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SNEPOW high power 21700 rechargeable Li-ion cells have more advantages in capacity and performance. If your product requires a custom 21700 Li-ion battery pack, we can design the best solution for you. We will customize any size, capacity and shape of lithium battery pack according to your desired specification design. We will meet your different needs through our professional technology and services.
SNEPOW high power 21700 rechargeable Li-ion battery cells have obvious outstanding advantages in capacity and performance. It is larger than 18650 cells, providing greater capacity and higher discharge current, and it has high energy density, fast charging speed, low resistance, high discharge rate, long life and low cost. The battery cells can be widely used in low emission vehicles, solar storage systems, power tools, laptops, medical devices, electronic cigarettes, etc. 21700 battery pack specifications can be customized to meet your needs.
Advantages of lithium-ion batteries:
- Higher energy density.
- Lower cost.
- Lower weight.
- High discharge performance.
- Low energy consumption, in line with global low-carbon philosophy.
- Zero maintenance.
- The best alternative to lead-acid batteries.
- Longer cycle life.
- Lower self-discharge rate.
| SNE-C21700-4000 | |
| Nominal Capacity | 4000mAh -Charge: 0.5C(2A), 4.2V, 100mA cut-off -Discharge: 0.2C(800mA), 2.5V cut-off *1C = 4000mA |
| Minimum Capacity | 3950mAh -Charge: 0.5C(2A), 4.2V, 100mA cut-off -Discharge: 0.2C(800mA), 2.5V cut-off *1C = 4000mA |
| Internal Impedance at 1000 Hz | ≤ 12mΩ（25±3℃ ,30%SOC） |
| Standard Charge | CCCV, 2A, 4.2V, 100mA cut-of |
| Rated Charge | CCCV, 4A, 4.2V, 100mA cut-of |
| Nominal Voltage | 3.6V |
| Max. Charging Current | 6A |
| Charging Time | Standard Charge : 150 minutes Rated Charge:90 minutes (at 25±3° C) |
| Max. Continuous Discharge Current | 35A(with 80℃ cut-off) |
| Discharge Cut-off Voltage | 2.5 V |
| Weight | 69.0g Max. |
| Dimensions | Height : ≤ 70.35mm Diameter : ≤ 21.35mm |
| Operating Temperature | Charge : 0 to 50℃ (Recommended recharge recovery < 45℃ ) Discharge:-20 to 80℃ (Recommended re-discharge recovery < 60℃ ) |
| Storage temperature | 1 year:-20~25℃ (*) 3 month : -20~45℃ (*) 1 month: -20~60℃ (*) |
| SNE-C21700-4600 | |
| Nominal Capacity | 4600mAh |
| Minimum Capacity | 4550mAh |
| Nominal Voltage | 3.6V |
| Delivery Voltage | 3.50~3.58V |
| Charge Voltage | 4.2V±0.03V |
| Standard Charging Method | 0.2C constant current,4.2V constant voltage charge to 4.2V, continue charging till current decline to ≤ 0.01C |
| Fast Charge Current | 0.5C 2300mA |
| Standard Discharging Method | 0.2C constant current discharge to 2.75V |
| Cell AC Internal Impedance | ≤ 25mΩ |
| Weight | 67±2g |
| Maximum Charge Current | 1C 4600mA |
| Maximum Discharge Current | 3C 13800mA |
| Operation Temperature and Relative Humidity Range | Charge: 0~45℃ (60±25%R.H.) Discharge: -20~65℃ (60±25%R.H.) |
| Storage Temperature for a Long Time | -20~45℃ (60±25%R.H.) |
Inquiry Tips
This is to help you to understand more about what we can do, and most importantly, to know more about what will be the best solution for you when you are looking for batteries to support your product development or various projects.
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What type of battery you are looking for mainly, conventional lithium battery or solid-state battery？
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