Shenzhen Jianheng Technology Co., Ltd.
| Delivery Time | 3 ~ 7 days for storage |
| Payment Terms | TT,L/C,Western Union |
| Name | 3.6 Volt Battery |
| Battery Type | 3.6V 4000mAh Rechargeable |
| ODM | Free custom design for packs |
| Positive Electrode Material | NCA (Nickel Cobalt Aluminum) |
| Cycle Life | 600+ cycles |
| Charging/ Discharging | 8A/40A |
| Operating Temperature | -40°C~60°C |
| High energy density | 209Wh/kg |
| Brand Name | OiD |
| Model Number | INR21700L40A40 |
| Certification | BIS, KC, BSMI, CB, UL, CCC |
| Place of Origin | China |
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Product Specification
| Delivery Time | 3 ~ 7 days for storage | Payment Terms | TT,L/C,Western Union |
| Name | 3.6 Volt Battery | Battery Type | 3.6V 4000mAh Rechargeable |
| ODM | Free custom design for packs | Positive Electrode Material | NCA (Nickel Cobalt Aluminum) |
| Cycle Life | 600+ cycles | Charging/ Discharging | 8A/40A |
| Operating Temperature | -40°C~60°C | High energy density | 209Wh/kg |
| Brand Name | OiD | Model Number | INR21700L40A40 |
| Certification | BIS, KC, BSMI, CB, UL, CCC | Place of Origin | China |
| High Light | 600 Cycles 3.6 Volt Battery ，40A Discharge 4000mAh 21700 Battery ，4000mAh 21700 Battery High Capacity | ||
INR21700L40A40 3.6V 4000mAh 40A Discharge 600 Cycles 21700 Battery
Product Name:
INR21700L40A40 21700 Battery
Advantages:
Specifications:
| Parameter | Value |
| Model | INR21700L40A40 |
| Nominal Voltage | 3.6V |
| Nominal Capacity | 4000mAh |
| Positive Electrode Material | NCA (Nickel Cobalt Aluminum) |
| Negative Electrode Material | Graphite + Silicon |
| Dimensions (Diameter x Height) | ≤21.30 mm x ≤70.40 mm |
| Weight | ≤69.0g |
| Volume Energy Density | 574 Wh/L |
| Weight Energy Density | 209 Wh/kg |
| Internal Resistance | ≤13mΩ |
| Charging Cut-off Voltage | 4.20V ± 0.05V |
| Discharge Cut-off Voltage | 2.50V |
| Maximum Charging Current | 8.0A |
| Maximum Continuous Discharge Current | 40A |
| Terminal Type | Standard 21700 Flat Top |
Cycle Life:
| Test Condition | Performance |
| 4A Charge / 4A Discharge | 600 cycles, capacity retention ≥60% |
| 6A Charge / 10A Discharge | 400 cycles, capacity retention ≥50% |
Discharge Curve:
Operating Temperature Range:
| Parameter | Range |
| Charging Temperature | 0°C to 50°C |
| Discharging Temperature | -40°C to 75°C |
Certifications:
BIS, KC, BSMI, CB, UL, CCC
Key Features:
Applications:
Usage Warnings & Precautions:
Storage Guidelines:
Warranty & Disclaimer:
This product is covered by a limited warranty against manufacturing defects. The warranty does not cover damage caused by misuse, improper handling, or unauthorized modifications. Always follow the manufacturer’s guidelines for safe and optimal use.
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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