Leading 18650 battery 3.7 v 2200mah Manufacturer in China
The 18650 battery 3.7V 2200mAh is one of the most widely used cylindrical lithium-ion cells. It has a full-charge voltage of 4.2V and a recommended discharge cutoff of 3.0V. Some high-drain INR 18650 2200mAh cells can safely discharge to 2.5V or 2.75V, depending on the cell design.
This capacity is available in different chemistries. ICR cells provide higher energy density for portable electronics, while INR cells offer a better balance of safety, cycle life, and high-rate discharge. IFR cells use LiFePO₄ chemistry with a nominal voltage of 3.2V, making them suitable for applications requiring long service life and excellent thermal stability.
Thanks to automated mass production, the rechargeable 18650 3.7V 2200mAh battery remains an affordable choice for flashlights, torches, IoT devices, GPS trackers, power banks, medical equipment, and many other portable products.
For safety, ICR 18650 2200mAh cells typically include a CID (Current Interrupt Device), PTC (Positive Temperature Coefficient), and a pressure relief vent. When used in battery packs, a PCB (Protection Circuit Board) provides additional protection against overcharge, over-discharge, over-current, short circuits, and excessive temperature.
ICR18650 battery 2200mah 3.7v
18650 battery 3.7 v 2200mah Cell Production
High automated production adopts strict quality controls to ensure good consistency, reliable performance, and efficient production. Our cells are integrated with PTC(Positive temperature Coefficient) and CID(current interrupt device) to ensure safety and reliability.
Large-scale cell production not only improves our production efficiency and quality standards, but also decreases our production cost in competitiveness.
18650 battery 3.7 v Advanatage
Safety designs of PTC(Positive temperature Coefficient) and CID(current interrupt device) are integrated in the cell’s internal structure, which can avoid explosions and fires. When the 18650 2200mah 3.7 v cell is short-circuited, the vent mechanism can vent out the gases and overheating immediately due to a high increase in pressure.
Cell match is the vital symbol of reliability and stability, which is a key factor in multiple cell assemblies. 18650 battery 3.7v 2200mah can maintain voltage tolerance within 10mV, capacity tolerance within 5mAh and internal resistance within 1mΩ.
18650 2200mah 3.7v can maintain ultra-long cycle life up to 1000 times with 80% capacity retention. For most applications, it can be used for a shelf life of 2 years. Furthermore, the self-discharge rate of 2200mAh 18650 battery is as low as 2% per month, ensuring the lowest capacity loss even after months of storage.
ICR18650 battery 2200mah 3.7v Cell Specification
- Basic Characteristics
| Attribute | Value / Description | |
|---|---|---|
| 1. Capacity | Nominal: 2200mAh, 0.2C to 2.5V Minimum: 2100mAh, 0.2C to 2.5V | |
| 2. Nominal Voltage | 3.6V | |
| 3. Internal Impedance | ≤50mΩ | |
| 4. Standard Charge | CC/CV, 0.5C (1100mA), 4.2V Cut-off: 44mA | |
| 5. Max. Charge Voltage | 4.2V | |
| 6. Rapid Charge Current | 1C (2200mA) | |
| 7. Standard Discharge | 0.2C (440mA) Cut-off: 2.5V | |
| 8. Max. Discharge Current | 3C (6600mA) | |
| 9. Weight | 46.0 ± 1.0g | |
| 10. Max. Dimension | Ø18.6 × 65.3mm | |
| 11. Charge Temperature | Temperature | Max. Charge |
| 0–10°C | 0.2C (440mA) | |
| 10–20°C | 0.5C (1100mA) | |
| 20–45°C | 1C (2200mA) | |
| 12. Discharge Temperature | Temperature | Max. Discharge |
| −20–0°C | 0.2C (440mA) | |
| 0–10°C | 0.5C (1100mA) | |
| 10–45°C | 3C (6600mA) | |
| 45–50°C | 1C (2200mA) | |
| 13. Storage Temperature | 1 Month: −20~50°C | |
| 6 Months: −20~45°C | ||
| 1 Year: −20~25°C | ||
| 14. Overheat Protection | Discharge stops at 70°C surface temperature. | |
A:Single 18650 battery cell can’t reach 9900mAh.If it is a 18650 battery pack with 9900mAh, you can charge same way as 18650 2200mah 3.7v,but the charging time would be 4 times longer than 2200mAh cells.
A: Due to the internal self-discharge rate, the 18650 3.7V 2200mAh battery should be charged per 6 months.Otherwise,the battery will be over-discharged to die.
A: 2200mAh means the battery capacity.We have the high drain current version and the cells can support max 30C(66A) discharge rate.
