Dongguan KunTeng New Energy Technology Co., Ltd.
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Customized 2S2P 18650 Lithium-ion Battery Pack 7.4V for Digital Product
Battery Description
TINKO 7.4V 18650 2S2P battrey pack 4400mah with PCM board is a common model which is widely used bu customer for their electric product such as fans, toys and lights. The lithium-ion batteries are widely used due to their advantageous features. They have a high energy-to-weight ratio, so they can store more energy in a smaller, lighter package compares to other. They also can work hundreds to thousands of charge and discharge cycles, making them durable for long-term use. Their low self-discharge allowed them to retain charge for extended periods when not in use. With these features the lithium battery used in a variety of applications, from consumer electronics (smartphones, laptops) to electric vehicles. Their voltage and capacity also can be designed through different usage.
Battery Parameters
|
No
| Term | Standard value | Notes | ||
|
1
|
Nominal capacity
| 4400mAh | 0.2C Discharge | ||
|
Minimum Capacity
| 4300mAh | 0.2C Discharge | |||
| 2 |
Nominal voltage
| 7.4V | |||
|
3
| Resistance | After standard charge, AC 1KHz test | |||
| Battery Pack:≤160 mΩ | |||||
| 4 |
Charge limit voltage
| 8.4±0.05V | |||
| 5 | Charging method | CC/CV |
charge with constant current 0.2C to 8.4V,then charge with constant voltage8.4V till charge current is less than 0.01C
| ||
| 6 |
Standard charge current
| 880mA | 0.2C | ||
| 7 |
Maximum charge current
| 2200mA | 0.5C | ||
| 8 |
Standard discharge current
| 880mA | 0.2C | ||
| 9 |
Maximum discharge current
| 2200mA | 0.5C | ||
| 10 |
Discharge cut-off voltage
|
2.3±0.08V
|
PCB End-of-charge Voltage
| ||
| 11 |
Cell discharge cut-off voltage
| 2.75V | |||
| 12 |
Operating Temperature
| 0～45℃ | Charge | ||
| -10～60℃ | Discharge | ||||
|
13
| Storage temperature |
0～45℃
|
Less than a month
| ||
|
10～30℃
| Less than three months | ||||
| 14 |
Storage Humidity
| 65%±20%RH | |||
| 15 |
Weight
| Approx:186.1±2g | |||
| 16 |
Battery storage for 3 months need to charge and discharge a loop to 7.2V～7.8V
| ||||
Product Drawing
Product Applications