An advanced power supply for devices is given by a 18650 lithium ion battery

29 Nov, 2022

By hqt

18650 lithium ion battery

What exactly are lithium ion 18650 batteries?

The 18650 battery, which measures 18 mm by 65 mm and is somewhat larger than an AA battery, is a kind of lithium-ion cell. Many electrical products use rechargeable 18650 batteries as their primary power source. They may be found in a variety of devices, including computers and electric vehicles. The 18650 lithium ion battery is one of the most widespread batteries on the market. One element that contributes to their attraction is their extraordinary energy density. The substance used to create 18650 batteries is lithium-ion, a rechargeable battery.

Implementations for lithium ion batteries with the 18650 size:

  • Most domestic automobile batteries employ this approach, and it is also increasingly being used by solar power storage fields and energy storage base stations to replace the limited and unsustainable lead-acid batteries.
  • There are 1000 charging cycles predicted for the lifetime of a 18650 lithium ion battery. They are typically found in laptop batteries due to their high capacity per unit density. Due to its exceptional operational stability, the 18650 battery is also extensively employed in a variety of electrical areas.
  • One of the most important benefits of the 18650 lithium-ion batteries is that they have a single model, are easy to integrate into fully automated manufacturing, and guarantee batch uniformity of the battery. It is employed by electric cars, massive energy storage systems, and other high voltage, high capacity sectors.

Preventative measures and protection for 18650 lithium-ion batteries:

  • Since 18650, lithium ions are frequently wrapped in steel, their state is comparable to that of liquid, such as a cup of water. As a result, the 18650 can only be cylindrical. These 18650 batteries may be identified if you buy a mobile power supply and observe that it is heavy and thick.
  • The explosion provides the most significant risk if the items produced are of inadequate quality because of the unique features of the 18650 package (with steel shell). Utilize 18650 lithium batteries sensibly. Mixing batteries of various types, brands, or capacities is not advisable. 
  • Never use batteries that are heating up, discoloured, distorted, or otherwise abnormal. If the device is currently in use or charging, remove the battery and cease using it right away.
  • The most excellent voltage that may be used to charge batteries is 4.2V. When a lithium battery has been charged to 4.2V, it is commonly considered to be ultimately charged. Throughout the charging procedure, the battery power progressively increases from 3.7V to 4.2V. To avoid battery damage, charge the battery to a no-load voltage higher than 4.2V. Lithium batteries are employed explicitly in this scenario.
18650 lithium ion battery

Detailed information and characteristics of the 18650 lithium-ion battery:

18650 lithium ion battery, a common alternative for many electrical items, provides a number of advantages over other battery types. 18650 batteries are robust and long-lasting despite their small size and low weight. They are helpful and reasonably priced, and they can also be recharged.

  • There is very little input impedance:

 They have a lower internal resistance than traditional liquid cells, just a little bit. These batteries' internal resistance can even be less than 35m, which considerably reduces the battery's self-power consumption and lengthens the amount of time a mobile phone can be used before needing to be recharged, allowing it to comply with international requirements completely. This lithium battery has the potential to replace Ni MH batteries and is an excellent option for remote-control models since it supports high discharge current.

  • Nil memory effect: 

Another fantastic feature of these batteries is that they don't need to be fully discharged before recharging. Most consumers find that using these gadgets is much more convenient. Because there is no need to utilize all of the remaining power before charging, it is convenient to use.

  • Merging an equivalent circuit with less impedance: 

These batteries may be used to create a variety of connections. A battery pack can be made by joining several parallels or series units. Heavy equipment and tools are used to power things. All that is required is to place these cells next to or on top of one another. The internal resistance of these cells is lower than that of traditional liquid cells. Resistance levels lower than 35m are possible. Many devices, including mobile phones, have longer standby times as a result, and the battery pack's self-discharge rate is reduced.

  • Good capacity and high durability:

 An 18650 Lithium Ion Battery cycle life, which is more than twice as long as that of ordinary batteries, may reach more than 500 cycles under regular operation. The typical lithium-ion battery capacity is just 800 mah, while the usual capacity varies from 1200 to 3600 mph. However, if many 18650 lithium batteries are connected to form a battery pack, the power of the 18650 battery pack may easily exceed 5000 mah.

  • Simple to install: 

These 1800mAh or 2000mAh lithium-ion batteries can be used as drop-in rechargeable cells at 3.7V. These batteries have often been utilized in applications similar to flashlights. This is a perfect solution for individuals who need a strong, portable, and simple battery to install and replace.


Look no further than the 18650 lithium ion battery if you want to power your devices with a reliable and cost-effective solution. They are appropriate for various applications since they frequently have a higher power density than other battery types. Many items, including computers and electric automobiles, include them. JIEYO batteries satisfy most requirements or surpass them in all applications. We offer exclusive products at reasonable prices. Jieyo continues to provide high-quality and competitively priced batteries to all customers following an effective management system, robust development capabilities, meticulous application of the quality system, flawless product performance, and a rapid response service system.