Li-ion 26650 Model 3.7V 8000mAh Battery Price in Bangladesh

The Li-ion 26650 Model 3.7V 8000mAh Battery is a high-capacity rechargeable lithium-ion cell designed for applications requiring long runtime, reliable performance, and excellent energy density. With a nominal voltage of 3.7V and a rated capacity of 8000mAh, this cylindrical battery is ideal for powering high-drain electronic devices, portable power systems, DIY battery packs, LED lighting, robotics, solar projects, and emergency backup systems.

The 26650 battery format is larger than the standard 18650 cell, measuring approximately 26mm in diameter and 65mm in length. The larger size allows it to store significantly more energy, making it an excellent choice for applications where extended operating time is important. Compared to smaller battery cells, the 26650 provides improved runtime while reducing the number of cells required in a battery pack.

This rechargeable lithium-ion battery delivers stable voltage output, low self-discharge, and dependable performance across hundreds of charging cycles. It is commonly used in high-power LED flashlights, portable fans, camping lights, electric toys, power banks, solar energy storage systems, security devices, and DIY electronics projects.

For engineers, students, makers, and hobbyists, the 26650 battery offers an efficient power solution for custom battery pack assembly. When combined with a suitable Battery Management System (BMS), it can be safely integrated into multi-cell battery packs for portable power stations, electric mobility, and backup energy systems.

Its lightweight construction, high energy density, and rechargeable design make it an environmentally friendly alternative to disposable batteries while reducing long-term operating costs.

Whether you’re building a robotics project, repairing a rechargeable device, or designing an off-grid power solution, the Li-ion 26650 Model 3.7V 8000mAh Battery provides dependable and long-lasting power.

🔍 What is a 26650 Li-ion Battery?

A 26650 Li-ion battery is a cylindrical rechargeable lithium-ion cell with a diameter of approximately 26mm and a length of 65mm.

Compared to standard 18650 batteries, the 26650 offers:

• Higher energy capacity
• Longer operating time
• Greater current capability (model dependent)
• Improved battery pack efficiency
• Fewer cells required for high-capacity systems

It is widely used in portable electronics, lighting, solar systems, and industrial equipment.

✨ Key Features of Li-ion 26650 Model 3.7V 8000mAh Battery

• High-capacity 8000mAh rechargeable battery
• Standard 26650 cylindrical format
• Stable 3.7V nominal voltage
• High energy density
• Long operating runtime
• Rechargeable hundreds of times
• Low self-discharge rate
• Lightweight and portable
• Reliable performance
• Suitable for battery pack assembly
• Ideal for DIY electronics projects
• Environmentally friendly rechargeable design

⚙️ Technical Specifications

• Product Type: Rechargeable Lithium-ion Battery
• Battery Model: 26650
• Battery Chemistry: Lithium-ion (Li-ion)
• Nominal Voltage: 3.7V
• Fully Charged Voltage: 4.2V
• Rated Capacity: 8000mAh
• Rechargeable: Yes
• Battery Shape: Cylindrical
• Diameter: Approximately 26mm
• Length: Approximately 65mm
• Cycle Life: Typically 500+ Charge Cycles
• Application: Portable Electronics, Battery Packs, Robotics

Note: Actual usable capacity may vary depending on the manufacturer, testing conditions, discharge current, and product authenticity. Always refer to the supplier’s specifications for verified capacity values.

⚡ Working Principle of Li-ion 26650 Battery

The Li-ion 26650 battery stores electrical energy using reversible electrochemical reactions between its positive and negative electrodes.

During charging, lithium ions migrate from the cathode to the anode where they are stored. During discharge, these ions move back to the cathode, producing electrical energy that powers connected devices.

This reversible process allows the battery to be recharged hundreds of times while maintaining stable voltage and efficient energy delivery.

🔧 Applications of Li-ion 26650 Model 3.7V 8000mAh Battery

• High-power LED flashlights
• Portable fans
• Emergency lighting
• Solar lighting systems
• DIY battery packs
• Portable power stations
• Power banks
• Robotics projects
• Arduino and IoT devices
• Electric toys
• Camping equipment
• Security systems
• Medical devices
• Backup power systems
• Portable electronic products

✅ Advantages of Li-ion 26650 Battery

• High energy storage capacity
• Longer runtime than smaller cells
• Rechargeable and reusable
• Stable output voltage
• Low self-discharge
• Lightweight construction
• Cost-effective over long-term use
• Suitable for high-capacity battery packs
• Reliable power delivery
• Environmentally friendly compared to disposable batteries

⚠️ Limitations

• Requires a compatible lithium-ion charger
• Should not be overcharged or deeply discharged
• Multi-cell packs require a Battery Management System (BMS)
• Capacity claims can vary between manufacturers
• Avoid exposure to excessive heat or physical damage

🛠️ Installation / Usage Tips

• Charge only with a compatible Li-ion battery charger
• Do not exceed the maximum charging voltage of 4.2V
• Avoid discharging below the recommended cut-off voltage
• Use matched cells when assembling battery packs
• Install a suitable BMS for series-connected battery packs
• Keep battery terminals clean and dry
• Store the battery in a cool, dry place when not in use
• Never short-circuit the battery terminals

💡 Why Choose Li-ion 26650 Model 3.7V 8000mAh Battery

The Li-ion 26650 Model 3.7V 8000mAh Battery is an excellent choice for users who require high-capacity rechargeable power in a compact cylindrical format. Its long runtime, stable voltage, and reusable design make it suitable for a wide range of consumer, industrial, and DIY applications.

Whether you are powering LED lighting, building battery packs, or creating portable energy storage solutions, this battery provides dependable performance and long-term value.

🛒 Why Buy from Electroxbd

• 100% Quality Tested Batteries
• Trusted Source for Reliable Electronic Parts
• Fast Delivery Across Bangladesh
• Competitive Pricing
• Genuine Rechargeable Battery Cells
• Dedicated Technical Support
• Ideal for DIY and Professional Projects

❓ Frequently Asked Questions (FAQ)

What is the Li-ion 26650 3.7V 8000mAh Battery used for?

It is used for LED flashlights, portable fans, battery packs, power banks, robotics, solar projects, emergency lighting, and portable electronic devices.

Is the 26650 battery rechargeable?

Yes, it is a rechargeable lithium-ion battery designed for repeated charging and discharging cycles.

Can I use this battery to build a DIY battery pack?

Yes, it is suitable for DIY battery pack assembly when used with a compatible Battery Management System (BMS).

What charger should I use for this battery?

Use a dedicated 3.7V lithium-ion battery charger that supports 26650 cells and follows the correct charging profile.

Where can I buy the Li-ion 26650 Model 3.7V 8000mAh Battery in Bangladesh?

You can buy the Li-ion 26650 Model 3.7V 8000mAh Battery from Electroxbd, a trusted electronics components supplier in Bangladesh.