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INR18650-26D

INR18650-26D

INR18650-26D Lithium-ion Battery Features:

High Energy Density

Excellent Safety

Long Cycle Life

High Discharge Rate

Outstanding Temperature Control Performance

Low Internal Resistance Design

Environmental Friendliness and Sustainability


INR18650-26D Lithium-ion Battery Areas

Electric Two-Wheeled Vehicle, Scooter, Hoverboard, Electric Motorcycle, Electric Mobility Scooter, Electric Wheelchair

INR18650-26D Lithium-ion Battery Parameter:

Cell's MaterialsPure Ternary 811
Dimension (mm)Height: 65.0±0.2mm
Diameter: 18.35±0.15mm
Nominal Voltage (V)3.6V
Nominal Capacity (Ah) (0.2c)2600mAh
Internal Resistance (mΩ)≤22mΩ
Weight43.5±1g
Max Discharge Rate8C
Max Charge Rate1C
Cycle life (DOD 80% 25℃)Charge: 0.5C, Discharge: 5C≥600 cycles
Charge: 1C, Discharge: 3C≥1000 cycles
Operating Temperature(Cell Surface)Charge: 0~45℃
Discharge: -10~60℃


The INR18650-26D Lithium-ion Battery is a high-quality cylindrical lithium-ion cell designed for moderate-power applications. With a nominal voltage of 3.6V and nominal capacity of 2600mAh, this battery provides stable and reliable energy for portable electronics, power tools, small home appliances, and energy storage devices.


Constructed with Nickel-Cobalt-Manganese (NCM) chemistry, the INR18650-26D balances energy density, cycle life, and safety. Its maximum continuous discharge rate of 5A ensures efficient performance for medium-power devices, while maintaining thermal stability and reliability. The battery operates safely across a wide temperature range: -20℃ to 60℃ during discharge and 0℃ to 45℃ during charging, making it suitable for various environments.


Joinsun guarantees high-quality manufacturing, with automated coating and welding lines ensuring uniform performance. Each battery undergoes rigorous testing for capacity, cycle life, and safety, providing a long-lasting power solution. The INR18650-26D can achieve over 500 charge-discharge cycles under standard operating conditions, ensuring long-term reliability.


Whether used in portable electronics, smart devices, or small-scale energy storage systems, the INR18650-26D provides efficient, reliable power. With low internal resistance, energy is delivered efficiently, minimizing heat generation and extending device runtime.


INR18650-26D Lithium-ion Battery Key Features & Advantages


Compact 18650 form factor for easy integration.

Moderate 2600mAh capacity for reliable device runtime.

Maximum 5A discharge for medium-power applications.

Long cycle life: ≥500 cycles under standard conditions.

Wide operating temperature range and advanced safety features (overcharge, over-discharge, short-circuit protection).


INR18650-26D Lithium-ion Battery Applications


Portable electronics (flashlights, cameras, handheld devices)

Power tools (cordless drills, screwdrivers)

Small-scale energy storage systems

Smart home appliances and IoT devices

Security devices and lighting systems


FAQ Section


Q1: What is the nominal voltage and capacity of the INR18650-26D battery?

A1: 3.6V nominal voltage and 2600mAh nominal capacity.


Q2: What is the maximum discharge rate?

A2: Supports a maximum continuous discharge of 5A.


Q3: What is the recommended charge rate?

A3: Recommended charge rate is 1C for safety and longer cycle life.


Q4: How long is the battery’s cycle life?

A4: ≥500 cycles under standard operating conditions (80% DOD, 25℃).


Q5: Can this battery be used in high-temperature environments?

A5: Designed for discharge from -20℃ to 60℃ and charge from 0℃ to 45℃.


Q6: Is the INR18650-26D safe to use?

A6: Yes. Equipped with protections for overcharge, over-discharge, and short circuits.


Q7: Can this battery be used for energy storage systems?

A7: Yes, suitable for small-scale energy storage applications.


Q8: How should I store the INR18650-26D when not in use?

A8: Store in a cool, dry place at 40%-60% charge, avoiding short circuits and high humidity.


About Us


The INR18650-26D Lithium-ion Battery is a reliable power solution for compact devices requiring moderate energy output. Its balanced combination of capacity, discharge rate, and cycle life ensures devices run efficiently and safely.


Joinsun provides customized battery solutions, allowing voltage, capacity, and pack configurations to meet unique application requirements. Our quality-controlled production and experienced R&D team ensure that every battery delivers consistent performance, safety, and long-term reliability.


Ensure your devices receive high-quality, reliable power. Order the INR18650-26D Lithium-ion Battery today from Joinsun Battery. For custom solutions or inquiries, contact our sales team.

Product Differentiation/Why Choose Joinsun:

  • 01

    High End Materials

    Source Factory, Comprehensive Service, Quality Assurance, Advanced Technology, High-end Materials: Joinsun products are manufactured in a source factory with comprehensive services, ensuring quality and utilizing advanced technology and high-end materials.

  • 02

    Absolute Safety

    With nearly 2 billion instances of energy support provided globally without incidents, Joinsun ensures safety for all customers.

  • 03

    Strong Durability

    Longer Average Cycle Life Compared to Traditional Batteries, Strong Durability: Joinsun batteries offer a longer average cycle life compared to traditional batteries, showcasing strong durability.

  • 04

    High Cost-Effectiveness

    Joinsun products provide high value for their cost.

Industrial Packaging That Can Be Customized According to Requirements.

* Warranty Policy: Provide warranty and replacement service within a certain period of time to ensure the interests of customers.

* Important Notes: Please strictly follow the instructions provided in the product manual.

Customer Feedbacks

JOINSUN battery packs a powerful punch. lt has never failed to provide enough energy to keep our devices running smoothly. From our smartphone to my portable speakers, this battery has got it covered.

Jacob

Jacob

JOINSUN has provided us with customized lithium battery solutions for our energy storage systems. Their batteries are UL and CE certified, ensuring safety and reliability. Fast shipping and great customer support!

John

John

We needed custom lithium battery packs for our electric bikes, and JOINSUN delivered exactly what we wanted. Their R&D team helped optimize the design, and the production was quick. Definitely our go-to supplier for long-term cooperation!

Sarah

Sarah

We've been sourcing 18650 and 21700 battery packs from JOINSUN for over a year. The battery quality is excellent, with stable performance, high capacity, and long cycle life. Their team is very professional and responsive. Highly recommended!

Michael

Michael

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