Reliable 18650 Battery Cell Manufacturer

As a professional and certified manufacturer, Tesson is dedicated to bringing you superior quality and technologically advanced 18650 cells. With our commitment to research and development, rigorous safety measures, and eco-friendly manufacturing practices, we provide reliable, high-performance battery solutions. Our versatility in customization also allows us to tailor our products to your unique requirements. Discover the potential of Tesson’s 18650 battery cells, and empower your devices with our industry-leading energy solutions.

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Customization

Tesson provides OEM & ODM services, offering customizable solutions for 18650 battery cells according to the specific needs of customers.

UN Testing

We have all the certificates of MSDS And UN 38.3 to ensure your fast Transport by Train Sea Or Air, We will assist with transportation or even taxes.

Consistent Supply

With Tesson’s large-scale production capability, we can ensure a consistent and stable supply of 18650 cells, even for large orders.

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Check Our Battery Cells

2000mAH

2000mAh
2200mAH

2200mAh
2500mAH

2500mAh
2600mAH

2600mAh
3000mAH

3000mAh
ModelTypical Capacity(mAh)Nominal Voltage(V)Internal Resistance(mΩ)Size(mm)Weight(g)Charge Cut-off Voltage(V)Discharge Cut-off Voltage(V)Continuous Discharge Current(A)Cycle Life
2000mAh-10C20003.7≤18φ: 18.6 /H: 65.3434.22.7520≥300 Cycle
2000mAh-15C20003.7≤18φ: 18.6 /H: 65.343.54.22.7530≥300 Cycle
2200mAh-5C22003.7≤20φ: 18.6 /H: 65.3444.22.7511≥300 Cycle
2200mAh-8C22003.7≤20φ: 18.6 /H: 65.3444.22.7517.6≥300 Cycle
2500mAh-8C25003.7≤18φ: 18.6 /H: 65.3444.22.7520≥300 Cycle
2500mAh-10C25003.7≤18φ: 18.6 /H: 65.3454.22.7525≥300 Cycle
2500mAh-3C25003.7≤30φ: 18.6 /H: 65.344.54.22.757.5≥300 Cycle
2600mAh-3C26003.7≤30φ: 18.6 /H: 65.345.54.22.757.8≥300 Cycle
2000mAh-5C26003.7≤18φ: 18.6 /H: 65.345.54.22.7513≥300 Cycle
2900mAh-10C29003.7≤30φ: 18.6 /H: 65.3454.22.510≥300 Cycle
3000mAh-5C30003.7≤20φ: 18.6 /H: 65.3474.22.515≥300 Cycle
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Why Choose Tesson

Headquaters

research center

Research center

Production line

Production line

Production line

Production line

Production line

Production line

Production line

  • Small Order Acceptable
  • On-demand Manufacturing
  • OEM/ODM Acceptable

With two industrial parks, we have a significant presence in the industry, including one of China’s largest lithium-ion cell production plants. Our comprehensive research center focuses on R&D, testing, and verification. Backed by a dedicated team of experts from various disciplines, we hold patents and are recognized as leading technology centers.




    What is 18650 Battery Cell?

    An 18650 battery cell is a type of rechargeable lithium-ion battery. The name “18650” is a code that represents its physical dimensions: it’s 18mm in diameter and 65.0mm in length. The “0” indicates it is cylindrical in shape.

    Similar to other lithium-ion batteries like 21700 or LiFePO4 26700 battery cell, 18650 cells are commonly used in various electronics because they have high energy density, which means they can store a lot of energy relative to their size. They’re particularly popular in high-drain devices like laptops, flashlights, electric vehicles, and power tools.

    Each 18650 cell typically has a nominal voltage of 3.7 volts, though it can vary slightly based on the specific chemistry used inside. The capacity of these cells usually ranges from about 1800mAh (milliamp-hours) to as high as 3000mAh, although there are now higher capacity versions available as well.

    18650 batteries are rechargeable and can be used multiple times, which makes them a more environmentally friendly option compared to single-use batteries. However, like all batteries, they have a lifespan and will gradually lose their capacity to hold a charge after many cycles of discharging and recharging.

    Safety is an important consideration with 18650 cells. Since they contain a lot of energy in a small package, they need protection from overcharging, overheating, and short-circuiting, which could cause the battery to fail or even explode. Many 18650 cells come with a protection circuit to manage these risks, but they should still be handled carefully.

    Reasons to Choose 18650 Battery Cell

    • High Energy Density: 18650 batteries have a high energy density, meaning they can store a lot of energy relative to their size. This makes them ideal for many applications, from electric vehicles to portable electronics.
    • Rechargeable: Unlike disposable batteries, 18650 cells can be recharged and used hundreds of times, which makes them more cost-effective and environmentally friendly over the long term.
    • Wide Availability: As a popular battery format, 18650 cells are widely available from many manufacturers, which helps to keep costs down and provides a wide range of options for different performance characteristics.
    • Versatility: 18650 batteries are used in a diverse range of applications, including laptops, electric vehicles, flashlights, power tools, and more. They can also be used in single or multiple configurations, depending on the voltage and capacity requirements of the device.
    • Performance: These batteries offer strong performance in terms of cycle life, capacity, and energy efficiency. They are also capable of providing high discharge rates, which is important for high-drain devices.
    • Standard Size: The standardized size of 18650 batteries means they can be easily swapped in and out of devices, and you can be sure that a new 18650 battery will fit in a device designed to take this type of battery.
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    How Do We Produce 18650 Battery Cell

    Making an 18650 battery involves creating layers for the cathode and anode, usually from specific types of metal oxides and carbon materials respectively. These layers are then coated onto metal foils. These prepared layers, along with an insulating separator, are tightly wound together and placed into a metal casing.

    An electrolyte solution is then added to the casing, allowing ions to flow between the cathode and anode. The cell is sealed, and an initial charge and discharge activates the battery. After testing for safety and performance, the batteries are packaged and ready for use.

    This process requires precise manufacturing techniques and rigorous quality control to ensure the safety and performance of the batteries.

    Mixing

    Mixing
    Calendering

    Calendering
    Slitting

    Slitting
    Bottom welding

    Bottom welding
    X ray checking

    X ray checking
    Sealing

    Sealing
    Cleaning

    Cleaning
    OCV

    OCV
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    Other Solutions

    As a leading provider in the industry, we specialize in delivering cutting-edge lithium battery solutions for a wide range of applications. With a strong emphasis on quality, innovation, and reliability, our comprehensive portfolio of lithium batteries caters to diverse needs, from consumer electronics to electric vehicles and energy storage systems.

    power tool battery

    Power Tools

    vaccum cleanner solution

    Vaccum Cleaner

    Automatic Guided Vehicle

    AGV

    ebikes lithium battery packs

    E-bike

    Portable Outdoor Power Station

    Portable Power Station

    Marine-Yacht

    12V 24V LiFePO4 Deep Cycle Battery

    forklift lifepo4 battery supplier

    Forklift

    48V Telecom Battery

    Household Energy Storage

    Related Resources

    How to Custom Battery Pack

    Battery Run Time Calculator

    Battery Design Pricing Basics

    Frequently Asked Questions

    Q1: What capacity do I need?

    This will depend on how much power your device uses and how long you want it to run between charges. Capacity is usually measured in milliamp-hours (mAh) or watt-hours (Wh). Contact us to find a suitable solution.

    Q2: What’s the difference between Lithium-ion and Lithium-polymer?

    These are two types of rechargeable lithium batteries. Lithium-ion batteries usually come in a rigid metal case, while Lithium-polymer batteries are often encased in flexible pouches. They have different characteristics in terms of energy density, capacity, and safety.

    Q3: Are all lithium batteries rechargeable?

    No, there are also non-rechargeable (or “primary”) lithium batteries. Lithium-ion and Lithium-polymer are the most common types of rechargeable (or “secondary”) lithium batteries.

    Q4: What is the C-rate?

    The C-rate is a measure of the rate at which a battery is charged or discharged. For example, a 1C rate means the battery’s discharge current will discharge the entire battery in 1 hour.

    Q5: What’s the life expectancy of a lithium-ion battery?

    Lithium-ion batteries typically last for hundreds to about a thousand charge cycles. Their lifespan can be influenced by various factors including temperature, how they’re used, and how they’re charged.

    Q6: Do lithium batteries have memory effect?

    No, lithium-ion and Lithium-polymer batteries do not suffer from the memory effect, which can reduce the effective capacity of some types of batteries if they’re repeatedly recharged before being fully discharged.

    Q7: What safety features should a lithium battery have?

    Look for batteries with built-in protection against overcharge, over-discharge, over-current, short circuit, and overheating.

    Q8: Are there any shipping restrictions for lithium batteries?

    Yes, because of their high energy content and the potential for dangerous reactions if damaged or incorrectly handled, there are strict regulations for shipping lithium batteries, especially by air.

    Q9: Can I replace my NiMH or NiCd batteries with Lithium-ion?

    This isn’t generally recommended without consulting the device manufacturer, because lithium batteries have a higher voltage and require a different type of charger. Replacing other types of batteries with lithium without appropriate modifications can be dangerous.

    Q10: Can I use a higher capacity lithium battery than the original?

    Yes, generally a higher capacity battery will simply last longer between charges. However, it may also be larger and heavier, and there may be limits to the charging circuit in the device. Always consult the device manufacturer if you’re unsure.