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26700 3.2V 4000mAh LiFePo4 Battery High Capacity For Portable Energy Storage
Product Overview
The 26700 High Capacity LiFePO4 Battery Cell is engineered to provide reliable, long-lasting power for a wide range of energy storage and power applications. Featuring advanced Lithium Iron Phosphate (LiFePO4) chemistry, this cylindrical battery delivers exceptional safety, excellent cycle life, and stable voltage output, making it an ideal choice for both commercial and industrial use.
This 26700 LiFePO4 battery, designed specifically for demanding applications, ensures efficient energy output due to its low internal resistance, while the chemistry of lithium iron phosphate provides excellent thermal stability and enhances its resistance to overcharge, over-discharge, and short circuits. Furthermore, the battery is environmentally friendly, contains no heavy metals, and requires very little maintenance.
Key Features
Excellent thermal and chemical stability
Low self-discharge rate for long-term storage
High safety with built-in stable chemistry
Consistent voltage output and low internal resistance
Environmentally friendly and maintenance-free
Technical Specifications
Nominal Voltage
3.2V
Typical Capacity
4000mAh
Cathode materials
LFP
Internal Impedance
≤16mΩ
Weight
89±3.0g
Energy Density
144Wh/kg
Standard Charging
0.5C CC/CV, cut off 0.01C
Standard Discharging
0.5C CC, cut off 2.0V
Max. Continuous Charge
1.5C
Max. Continuous Discharge
3C
Cycle Life
≥3000 cycles
Shelf Life
1 Year
Charging Temperature
0~55℃
Discharging Temperature
-20~60℃
Applications
Household energy storage systems
Portable power stations
UPS and backup power systems
Electric bicycles and scooters
Emergency lighting equipment
Golf carts and drones
Customized LiFePO4 battery packs
Technical Services
We provide comprehensive technical support for the 26700 LiFePO4 Battery Cell, helping customers accelerate product development and ensure reliable battery performance. Our experienced engineering team offers professional assistance from battery selection to complete battery pack integration, supporting both OEM and ODM projects.
Battery Pack Design
We provide customized battery pack design services, including:
Series and parallel cell configuration (1S-N)
Custom voltage and capacity solutions
Mechanical structure design
Lightweight and compact battery pack optimization
BMS Integration
Professional Battery Management System (BMS) solutions include:
Overcharge protection
Over-discharge protection
Overcurrent protection
Short-circuit protection
Temperature monitoring and protection
Cell balancing
Communication protocols including CAN Bus, UART, RS485, SMBus, and Bluetooth
Testing & Quality Assurance
Every battery cell undergoes strict quality inspections before delivery, including:
Capacity testing
Open-circuit voltage testing
Internal resistance measurement
Charge and discharge performance testing
Cell consistency matching
Aging and reliability testing
Appearance inspection
Why Choose Us?
Experienced lithium battery engineering team
One-stop battery cell and battery pack solutions
Fast prototype development and technical response
Strict quality control throughout production
Flexible OEM & ODM customization
Reliable technical support before and after sales
Global shipping and export experience
Whether you need a single 26700 LiFePO4 battery cell or a fully customized battery pack solution, we provide professional technical services to help you develop safe, efficient, and reliable power systems for your application.
Frequently Asked Questions
What are the specifications of the 26700 3.2V 4000mAh LiFePO4 Battery Cell?
The battery features a nominal voltage of 3.2V, nominal capacity of 4000mAh, and uses Lithium Iron Phosphate (LiFePO4) chemistry. It is designed to provide high capacity, long cycle life, and reliable performance for a wide range of applications.
What are the advantages of LiFePO4 batteries?
LiFePO4 batteries offer several key benefits over conventional lithium-ion batteries, including:
Excellent thermal and chemical stability
Longer cycle life
High safety with low risk of thermal runaway
Stable voltage output
Low self-discharge rate
Environmentally friendly and maintenance-free
What is the storage recommendation for this battery?
For long-term storage:
Store the battery in a cool, dry environment
Avoid direct sunlight, high humidity, and extreme temperatures
Do not store the Battery Cell together with combustibles
For maximum performance, discharge the cell in a temperature range of -20°C to 60°C
Are samples available for testing?
Yes. We support sample orders for product evaluation, prototype development, and performance verification before mass production.