Shenzhen Jianheng Technology Co., Ltd.
| Payment Terms | L/C,T/T,Western Union |
| Supply Ability | 100000 |
| Delivery Time | 3 ~ 30 days |
| Packaging Details | Carton |
| Name: | 21700 Battery |
| ODM: | Free Custom Design For Packs |
| Capacity: | 6000mAh (nominal), 4400mAh (minimum) |
| Cathode: | Lithium Nickel Manganese Cobalt Oxide (Li-NMC) |
| Type: | Cylindrical Rechargeable Li-ion Cell |
| Voltage: | 3.6V (nominal), 4.2V (charge cut-off), 2.75V (discharge cut-off) |
| Charge: | 0.5C standard (3000mA), 1C max (6000mA) |
| Discharge | 1C standard (6000mA), 2C max (12000mA) |
| Operating Temperature | Charge: 0°C to 45°C; Discharge: -20°C to 60°C |
| Cycle Life: | 500 cycles (≥70% capacity) |
| Weight: | ≤75g |
| Internal Resistance | ≤25mΩ (AC 1000Hz) |
| Dimensions | 21.65x 70.95±0.2mm |
| Brand Name | OiD |
| Model Number | 21700-6000 |
| Certification | Complies with UN38.3, CE, RoHS, and IEC 62133 safety standards. |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C,T/T,Western Union | Supply Ability | 100000 |
| Delivery Time | 3 ~ 30 days | Packaging Details | Carton |
| Name: | 21700 Battery | ODM: | Free Custom Design For Packs |
| Capacity: | 6000mAh (nominal), 4400mAh (minimum) | Cathode: | Lithium Nickel Manganese Cobalt Oxide (Li-NMC) |
| Type: | Cylindrical Rechargeable Li-ion Cell | Voltage: | 3.6V (nominal), 4.2V (charge cut-off), 2.75V (discharge cut-off) |
| Charge: | 0.5C standard (3000mA), 1C max (6000mA) | Discharge | 1C standard (6000mA), 2C max (12000mA) |
| Operating Temperature | Charge: 0°C to 45°C; Discharge: -20°C to 60°C | Cycle Life: | 500 cycles (≥70% capacity) |
| Weight: | ≤75g | Internal Resistance | ≤25mΩ (AC 1000Hz) |
| Dimensions | 21.65x 70.95±0.2mm | Brand Name | OiD |
| Model Number | 21700-6000 | Certification | Complies with UN38.3, CE, RoHS, and IEC 62133 safety standards. |
| Place of Origin | China | ||
| High Light | 4500mAh Capacity 21700 Battery ，3.6V Nominal Voltage 21700 Lithium-Ion Battery ，500 Cycles Life 21700 Li-ion Cell | ||
This specification outlines the technical parameters and characteristics of a high-performance cylindrical 21700 lithium-ion rechargeable cell with a nominal capacity of 6000mAh. Designed for reliability and high-drain applications, this cell offers excellent energy density and cycle life.
| Parameter | Specification |
|---|---|
| Model | 21700 |
| Nominal Capacity | 6000 mAh |
| Minimum Capacity | 5850 mAh |
| Nominal Voltage | 3.6 V |
| Charge Cut-off Voltage | 4.2 V |
| Discharge Cut-off Voltage | 2.5 V |
| Standard Charge Current | 0.5C (3000 mA) |
| Standard Discharge Current | 1C (6000 mA) |
| Approx. Weight | ≤ 75 g |
| Cell Color | Light Purple |
| Parameter | Specification | Conditions |
|---|---|---|
| Energy Density | 296 Wh/kg | |
| Internal Impedance | ≤ 25 mΩ | AC 1kHz |
| Charging Cut-off Current | ≥ 0.02C (120 mA) |
| Temperature Range | Maximum Charge Current |
|---|---|
| 15°C to 45°C | 0.7C (4200 mA) |
| 5°C to 15°C | 0.5C (3000 mA) |
| 0°C to 5°C | 0.1C (600 mA) |
| Temperature Range | Maximum Discharge Current |
|---|---|
| 0°C to 35°C | 2C (12000 mA) |
| -20°C to 0°C | 1C (6000 mA) |
| 35°C to 45°C | 1C (6000 mA) |
| 45°C to 60°C | 0.5C (3000 mA) |
| Property | Specification |
|---|---|
| Cell Diameter | 21.65 ± 0.2 mm |
| Cell Height | 70.95 ± 0.2 mm |
| Weight | ≤ 75 g |
| Mode | Temperature Range |
|---|---|
| Charge | 0°C to 45°C |
| Discharge | -20°C to 60°C |
| Storage | -20°C to +40°C (≤ 3 months) |
| Discharge Rate | Current | Efficiency |
|---|---|---|
| 0.2C | 1200 mA | 100% |
| 0.5C | 3000 mA | ≥ 95% |
| 1C | 6000 mA | ≥ 93% |
| 2C | 12000 mA | ≥ 90% |
| Temperature | Efficiency | Cut-off Voltage |
|---|---|---|
| 25°C | 100% | 2.5V |
| 55°C | ≥ 95% | 2.5V |
| -20°C | ≥ 70% | 2.2V |
500 cycles at 0.5C charge / 1C discharge (4.2V - 2.75V) while maintaining ≥70% of initial capacity.
This cell is designed to meet stringent international safety standards. It has passed tests including:
The cell is compliant with RoHS and relevant environmental directives for hazardous substance restrictions.
This high-capacity 21700 cell is suitable for a wide range of applications, including:
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler
Year Established:
2020
Total Annual:
15000000-20000000
Employee Number:
300~500
Ecer Certification：
Verified Supplier
Jianheng Technology (Shenzhen) Co., Ltd. is located in Shenzhen, China’s “City of Innovation” — home to global technology leaders such as Huawei, BYD, DJI, ZTE, and Tencent. Like these renowned companies, Jianheng Technology is driven by a commitment to independent techn... Jianheng Technology (Shenzhen) Co., Ltd. is located in Shenzhen, China’s “City of Innovation” — home to global technology leaders such as Huawei, BYD, DJI, ZTE, and Tencent. Like these renowned companies, Jianheng Technology is driven by a commitment to independent techn...
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