performance data:

Recommended Constant Current: 250A / 1C
Maximum Continuous Discharge Current: 250A / 1C
Maximum Peak Discharge Current: 1500A / 6C
Charging Voltage: 3.65V
Discharge Termination Voltage: 2.0V

Product Specifications

Application Scenarios

Solar Energy Storage

The MWNKDS 3.2V 250Ah LiFePO4 battery cells are ideal for solar energy storage systems, off-grid power stations, home solar backup systems, and renewable energy projects.

They help store solar energy during the day and provide stable power when sunlight is unavailable.

RV / Camper Power

Perfect for RV vans, campers, caravans, and mobile energy systems. The high-capacity design supports lighting, refrigerators, communication devices, fans, inverters, and other travel power needs.

Marine / Boat / Yacht Use

Suitable for marine battery systems, boats, yachts, and electric boat projects when assembled with a compatible BMS, proper waterproof protection, and safety components.

Golf Cart / Forklift / EV Power

The MWNKDS 250Ah LiFePO4 cells can be used for golf carts, forklifts, electric vehicles, electric scooters, and custom mobility power systems that require stable current output and long cycle life.

DIY Battery Pack

Use the cells to build custom battery systems:

4S = 12.8V battery system
8S = 25.6V battery system
16S = 51.2V battery system

A compatible LiFePO4 BMS is required for charging, discharging, balancing, and protection.

Package Includes

Standard package includes:

MWNKDS 3.2V 250Ah LiFePO4 Battery Cell × 4
Busbars / Copper Plates × 1 Set
Screws / Fasteners × 1 Set
Insulation Board × 1 Set

Actual accessories may vary depending on the selected package option.

Important Notes Before Purchase

This product is a battery cell set, not a complete finished battery pack.

To build a safe battery system, you may need:

Compatible LiFePO4 BMS
Copper busbars
Screws and nuts
Insulation board
Battery case or compression fixture
Fuse and protection components
LiFePO4 charger
Inverter or solar controller
Correct wiring and balancing setup

Professional installation is recommended. Incorrect wiring, short circuit, overcharge, over-discharge, reverse polarity, or use without BMS may damage the battery or create safety risks.

Payment Information

We support secure payment through Shopify checkout.

Available payment methods may include:

Credit Card
Debit Card
PayPal
Shopify Payments
Apple Pay
Google Pay
Other local payment methods shown at checkout

All payment information is processed through secure encrypted payment channels.

Shipping Information

Safe Battery Packaging

Battery cells are packed with protective materials to reduce vibration, impact, and transportation damage.

Battery Shipping

Lithium battery products may require special shipping channels depending on destination country, order quantity, and logistics route. Delivery time may vary due to customs clearance, local delivery service, weather, or peak season delays.

Tracking Information

Tracking information will be provided after shipment so customers can check order status online.

Customs & Taxes

Import duties, VAT, customs clearance fees, or local taxes may be charged by the destination country. These fees are determined by local customs policy and are usually the buyer’s responsibility unless otherwise stated.

After-Sales Service

MWNKDS provides support for every order.

Our support includes:

Product consultation
Order status assistance
Shipping tracking support
Battery parameter confirmation
Basic installation guidance
Quality issue support
Replacement or refund assistance according to store policy

For damaged or abnormal products, please contact us with:

Order number
Clear photos or videos
Packaging photos
Voltage test data if available
Detailed issue description

After verification, we will provide a suitable solution according to the actual situation and store policy.

Warranty Notice

The battery cells must be used under recommended operating conditions and with a compatible LiFePO4 BMS.

The following situations may not be covered by warranty:

Short circuit
Reverse polarity connection
Overcharge or over-discharge
Water damage
Physical impact or deformation
Unauthorized disassembly
Incorrect series or parallel connection
Use without proper BMS protection
Damage caused by incompatible charger or inverter
Improper storage or installation

Please test and confirm all cell voltages before assembling them into a battery pack.

FAQ

Q1: Is this a complete battery pack?

No. This product includes 4PCS 3.2V 250Ah LiFePO4 battery cells. You need a compatible BMS, busbars, charger, wiring, and case to build a complete battery pack.

Q2: Can I build a 12V battery system?

Yes. 4 cells connected in series can build a 12.8V 250Ah LiFePO4 battery system.

Q3: Can I build 24V or 48V systems?

Yes. 8 cells are required for a 24V system, and 16 cells are required for a 48V / 51.2V system.

Q4: Is it suitable for solar storage?

Yes. It is suitable for solar energy storage when properly assembled with a BMS, solar controller, charger, and inverter.

Q5: What is included in the package?

The package may include 4 battery cells, busbars / copper plates, screws / fasteners, and insulation board depending on the selected option.

Final Selling Point

Build a powerful and reliable DIY battery system with the MWNKDS 4PCS 3.2V 250Ah LiFePO4 Battery Cells.

Perfect for solar energy storage, RV vans, campers, marine systems, yachts, golf carts, forklifts, backup power, and off-grid energy systems.

MWNKDS Energy Solutions — Reliable Power for Every Application.