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joinsun inr21700-40c 4000mah

INR21700-40C 4000mAh Digital 数码型

Joinsun INR21700-40C 4000mAh Storage-Type 21700 Battery Lithium-ion Cells are certified by UL, CE, CCC, and CB, making them ideal for power banks, portable power stations, digital products, small appliances, hair clipper, toothbrush, massage gun, portable handheld fan, flashlight, solar security camera, gimbal stabilizer, bluetooth speaker, emergency lighting, and more. 吉欣 INR21700-40C 4000mAh 储能型锂电芯已通过 UL、CE、中国3C 和 CB 认证，适用于充电宝、户外电源、3C数码产品、便携式风扇、小家电、手电筒、理发器、应急灯、筋膜枪、电动牙刷、无线监视器、摄像云台、蓝牙音箱等产品。

Joinsun uses BASF's cathode materials for 21700 and 18650 lithium-ion cells Joinsun uses Tinci's electrolyte for 18650 and 21700 lithium-ion cells Joinsun uses SHANSHAN's electrolyte for 18650 and 21700 lithium-ion cells Joinsun uses SEMCORP's separator for 18650 and 21700 lithium-ion cells Joinsun uses GUIBAO's anode material for 21700 and 18650 lithium-ion cells Joinsun uses ZET's anode material for 21700 and 18650 lithium-ion cells

UL Certified Joinsun 21700 / 18650 Lithium-ion Cells FCC Certified Joinsun 21700 / 18650 Lithium-ion Cells CE Certified Joinsun 21700 / 18650 Lithium-ion Cells RoHS Certified Joinsun 21700 / 18650 Lithium-ion Cells IEC Certified Joinsun 21700 / 18650 Lithium-ion Cells CB Certified Joinsun 21700 / 18650 Lithium-ion Cells CCC Certified Joinsun 21700 / 18650 Lithium-ion Cells BSMI Certified Joinsun 21700 / 18650 Lithium-ion Cells PSE Certified Joinsun 21700 / 18650 Lithium-ion Cells BIS Certified Joinsun 21700 / 18650 Lithium-ion Cells

SPECS 规格参数

Model 型号 INR21700-40C
Cathode Material 正极材料 NCM (NMC) 三元
Nominal Capacity 标称容量 4Ah (4000mAh)
Nominal Voltage 标称电压 3.6V
Max Charge Voltage 最大充电电压 4.2V
Discharge Cut-off Voltage 放电截止电压 2.75V
Charge Current 充电电流 2A (0.5C)
Discharge Current 放电电流 8A (2C)
16A (4C Pulse)
Nominal Energy 标称能量 14.4Wh
Energy Density 能量密度 595Wh/L
206Wh/kg
Internal Resistance (IR) 内阻 22mΩ ±3
Cycle Life 循环寿命 80% DoD (25°C):
➊ ≥400 Cycles ➊ ≥400 次 Discharge 放电: 8A (2C)
➋ ≥500 Cycles ➋ ≥500 次 Discharge 放电: 4A (1C)
Diameter 直径 21.7±0.15 mm
Height 高度 70.8±0.2 mm
Weight 重量 70±1g
Max Series & Parallel 最大串联/并联 7
Batteries
Operating Temperature 工作温度 Ambient: 电芯周围环境温度:
Charge: 充电: 0~45°C
Discharge: 放电: -20~60°C

Cell Surface: 电芯表面温度:
Charge: 充电: 0~50°C
Discharge: 放电: -20~80°C
Charge Temperature &
Actual Charge Capacity
(Relative to Nominal Capacity) 不同充电温度下的实际充电量
(相对于标称容量) 		0°C: 80%
5°C: 90%
25°C: 100%
45°C: 100%
50°C: 95%
Discharge Temperature &
Actual Discharge Capacity
(Relative to Nominal Capacity) 不同放电温度下的实际放电量
(相对于标称容量) 		-20°C: 65%
-10°C: 80%
0°C: 85%
25°C: 100%
45°C: 99%
60°C: 97%
Storage Temperature 存储温度 1 Year: 1年: 0~25°C
3 Months: 3个月: 0~45°C
1 Month: 1个月: 0~60°C
(Recovery ≥90% after storage) 储存后的容量恢复率 ≥90%
Certifications 认证 UL, FCC, CE, RoHS, EU Battery Regulation, IEC, CB, CCC, BSMI, BIS, PSE, MSDS, UN38.3
Best Uses 适用 High-Performance Energy Storage:
Power banks, portable power stations, mobile power devices

Home Appliances:
Small appliances, digital products, security devices, lighting equipment, portable handheld fan, hair clipper, toothbrush, massage gun, solar security camera, gimbal stabilizer, bluetooth speaker

Tools:
Electric hair clippers 高性能储能: 充电宝，户外电源，移动电源
家电: 3C数码产品，小家电，安防类，筋膜枪，手电筒，电动牙刷，照明类，无线监视器，摄像云台，便携式手持风扇，蓝牙音箱
工具: 理发器
OEM / ODM Yes
Warranty 保修 1 Year 1 年
Daily Production Capacity 吉欣工厂日产能 250,000 Cells 25万只


Joinsun Grade-A 21700 / 18650 Lithium-ion Cells

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21700 Battery / 18650 Battery Manufacturer in China

21700 / 18650 锂电芯中国制造商

Company 公司

Manufacturing Capability 制造实力

Solutions 解决方案

    For Power Bank 充电宝类
    For Portable Power Station 户外电源类
    For Scooter 2轮/3轮电动车类
    For E-Bike 电动单车类
    For Power Tools 电动工具类
    For Garden Tools 花园电动工具类

News 公司新闻

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