26650 Battery Pack
The 26650 battery is a rechargeable lithium-ion battery with a voltage of 3.2V, belonging to the LiFePO4 category. It has a diameter of 26mm and a length of 65mm, typically ranging from 2500mAh to 6000mAh, with common capacities including 3000mAh, 3200mAh, and 4000mAh.
Due to the safety and high capacity characteristics of LiFePO4, it is suitable for power tools and energy storage products. It is also the preferred choice for many high-performance devices, especially in situations requiring long-term discharge.
We are a lithium battery factory in China with 10 years of experience. Welcome to inquire about the 26650 battery packs you need.
High Capacity
The main capacity range is between 2500mAh and 6000mAh.
Safer
LiFePO4 has better overall safety performance than lithium-ion batteries.
High Temperature Resistance
Good high-temperature performance, suitable for high-temperature outdoor work.
Long Lifespan
The 26650 battery has a cycle life of over 2000 times.
26650 Battery ion Pack Product
Below are some of the 26650 battery packs we produce: 3.7V 26650 battery pack and 12V 26650 battery pack. Of course, we can also produce different battery packs as you needs. Welcome to contact us to customize 26650 battery packs.
26650 1S1P 3.2V 4000mAh Battery
Nominal voltage: 3.2V
Nominal capacity: 4Ah
Rated energy: 12.8Wh
Charge current: 1.0C rate
Discharge current: 1.0C rate
Diameter: ≤28mm
Length: ≤68.0mm
26650 1S1P 3.2V 5000mAh Battery
Nominal voltage: 3.2V
Nominal capacity: 5000mAh
Rated energy: 16Wh
Charge current: 1.0C rate
Discharge current: 1.0C rate
Diameter: ≤28.0mm
Length: ≤68.0mm
26650 1S1P 3.2V 6000mAh Battery
Nominal voltage: 3.2V
Nominal capacity: 6000mAh
Rated energy: 19.2Wh
Charge current: 1.0C rate
Discharge current: 1.0C rate
Diameter: ≤28.0mm
Length: ≤68.0mm
26650 1S2P 3.2V 8000mAh Battery
Nominal voltage: 3.2V
Nominal capacity: 8000mAh
Rated energy: 25.6Wh
Charge current: 1.0C rate
Discharge current: 1.0C rate
Thickness: ≤28mm
Diameter: ≤54.0mm
Length: ≤68.0mm
26650 4S2P 12.8V 8800mAh Battery
Nominal voltage: 12.8V
Nominal capacity: 8800mAh
Rated energy: 112.64Wh
Charge current: 1.0C rate
Discharge current: 1.0C rate
Thickness: ≤54mm
Width: ≤67mm
Length: ≤117.0mm
26650 1S2P 3.2V 10000mAh Battery
Nominal voltage: 3.2V
Nominal capacity: 10000mAh
Rated energy: 32Wh
Charge current: 1.0C rate
Discharge current: 2.0C rate
Thickness: ≤26.0mm
Width: ≤54.0mm
Length: ≤68.0mm
26650 Battery Pack Applications
Power Tools: The 26650 cell features high capacity and long battery life, making it a popular choice as a power source for many power tools.
Electric Wheelchair: Due to the safety and low cost of the 26650 battery, it is widely used in products such as electric bicycles.
Lighting Equipment: Provides long-term high illumination for flashlights and LED lights, especially for night work lights.
Energy Storage Products: The 26650 battery pack is also widely used in outdoor energy storage and home energy storage products.
Lithium Battery Factory-direct Pricing
- Minimum Order Quantity: 500 pieces per model.
- All orders come with the necessary certificates.
- Any model can be customized in terms of voltage, capacity, size, and charge/discharge rate.
How to DIY 26650 Battery Pack
To DIY a 26650 battery pack, follow these steps:
Materials Preparation
- 26650 Batteries: Prepare a sufficient number of 26650 batteries according to the desired capacity.
- Battery Holder: Use a 3D printed battery holder or purchase a ready-made battery box.
- Battery Management System (BMS): Protects the battery from overcharge, over-discharge, and short circuit.
- Connecting Wires: Suitable wires for connecting the batteries and BMS.
- Soldering Iron: A tool for soldering connections between the batteries and BMS.
- Charger: A charger suitable for 26650 batteries (nominal voltage 3.2V).
21700 Battery Pack Assembly Steps
- Determine Configuration: Based on the desired voltage and capacity of the 26650 battery pack, determine the series (S) and parallel (P) connection method. For example, to DIY a 12V 10A battery pack, you need 3 batteries in series (3S) and 2 batteries with 5A capacity in parallel (2P).
- Assemble Batteries: Place the batteries in the holder according to the designed series and parallel configuration. Ensure the correct connection of the positive and negative terminals. In series, connect the positive to the negative of the next battery; in parallel, connect the positives together.
- Secure Batteries: Use hot glue or the battery holder to fix the batteries together, ensuring they are stable and won’t come loose, which also helps with heat dissipation.
- Connect BMS: Connect the BMS’s P- and P+ to the battery pack’s P- and P+, ensuring correct connection.
- Install Charging Interface: Connect the charging interface to the BMS to charge the battery pack. If the output and input ports are different, you need at least four electronic wires.
- Test and Use: After completing all connections, check if the battery pack’s connections are correct, then perform at least one charge-discharge cycle. Ensure the battery pack can charge and discharge normally.
Lithium-ion battery production process
#1 Cell Selection
Select the quantities of 26650 battery cells you need. Ensure they works fine.
#2 Battery Sorting
Make sure that the capacity, voltage, and internal resistance of the selected cells are consistent.
#3 Arrangement & Assembly
Combine the required battery modules in a series-parallel manner.
#4 Spot Welding
The positive and negative terminals of the battery are connected via nickel tabs to form the desired capacity or voltage.
#5 Mounting Protection Board
Connect the protection board on the battery pack to ensure that its overcharge, overdischarge and short circuit protection functions properly.
#6 Packaging & Aging
Wrap the battery pack in a PVC or metal casing while charging and discharging to activate the battery pack performance.
