18650 battery 2900mah

Best 18650 battery 3.7V 2.9ah lithium

As a best 18650 battery, the 18650 3.7V 2.9Ah lithium battery is a high-quality rechargeable battery designed for various electric devices. This best 18650 battery is made of high-grade lithium-ion cells, which provide high energy density and long cycle life.The battery has a nominal voltage of 3.7V and a capacity of 2.9Ah. It is lightweight, compact, and easy to install, making it an ideal choice for portable devices.

The 18650 3.7V 2.9Ah lithium battery is environmentally friendly and does not contain any harmful substances. It has a low self-discharge rate and can retain its charge for a long time, making it a reliable power source.

In conclusion, the 18650 3.7V 2.9Ah lithium battery is a high-quality, reliable, and efficient power source for your electric devices.


Best 18650 battery – 3.7v 2.9ah
Model TY18650-29E
Nominal Capacity(Typical) [email protected]
Nominal Capacity(Minimum) [email protected]
Nominal Voltage 3.7V
Charging Voltage 4.2V
Charging Method CC-CV(0.5C,4.2V,0.05C cut-off)
Standard Charge Current 0.5C
Discharge Cut-off Voltage 2.75V
Standard Discharge Current 1C
Max Discharge Current 2C
Internal Resistance ≤28mΩ(ACIR)
Cycle life +0.5C/-1C Cap(1000th)/Cap(Av10)≥80%
Operating Temperature(surface temperature) Charge: 0 to 50°

Discharge:-20 to 60°

Weight <47g
Best 18650 battery – 3.6v 3ah
Model TY18650-30MP
Rated Capacity 3000mAH
Min Capacity 2900mAH
Platform Voltage 3.60V
Standard Charging CC-CV,Std.0.2C5,4.2V, cut-off at 1/50C5. 8.0hrs
Charging Current(Max.) 0°~10°0.2C5


20°~45° 0.5C5

Standard Discharging CC,0.2C5,cut-off at 2.5V
Discharging Current(Max) 3C5
AC Impedance ≤40mΩ
Cycle life 500th cycle>80% of 1st Cycle Capacity
Discharge Characteristics

(by rate of discharge)






Best 18650 battery buying guide

  Main content:

  1. Understanding the 18650 battery and its popularity
  2. Significance of selecting best 18650 battery
  3. Factors to consider when selecting best 18650 battery
    1. Capacity and voltage
    2. Charge and discharge C rate
    3. Internal resistance
    4. Price
  4. Identifying bset 18650 battery type
    1. Flat best 18650 battery vs button best 18650 battery
    2. Protected 18650 vs unprotected 18650
    3. 3.2V 18650 vs 3.7V 18650
    4. Lithium-ion18650 vs sodium-ion 18650
  5. Best 18650 battery brands in the market
    1. Panasonic
    2. Samsung
    3. LG
    4. Tycorun Energy
  6. Applications of 18650 battery and battery pack
    1. 18650 battery
    2. 18650 battery pack
  7. What are the safety precautions when using 18650 batteries?
    1. Proper storage and transportation
    2. Avoid overcharging and over-discharging
    3. Use a suitable charger
    4. Understand the device’s compatibility
  8. How to properly maintain and dispose of 18650 batteries?
    1. Proper charging and discharging routine
    2. Regular inspection
    3. Replace in time

In our modern, technology-driven world, powering electric devices has become a critical aspect of daily life. The need for dependable, efficient, and long-lasting batteries is ever-increasing, and the 18650 battery has gained traction as a popular solution for a wide range of applications.

This all-inclusive guide to best 18650 battery aims to equip you with the necessary knowledge to make the right battery selection for your specific requirements.

Understanding the 18650 battery and its popularity

The 18650 battery has garnered significant popularity owing to its versatility in numerous electric devices, including flashlights, e-bikes, electric scooters, and vaping devices.Understanding the 18650 battery and its popularity

The term “18650” represents its dimensions: 18mm in diameter and 65mm in length. These rechargeable lithium-ion batteries are in high demand due to their impressive energy density, extended cycle life, and minimal self-discharge rate.

Significance of selecting best 18650 battery

Opting for the most suitable 18650 battery for your device is vital for ensuring maximum performance and longevity. The ideal battery will supply enough power, retain its capacity over time, and adhere to safety standards. This guide will aid you in understanding the factors to take into account when selecting the best 18650 battery for your needs.

Factors to consider when selecting best 18650 battery

Choosing the right 18650 battery for your specific needs is essential to ensuring optimal performance, safety, and longevity of your electronic devices. With various brands, models, and specifications available in the market, it can be challenging to determine the ideal battery for your application.Selecting the best 18650 battery

This section outlines the critical factors to consider when selecting the best 18650 battery, helping you make an informed decision that best suits your requirements.

Capacity and voltage

The capacity, measured in milliampere-hours (mAh), refers to the amount of energy a battery can hold. A battery with a higher capacity will offer more energy and have a longer runtime between charges. Tycorun’s 18650 battery, for example, offers a single cell capacity of 3000mah.

Voltage, measured in volts (V), determines the battery’s power output. Although most 18650 batteries have a nominal voltage of 3.7V, it is crucial to choose a battery with the appropriate voltage for your device.

Charge and discharge C rate

The charge and discharge rates, denoted by the “C” value, indicate the maximum charging and discharging speeds of a battery. A higher C rate permits faster charging and discharging but may also produce more heat and shorten the battery’s lifespan.

Internal resistance

A battery with low internal resistance minimizes power loss and heat generation, resulting in enhanced efficiency and performance. Batteries with lower internal resistance are typically more expensive but usually offer better performance and longer life.


When selecting an 18650 battery, it is important to consider your budget. While investing in a high-quality battery is crucial, it is also essential not to overspend. Compare various brands and models to find the ideal balance between price and performance.

The above are the main factors to be considered when purchasing 18650 batteries. You can directly left tab “Description” to view the 18650 product specification, which lists all important product parameters, and see if this best sale 1860 battery best meets your requirements. best 18650 battery product.

Identifying best 18650 battery type

Flat best 18650 battery vs button best 18650 battery

Flat best 18650 batteries feature a level positive terminal, while button best 18650 batteries possess a raised positive terminal. The selection between the two hinges on the requirements of your device.

Buttons are usually used for small electronic devices that only require a single or multiple batteries. The Flat ones are usually assembled into battery packs for larger power equipment.18650 battery type

Protected 18650 vs unprotected 18650

Protected 18650 batteries incorporate a compact electronic circuit that defends against overcharging, over-discharging, and short-circuiting. Unprotected batteries do not have this safeguarding circuit, making them less secure but usually more affordable and lighter.

Opt for a protected battery for safety, and an unprotected battery for cost and weight considerations. Protected 18650 is usually also used in small electric devices.

The 18650 battery pack mainly uses unprotected 18650, because the battery pack itself will have a smarter and more complete battery management system to protect battery safety.

3.2V 18650 vs 3.7V 18650

3.2V 18650 batteries are mainly made of lithium iron phosphate (LiFePO4).One of the most significant advantages of this type of battery is its extremely long lifespan.

Furthermore, LiFePO4 batteries are well-known for their stability and safety, making them a popular choice for applications where safety is paramount, such as LiFePO4 motorcycle batteries.3.2V 18650 vs 3.7V 18650

3.7V 18650 is generally a ternary lithium battery, which is currently the most popular type of rechargeable battery. This battery type is better suited for usage in high-drain gadgets like power tools, and vaping equipment because it has a higher voltage than the 3.2V kind.

Before making a purchase, think about your unique requirements and conduct some research to be sure you’re receiving the greatest battery possible.

Lithium-ion18650 vs sodium-ion 18650

The majority of 18650 batteries employ lithium-ion technology, delivering high energy density and extended cycle life. Sodium-ion 18650 batteries represent an emerging technology that provides comparable performance with reduced dependence on scarce resources like lithium.Lithium-ion18650 vs sodium-ion 18650

Nevertheless, sodium-ion batteries are still in the early stages of development and not yet widely accessible.In addition, the performance of sodium-ion batteries is not as good as that of lithium-ion batteries in terms of cell voltage, cycle life, and energy density.

At present, lithium-ion 18650 batteries remain the optimal choice for most uses.

Best 18650 battery brands in the market


Panasonic, a leading player in the 18650 battery market, is highly regarded for its reliable and high-quality products. With an extensive selection of capacities and models, Panasonic caters to a wide array of applications, including consumer electronics, power tools, and electric vehicles.

Panasonic has solidified its position as a best choice for consumers seeking long-lasting and efficient 18650 batteries through constant innovation and a commitment to customer satisfaction.


Samsung is yet another respected name in the 18650 battery market, known for manufacturing batteries with exceptional capacities and best-notch performance. As a result, Samsung batteries are a popular choice for various electronic devices, such as smartphones, lapbests, and power banks.

Best 18650 battery brands in the market


LG is a well-established brand in the 18650 battery industry, recognized for crafting premium-quality batteries. The company’s products strike an ideal balance between capacity, performance, and affordability, making them an excellent choice for a multitude of applications, including electric vehicles, home energy storage systems, and portable electronics.

By leveraging cutting-edge technology and adhering to stringent quality standards, LG has earned a reputation for producing batteries that meet and exceed the expectations of users worldwide.

Tycorun Energy

Tycorun Energy is a rising brand in the 18650 battery market, recognized for its diverse range of batteries that exhibit impressive performance at competitive prices. The company emphasizes product innovation, environmental sustainability, and excellent customer service.Tycorun Energy

One of the best 18650 batteries in Tycorun with extremely good stability is the 3.6v 3ah 18650 battery. The discharge depth of this 18650 battery can reach 80% and it can be recharged more than 3,000 times.

Provide consistent and stable power to your devices without having to worry about running out of power or needing to replace batteries frequently. With a focus on quality and affordability, Tycorun is quickly establishing itself as a reliable choice in the battery industry.

Applications of 18650 battery and battery pack

The versatile 18650 battery and battery packs have become increasingly popular thanks to their high energy density and adaptability.

This section will delve into the various applications where 18650 batteries excel, including consumer electronics, transportation, and medical devices. Discover how these powerful batteries enhance performance and efficiency across a diverse range of industries and use.

18650 battery

18650 batteries are widely used in high-powered flashlights, vaping devices, and video doorbells. Their high energy density and rechargeable nature make them ideal for these applications.Applications of 18650 battery and battery pack

18650 battery pack

18650 battery packs are commonly used in e-bikes, electric scooters, and electric wheelchairs due to their lightweight and high-capacity nature. They are also used in various medical devices such as defibrillators, portable oxygen concentrators, and glucometers, where reliable and long-lasting power is essential.

What are the safety precautions when using 18650 batteries?

Proper storage and transportation

Store and transport 18650 batteries in a cool, dry place, away from direct sunlight and heat sources. Use battery cases or insulated containers to prevent short-circuiting.

Avoid overcharging and over-discharging

Do not overcharge or over-discharge 18650 batteries, as it can lead to reduced performance and potential safety hazards. Use a quality charger that prevents overcharging and monitors the charging process.Avoid overcharging and over-discharging

Use a suitable charger

Always use a charger specifically designed for 18650 batteries. Mismatched chargers can lead to improper charging and potential safety risks.

Understand the device’s compatibility

Ensure that the 18650 battery you choose is compatible with your device. Check the device’s specifications and requirements before purchasing a battery. If you have any questions, please contact us.

How to properly maintain and dispose of 18650 batteries?

Proper charging and discharging routine

Follow a proper charging and discharging routine to maximize the lifespan of your 18650 battery. Avoid overcharging and over-discharging, and use a quality charger.

Regular inspection

Inspect your 18650 batteries regularly for any signs of damage, leakage, or swelling. Replace damaged batteries immediately to prevent safety hazards.Regular inspection

Replace in time

Replace your 18650 batteries when they no longer hold a charge or show signs of reduced performance. Properly dispose of old batteries by recycling them at a designated battery recycling facility.


Q1. Can I have a sample order?
A. Yes, we welcome sample order to test and check quality.

Q2. What about the lead time?
A. Sample needs 5-10 days, mass production time needs 3-5 weeks, it depends on order quantity.

Q3. Do you have any MOQ limit?
A. Yes, we have MOQ for mass production, it depends on the different part numbers. 1~10pcs sample order is available. Low MOQ, 1pc for sample checking is available.

Q4. How do you ship the goods and how long does it take to arrive?
A. We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping is also optional.

Q5. How to proceed with an order?
A. Firstly let us know your requirements or application. Secondly, We quote according to your requirements or our suggestions.Thirdly customer confirms the samples and places a deposit for formal order. Fourthly We arrange the production.

Q6. Is it OK to print my logo on the 18650 battery?
A. Yes. Please inform us formally before our production and confirm the design firstly based on our sample.

Q7. How about cycles life and warranty of your battery?
All of batteries are 2000 cycles life beyond 80% DOD. with 2 years warranty.


Company Profile

lithium ion battery manufacturing SGS
lithium ion battery manufacturing SGS
lithium ion battery factory SGS
lithium ion battery factory SGS


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Overall introduction to lithium battery manufacturing process

This article provides an overall introduction to lithium battery manufacturing process in details, including the whole process of batching, coating, sheeting, preparation, winding, shelling, rolling, baking, liquid injection, welding, and what to notice in each step.

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