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Brand Name : | TINKO/OEM |
Model Number : | TK18650 2S2P |
Certification : | CE/ROHS/MSDS/UN38.3 |
Price : | Negotiable |
Supply Ability : | 100pcs/day |
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
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