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joinsun ifr21700-40mf 4000mah

IFR21700-40MF 4000mAh High Safety 高安全型

Joinsun IFR21700-40MF 4000mAh High Safety Type 21700 Battery LFP Lithium-ion Cells are UL, CE, RoHS, CCC, and CB certified, suitable for electric scooters, 2-wheel or 3-wheel scooters, self-balancing scooters, electric motorcycles, E-Bikes, electric wheelchairs, power chair, electric tricycle cargo vehicles, electric rickshaws and e-trishaws, kids ride-on cars, and more. 吉欣 IFR21700-40MF 4000mAh 高安全型磷酸铁锂电芯通过了 UL、CE、RoHS、中国3C 和 CB 认证，适用于2轮/3轮电动车，电动代步车，平衡车，电动摩托车，电动轮椅，E-Bike，电动单车，儿童车等产品。

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 IFR21700-40T
Cathode Material 正极材料 LiFePO4 (LFP) 磷酸铁锂
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 12A (3C)
20A (5C Pulse)
Nominal Energy 标称能量 14.4Wh
Energy Density 能量密度 595Wh/L
207Wh/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: 12A (3C)
➋ ≥800 Cycles ➋ ≥800 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 69.5±1g
Series and Parallel 串联和并联数 13S 13P
(46.8V / 52Ah 52000mAh) 13串 13并
(46.8V / 52Ah 52000mAh)
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: 60%
-10°C: 75%
0°C: 80%
25°C: 100%
45°C: 99%
60°C: 95%
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 Electric Vehicle:
Electric scooters, 2-wheel or 3-wheel scooters, self-balancing scooters, electric motorcycles, E-Bikes, electric wheelchairs, power chair, electric tricycle cargo vehicles, electric rickshaws and trishaws, kids' ride-on cars 2轮/3轮电动车，电动代步车，电动滑板车，平衡车，电动摩托车，电动轮椅，E-Bike，电动单车，儿童车
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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