ADDTECH | Best 18650 Li-ion Battery Brand-2900mAh

By Addmotor | 30 January 2024 | 0 Comments

The advancement in technology has raised the demand for reliable and long-lasting power resources. There are different types of 18650 lithium batteries available, and it can be hard for everyone to find the best 2900 mAh battery without enough knowledge.


In the article below, we will explore the top 3 18650 lithium batteries i.e. LG INR 18650M29, Samsung INR 18650-29E, and Panasonic NCR 18650PF. All these three batteries have the same capacity of, 2900mAh and are the best-selling in the saturated market. 

Let's compare the main features of all these batteries and uncover which is the best 2900mAh lithium battery for you. 

Which is the Best 12900 mAh Lithium Battery?

We have compared all three batteries for different parameters to figure out which one is the best. The comparison describes each parameter in detail, and It's important while selecting a 2900 mAh lithium battery. 

♦  Technical Specifications of LG, Samsung and Panasonic 2900mAh Batteries

Parameters LG INR18650-M29  Panasonic NCR 18650PF Samsung INR 18650-29E
Weight 45g 47g 48g
Constant Charging Current 0.5C 1.45A 1,375mA
Constant Charging Voltage  0.5C (1375mA) / 4.2V 1.35A/ 4.2V±0.03V 1375mA/4.20V±0.05V
Standard Charging Time 7 hours 4 hours 3 hours
Maximum Charging Current 1.0C(2750mA 1375mA 2750mA
Maximum Discharge Current Continuous / Non-Continuous  6000 mA(Continous) 10,000mA (not continuous) 10A 2,750mAh (continuous), 8250mAh (not continuous)
Internal Resistance ≤ 35 mΩ ≤ 35 mΩ ≤ 45 mΩ
Operating Temperature Range

-10 ~50℃ 【-10 ~ 0℃ : 0.1C(275mA)】

Discharge:-30 ~ 60℃ (Cut-off Temp. 70℃)

Charge : 0 to 45°C

Discharge: -20 to 60°C

Charge : 0 to 45°C

Discharge: -20 to 60°C


♦  Weight Comparison of 2900mAh-18650 Lithium Batteries

Comparing the weights of these batteries offers a valuable perspective on their portability and adaptability for various applications. The LG 18650 battery weighs 45g, showcasing a lightweight profile ideal for applications where minimizing weight is crucial. In contrast, the Samsung INR 18650-29E, at 48g, strikes a balance between weight and performance. 

The Panasonic NCR 18650PF, weighing 47g, positions itself as a versatile option with a well-balanced weight, making it suitable for a range of applications where both power and manageability are essential considerations.

♦  Charger Voltage / Current Comparison Between Top 18650 Lithium Batteries

Understanding the charging specifications of these batteries is essential for choosing the appropriate charger, and ensuring the safety and efficiency of charging. The Panasonic NCR 18650 P requires a charging current of 1.35A at a voltage of 4.2V±0.03V. The LG 18650 battery, with a charging rate of 0.5C (1375mA) at 4.2V for optimal recharging. 

Similarly, the Samsung INR 18650-29E recommends a charging current of 1375mA at a voltage of 4.20V±0.05V, to ensure an efficient and precise charging experience. 

♦  Standard Charging Time of Top 3 Batteries

Efficient charging is another important aspect to consider while selecting a battery.  The Samsung INR 18650-29E cell takes 3 hours to fully recharge, the LG INR 18650M29 cell takes 4 hours to fully charge and the Panasonic NCR 18650P cell has a long charging time of 7 hours. 

A charger with maximum charging current can boost the charging and speed up the process, but it should be according to the recommendations. A charger higher than the recommended maximum current can damage the battery and reduce performance. 

The Samsung INR 18650-29E and LG INR 18650M29 cells support a charger up to a maximum charging current of 2750mA. On the other hand, Panasonic NCR 18650P supports a charger with a maximum of 1375mA. Keep in mind, that a charger beyond this current limit can damage your battery and reduce its performance. 

♦  Max Charging Current Between LG, Samsung, and Panasonic 18650 Lithium Batteries

The maximum current in 18650 lithium batteries refers to the maximum current in amperes calculated during charging. It is necessary to understand and consider for safe and efficient charging. It not only increases the charging speed of the battery but also ensures long-term battery health and high performance in energy storage. 


High current can charge your battery extremely fast, but on the other hand, it can bring some risks such as excessive heat generation and exploding the battery cell. It is highly recommended to charge the batteries only with the mentioned maximum charging current for the best performance and to avoid potential dangers.

The Samsung INR 18650-29E is designed to handle the maximum current of 2750mA, the Panasonic NCR 18650PF can bear a total of 1375mA maximum charging current, and the LG INR 18650M29 has the ability to tackle the maximum charging current of 1375mA.

♦  Max Discharge Current of Best 3 18650 Lithium Batteries

The maximum discharge current is described as the current that a battery can deliver safely during operations or discharge. It is calculated in amperes (A) and is fundamental to consider while buying any battery, including the 18650 lithium-ion batteries.

Difference electronic devices need varying currents and have specific power requirements for smooth operation. The maximum discharge current can help you select the best battery according to the power needs of your device and ensure an adequate power supply.


Always remember, exceeding the maximum discharge current can overheat the battery or explode it and cause huge damage. The LG INR 18650M29 offers a continuous maximum discharge current of 6000 mA and a non-continuous peak current of 10,000 mAh.

The Panasonic NCR 18650 PF is designed to deliver a maximum discharge current of 10A, and the Samsung INR 18650-29E can deliver a continuous discharge of 2750 mAh and a discontinuous current of 8250 mAh. Always check the power requirement of your device and select the most suitable battery with the ability to deliver the required current for optimum performance. 

♦  Internal Resistance Comparison in 18650 Lithium Batteries

Internal resistance refers to the opposition and resistance in the flow of electric current within the battery. It is measured in Ohms and represents the face by electric current during its flow and moment within the battery. The low internal resistance of the battery plays an important role in the safe and secure operations of any battery.


Another important reason for low internal resistance is its role in the safe performance of the battery. A battery with higher internal resistance is not very safe because of its higher temperature that is unsafe. On the other hand, a battery with low internal resistance offers controlled and low temperature, ensuring the safe performance of the battery. A battery with low internal resistance is the best with this additional safety during operations. 


When we talk specifically about the 18650 lithium batteries, the Panasonic NCR 18650 P and LG INR 18650M29, both batteries have low internal resistance at a rate of ≤ 35 mΩ. These two offer additional operating safety with this low internal resistance.  Meanwhile, the Samsung INR 18650-29E  has a bit high internal resistance at ≤ 45 mΩ which makes the battery unsafe as compared to the Samsung and Panasonic batteries.

♦  Discharge Rate of LG, Panasonic, and Samsung 2900mA Batteries

The discharge rate is measured as the speed at which an electric battery delivers power and releases energy. It shows the battery's ability and performance in delivering current. It is very important to consider while selecting a battery for optimal performance. You can estimate the performance of the battery with its discharge rate.  


When looking to select a battery with the best performance, it is necessary to consider the discharge rate of the battery and select one with a high discharge rate. A low discharge rate can affect the battery performance and deliver less power. The discharge rate helps in calculating the performance of the battery. 


The Panasonic NCR 18650P offers a standard discharge rate of 580 mAh, and a maximum discharge rate of, 5400 mAh. Alternatively, the Samsung INR 18650-29E is designed with a discharge rate of 2.50V and automatically cuts off at the temperature of 25°C. The LG INR 18650M29 follows a 0.2 with an automatic cutoff at 2.50V.

♦  Operating Temperature Comparison in 18650 Lithium Batteries

Operating temperature is one of the vital features to consider while selecting a battery for optimum performance. There are a variety of different brands of batteries available, with uncontrollable operating temperatures that are dangerous. When the temperature rise of the battery is uncontrollable, the battery may explode or degrade in performance, thus damaging the battery.


The Addmotor electric bikes use batteries with multiple temperature protections, featuring 65-degree Celsius rated battery protection, which will automatically cut off the power supply when the temperature exceeds this temperature range, protecting the battery's service life and safeguarding your riding safety.In addition, room temperature must also be taken into account for optimal battery performance. 


Now, let’s check what is the operating temperature of our top three 18650 lithium batteries and which one can perform best under extreme weather conditions. The Panasonic NCR 18650P offers a temperature range of -20 to 60°C, the Samsung INR 18659-29E also performs great between the temperatures of -20 to 60°C, and the LG INR 18650M29 has a better operating temperature than the previous and operates between -30 to 60°C with automatic cut off at 


Recommendations: Which 2900 mAh Battery Model Is the Best?

Selection of the best 18650 lithium battery depends upon your specific power needs and operating conditions. If you prioritize precision and global validity for research, development, and battery analytics, the LG 18650 battery with its high-precision digital twin integration may be an ideal choice. The devices with increased power requirements need high discharge rates and consistent power flow with minimum charging time, the Samsung INR 18650 is a perfect option. 


Our final recommendation is the Panasonic 18650 battery, which stands out as an ideal choice to tackle your high power requirements.  It offers long-lasting power, with a high power supply, and can perform well under extreme weather conditions. The Panasonic 2900 mAh battery is the best of all three batteries with its amazing power abilities and usage conditions.

Expert Tips To Select The Best 18650 Lithium Battery

•  Identify your power needs 

•  Consider life span and discharge rate 

•  Check weight and portability 

•  Consider safety features

•  Analyze the brand reputation

•  Consider operational conditions like weather 


In the pursuit of the best, 2900mAh battery, each brand offers a unique set of features catering to diverse user preferences. LG INR 18650M29 impresses with precision, Samsung 18650 battery 18650-29E balances longevity and discharge, while Panasonic NCR 18650PF stands out with longevity and other features. 


Based on the above comparison, the Panasonic NCR 18650PF is the most powerful and best battery amongst all three 2900 mAh batteries. Whether you are looking for a long-lasting battery or need a battery with a continuous high-power boost, this battery will never let you down. It is worth buying when looking for a specifically, 2900mAh lithium battery. 

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