Tabless 21700 40XG Battery
| Model | INR21700-40XG |
| Nominal Capacity | 4000mAh |
| Charge: 0.5C(2A), 4.2V, 100mA cut-off | |
| Discharge: 0.2C(800mA), 2.5V cut-off | |
| 1C=4000mA | |
| Minimum Capacity | 4000mAh |
| Charge: 0.5C(2A), 4.2V, 100mA cut-off | |
| Discharge: 0.2C(800mA), 2.5V cut-off | |
| 1C=4000mA | |
| ACIR 1kHz | ≤3.5mΩ @25±3℃, 30%SOC |
| Standard Charge | CCCV, 2A, 4.2V, 100mA cut-off |
| Nominal Voltage | 3.6V |
| Max. Charge Current | 12A |
| Max. Continuous Discharge Current | 45A (without temperature cut off) |
| 90A (with 80℃ temperature cut off) | |
| Pulse Discharge Current | ≥160A, 5s |
| Discharge Cut-off Voltage | 2.5V |
| Cycle Life | Capacity≥60% initial capacity @600 cycles. |
| Charge: 6A, 4.2V, CCCV 100mA cut-off @RT | |
| Discharge: 40A, 2.5V or 75℃ cut-off @RT | |
| Operating Ambient Temperature | Charge: 0℃~45℃ |
| Discharge: -20℃~60℃ | |
| Operating Surface Temperature | Charge: 0℃~60℃ |
| Recommended recharge release ＜45℃ | |
| Discharge: -20℃~80℃ | |
| Recommended re-discharge release ＜60℃ | |
| Cell Weight | 70.0g Max. |
| Cell Dimension | Diameter: 21.50mm Max. |
| Height: 70.50mm Max. |
Tabless battery technology represents a significant architectural shift in cylindrical lithium-ion cell design, moving away from traditional "tabs" to a continuous contact system. In a standard battery, a small metal tab connects the internal electrode to the external casing, creating a bottleneck for electrical flow and a primary source of heat. In contrast, "tabless" designs utilize the entire edge of the electrode foil to conduct current, dramatically reducing internal resistance and improving thermal management.
The industry gained major momentum with the introduction of the Tesla 4680 Tabless cell, which proved that larger form factors could maintain high performance without overheating. By removing the tab, the 4680 tabless structure allows electrons to travel a much shorter distance, resulting in faster charging speeds and higher power output. This breakthrough has paved the way for smaller high-power formats, most notably the 21700 tabless cells now entering the market.
Manufacturers are now applying this logic to specialized high-performance models. For instance, the 21700-JP40, 21700-40PL and the 21700-45D leverage this architecture to provide extreme discharge rates for professional power tools and racing drones. Similarly, high-capacity versions like the 21700-50PL, 21700-50XG, 21700-50D and 21700-RS50 utilize tabless connections to balance high energy density with cooler operating temperatures. By eliminating the thermal constraints of traditional tabs, these cells offer a more reliable and efficient energy solution for the next generation of electric mobility and industrial applications.
The industry gained major momentum with the introduction of the Tesla 4680 Tabless cell, which proved that larger form factors could maintain high performance without overheating. By removing the tab, the 4680 tabless structure allows electrons to travel a much shorter distance, resulting in faster charging speeds and higher power output. This breakthrough has paved the way for smaller high-power formats, most notably the 21700 tabless cells now entering the market.
Manufacturers are now applying this logic to specialized high-performance models. For instance, the 21700-JP40, 21700-40PL and the 21700-45D leverage this architecture to provide extreme discharge rates for professional power tools and racing drones. Similarly, high-capacity versions like the 21700-50PL, 21700-50XG, 21700-50D and 21700-RS50 utilize tabless connections to balance high energy density with cooler operating temperatures. By eliminating the thermal constraints of traditional tabs, these cells offer a more reliable and efficient energy solution for the next generation of electric mobility and industrial applications.
| Tabless Models | Reference |
| INR18650-JP30 | 18650 Tabless Battery |
| INR18650-30PL | Tabless 18650 Battery |
| INR18650-30XG | Tabless Battery 18650 |
| INR21700-RS40 | 21700 Tabless Cell |
| INR21700-40PL | 21700 Tabless Battery |
| INR21700-JP40 | Tabless 21700 Cells |
| INR21700-40XG | Tabless 21700 40XG Battery |
| INR21700-40P | Tabless Lithium Cell |
| INR21700-42P | Tabless Li ion Cells |
| INR2170-45D | Tabless 21700 Battery |
| INR2170-50D | Tabless 21700 50D Battery |
| INR21700-50PL | Tabless 21700 |
| INR21700-RS50 | 21700 Tabless |
| INR21700-50XG | 21700 Tabless Cells |
| INR21700-RH60 | Tabless Cells 21700 |
| 4680 Tesla Battery | 4680 Tabless Battery |
Since its inception in 2006, Tenpower has ascended to a leadership position within the global energy storage sector, specializing in the engineering and mass production of high-performance cylindrical lithium-ion cells. With a remarkable track record of over 10 billion units shipped to date, the company serves as a vital tier-one partner for manufacturers in the power tool, micro-mobility, and smart appliance industries. This sustained growth is anchored in a "quality-first" corporate philosophy and a robust commitment to electrochemical research and development.
A primary driver of the company's current market success is the continuous evolution of the Tenpower 21700 battery platform. By optimizing the 21700 form factor, Tenpower has managed to bridge the gap between high energy density and extreme power delivery. A clear example of this technical prowess is the Tenpower 21700 40XG, a cell specifically designed to meet the rigorous discharge requirements of professional-grade industrial equipment and high-drain power tools. This model exemplifies the brand's ability to maintain thermal stability while delivering consistent, high-current output.
Pushing the boundaries of the series even further, the Tenpower 21700 50XG represents the pinnacle of their current high-capacity power line. Integrating advanced tabless-like design elements, the 21700-50XG achieves a 5000mAh capacity while supporting a staggering 40A continuous discharge rate. This makes it an ideal solution for demanding applications such as electric motorcycles, where both longevity and peak performance are non-negotiable. Through rigorous quality control and scalable manufacturing, Tenpower remains dedicated to providing the reliable, high-power solutions necessary to drive the next generation of global innovation.
A primary driver of the company's current market success is the continuous evolution of the Tenpower 21700 battery platform. By optimizing the 21700 form factor, Tenpower has managed to bridge the gap between high energy density and extreme power delivery. A clear example of this technical prowess is the Tenpower 21700 40XG, a cell specifically designed to meet the rigorous discharge requirements of professional-grade industrial equipment and high-drain power tools. This model exemplifies the brand's ability to maintain thermal stability while delivering consistent, high-current output.
Pushing the boundaries of the series even further, the Tenpower 21700 50XG represents the pinnacle of their current high-capacity power line. Integrating advanced tabless-like design elements, the 21700-50XG achieves a 5000mAh capacity while supporting a staggering 40A continuous discharge rate. This makes it an ideal solution for demanding applications such as electric motorcycles, where both longevity and peak performance are non-negotiable. Through rigorous quality control and scalable manufacturing, Tenpower remains dedicated to providing the reliable, high-power solutions necessary to drive the next generation of global innovation.
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