26700 3.2V 4000mAh LiFePo4 Battery High Capacity For Portable Energy Storage
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.
- 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
| 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℃ |
- 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
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.
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
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
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
- 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.
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.
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
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
Yes. We support sample orders for product evaluation, prototype development, and performance verification before mass production.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.