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RM 905,Hongchang Plaza,Shennan Road East, luohu District, Shenzhen

21700

EASTAR 4800mAh 21700 lithium battery

EASTAR 4800mAh 21700 lithium battery
EASTAR 4800mAh 21700 lithium battery

EASTAR 4800mAh 21700 lithium battery

The 21700 lithium battery offers significantly higher energy density compared to the 18650 battery, thanks to its larger size and improved space efficiency. This makes it a popular choice for applications like consumer electronics, electric vehicles, balance scooters, solar power systems, LED streetlights, and power tools.

Description

The 21700 lithium battery is a cylindrical lithium-ion battery with a diameter of 21mm and a height of 70mm. 

Its size is larger than the traditional 18650 battery, and this design allows for significant improvements in both capacity and discharge performance. 

Generally, the typical capacity range for a 21700 lithium battery is between 4000mAh and 5000mAh, 

making it particularly effective in applications requiring high energy output.



The nominal voltage of this battery is typically 3.6V or 3.7V, with a charging cut-off voltage of 4.2V and a discharge cut-off voltage of 2.5V. 

This voltage range ensures the battery's stability and safety. Furthermore, the maximum discharge current of the 21700 lithium battery is typically between 10A and 30A, 

with peak instantaneous discharge capabilities of up to 45A, meeting the demands of high-power devices like power tools and electric vehicles.


Energy density is one of the key indicators of a battery's performance, and the 21700 lithium battery has an energy density of 200-250Wh/kg, 

which is about 20% higher than the 18650 battery. This feature means that, for the same weight, the 21700 lithium battery can provide longer endurance, 

making it especially crucial for applications that require high efficiency and longevity.


Application Prospects of the 21700 Lithium Battery

Due to its excellent performance, the 21700 lithium battery shows broad application prospects across multiple fields. In the electric vehicle industry, 

it has become an important choice for enhancing driving range. The successful implementation of this battery in the Tesla Model 3 has demonstrated its capabilities,

 and other automakers are gradually adopting this battery to improve the performance and market competitiveness of their electric vehicles.


In the power tools market, the 21700 lithium battery is highly favored for its high discharge rate and long cycle life. 

Whether in drills, angle grinders, or other heavy-duty tools, this battery provides stable and continuous power, meeting the demands of professional users.


NO. 序号Item 项目Specifications 规格要求
4.1Typical Capacity 典型容量4800mAh (0.2C Discharge 0.2C 放电)
4.2Minimum Capacity 最小容量4750mAh (@0.2C Discharge 0.2C 放电)
4.3Nominal Voltage 标称电压3.7V
4.4Standard Charge 标准充电CC/CV, 0.2C5A, 4.20V
4.5Standard Discharge 标准放电CC, 0.2C5A, 3.00V
4.6End-of-charge Voltage 充电截止电压4.20V ± 0.05V
4.7End-of-charge Current 充电截止电流0.01C5A (At CV mode)
4.8End-of-discharge Voltage 放电截止电压3.00V
4.9Charging Time 充电时间7.0 hours (standard charge) 7 小时
4.10Quick Charge Current 快速充电电流2400mA
4.11Quick Discharge Current 快速放电电流4800mA
4.12Max Discharge Current 最大放电电流7200mA
4.13Initial Impedance 初始内阻Max: 50mΩ
4.14Weight 重量Approx (约): 70 ± 1g
4.15Operating Temperature 工作温度Charging (充电): 0℃ ~ 45℃
Discharging (放电): -20℃ ~ 60℃
4.16Storage Temperature 储存温度-5℃ ~ 35℃
4.17Storage Humidity 储存湿度≤ 75%RH
4.18Appearance 外观Without scratch, distortion, contamination, and leakage
(无划痕、变形、污迹、电解液泄露)
4.19Standard Environmental Condition 标准环境Temperature 温度: 23 ± 5℃
Humidity 湿度: 45-75%RH
Atmospheric Pressure 大气压: 86-106 KPA
21700 5000.png


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TEL: 86-18664968482

E-mail: info@eastarco.com sales6@eastarbattery.com

Company add: RM 905,Hongchang Plaza,Shennan Road East, luohu District, Shenzhen

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