Product Description
This 18650 rechargeable lithium ion battery is intended primarily for emergency lighting and related portable electronics that require dependable power sources. Its compact cylindrical format supports integration into devices such as flashlights, medical handheld units, and safety equipment. The nominal voltage of 3.7 volt lithium ion battery specification aligns with typical industry standards for stable energy provision in these target applications.
Manufactured by a lithium ion battery supplier adhering to CE, RoHS, UN38.3, and UL certifications, the battery maintains consistent performance through professional CC/CV charge-discharge methods. It delivers 2200mAh capacity at 3.7 volts, with a continuous discharge current rated at 1C and a peak discharge current of 3C. The battery's structure ensures low internal resistance and a cycle life exceeding 800 full charge-discharge cycles, supporting repeated use in demanding operational scenarios.
This rechargeable lithium ion battery suits OEM and replacement needs for emergency lighting, solar-powered safety devices, and portable medical or communication tools. Its combination of electrical stability, safety certifications, and size constraints facilitate use in products requiring reliable backup power during outages or mobile operations. Bulk sourcing of this li-ion lithium battery is relevant for distributors or manufacturers deploying standard cylindrical cells in emergency or portable power supply solutions.

| Item | Specifications | Remark |
| Model No. | LI18650-2200-1S1P | |
| Nominal Voltage | 3.7V | |
| Nominal Capacity | 2200mAh | @0.2C standard charge&discharge |
| Dimensions | 18.5*69.5mm max | Diameter*Height |
| Cycle Life | ≥800 times | |
| Charge Method | CC/CV with professional charger | |
| Charge Cut-off Voltage | 4.2V | |
| Discharge Cut-off Voltage | 2.75V | |
| Standard Charge Current | 0.2C | |
| Standard Discharge Current | 0.2C | |
| Max Continuous Charge Current | 1C | 10℃≤Temp<45℃ |
| Continuous Discharge Current | 1C | |
| Peak Discharge Current | 3C | |
| Recommended Operation Ambient Temperature | Charge: 0~45℃ Discharge:-20~60℃ | |
| Storage Temperature | -20~25℃ | 12 months |
| -20~45℃ | 3 months | |
| -20~60 ℃ | 1 month | |
| Internal Resistance | ≤20mΩ | |
| Weight | Approx. 48g |


