Description
Feature:
- Most Safety, NCM cell, best choice for lithium.
- Good Performance, good consistence for matching or grouping.
- Size Advantage, approximate half size for lead acid.
- Weight Advantage, Same capacity weight is much less.
- Long cycle life, single cell more than 80% after 1000 cycles.
- No memory effects, high efficiency, can charge anytime.
- High temperature performance is great.
- Low self-discharge, monthly rate is less 3%.
- Easy assembly and maintenance for customers
>>Nominal Specification:
| Item | Specification | Remarks | ||
| 4.1 | Typical Capacity | 4000mAh | 0.2 C5A discharge | |
| 4.2 | Minimum Capacity | 4000mAh | 0.2 C5A discharge | |
| 4.3 Nominal Voltage | 3.7V | |||
| 4.4 Discharging Voltage (Min) | 2.75V | |||
| 4.5 Charging Voltage (Max.) | 4.20±0.05V | |||
| 4.6 Charging Current(Std.) | 800mA | 0.2C5A(0 ~ +40°C) | ||
| 4.7 Discharging Current(Std.) | 800mA | 0.2C5A(–20 ~ +60°C) | ||
| 4.8 Max Charging Current | 4000mA | 1.0 C5A(0 ~ +40°C) | ||
| 4.9 Max Discharging Current | 12000mA | 3.0 C5A(–20 ~ +60°C) | ||
| 4.10 Max continuous Discharging Current | 12000mA | 3.0 C5A(5 ~ +45°C) | ||
| 4.11 Internal Impedance | ≤60.0mΩ | AC Impedance 1kHz | ||
| 4.12 Weight | 70g | About | ||
| 4.13 Storage temperature range | < 1 Month | –20 ~ +60°C | ||
| < 3 Month | -20 ~ +45°C | |||
| < 12 Month | -20 ~ +25°C | |||
| 4.14 Charging temperature range |
0 ~ +45°C | |||
Joykoo 3.7V 4000mAh NCM 21700 Battery 3c Cell Vehicle Battery
Joykoo 3.7V 4000mAh NCM 21700 Battery 3c Cell Vehicle Battery
Joykoo 3.7V 4000mAh NCM 21700 Battery 3c Cell Vehicle Battery
Joykoo 3.7V 4000mAh NCM 21700 Battery 3c Cell Vehicle Battery
Joykoo 3.7V 4000mAh NCM 21700 Battery 3c Cell Vehicle Battery
Joykoo 3.7V 4000mAh NCM 21700 Battery 3c Cell Vehicle Battery
>>About us
Shenzhen Koko Electronic Co.,Ltd is one of the professional lithium battery manufacturers in China. We are committed to provide customers with most safety and best performance lithium batteries. Our management team have more than 10 years experience, with more than 3000 square meters plant, now we can afford for most of the customers. After move to new industry park, our monthly output will raise a lot . Our factory have professional cell and battery testing lab, which insured the best quality products for our customers. Most important, our sales and service team travelling all over the world to get the feedback from the customers and improving our products always. So, It is highly appreciated that if you can choose us and grow up together.