Built for Elite EV Performance
The TENPOWER INR21700-50XG is the most powerful tabless 21700 cell on the market.
Key Features
- 40A continuous / 90A pulse discharge
- 5000mAh nominal
- Tabless design — lower resistance, better thermals
- 600 cycle life @ 40A
Technical Specifications
| Specification | Value |
|---|---|
| Model | INR21700-50XG |
| Manufacturer | Tenpower |
| Format | 21700 |
| Nominal Capacity | 5000mAh |
| Nominal Voltage | 3.6V |
| Continuous Discharge | 400A tested / 90A with cut-off |
| Pulse Discharge (3s) | 140A |
| Max Charge Current | 15A |
| Internal Resistance | ≈4mΩ |
| Chemistry | INR |
Safety Warning for Lithium Battery Usage
Customers should have a clear understanding of lithium battery handling and safety before making a purchase. Lithium batteries are highly sensitive and may pose fire, burn, or explosion risks if improperly handled. Always charge batteries on fire-resistant surfaces, and never leave them charging unattended.
- Not for Use in E-Cigarettes or Similar Devices
- Risk of Fire and Explosion: Misuse can cause batteries to ignite, explode, or release harmful gases.
- Always Use in a Protected Pack with appropriate BMS circuitry.
- Proper Storage and Handling: Store in protective cases, away from metal items.
- Inspection Prior to Use: Do not use batteries with damaged wrappers or visible damage.
- Follow Manufacturer Charging Specs: Avoid overcharging or over-discharging.
- Heat and Water Precautions: Do not expose to high temperatures or liquids.
- Assembly: Batteries should only be spot welded; do not solder directly onto terminals.
For Resellers: Please ensure all safety information is passed along to end users.
Cell Specification
| Item | Specification and comments |
|---|---|
| Model | INR21700-50XG – cylindrical lithium-ion rechargeable cell |
| Nominal capacity | 5000mAh – Charge: 0.5C (2.5A) to 4.2V, 100mA cut-off; Discharge: 0.2C (1000mA) to 2.5V cut-off, 25±3°C |
| Minimum capacity | 4950mAh – same standard charge/discharge conditions as nominal capacity |
| Internal impedance (AC 1kHz) | ≈4mΩ at 25±3°C, 30% SOC |
| Standard charge | CCCV, 2.5A, 4.20V, 100mA cut-off (25±3°C) |
| Nominal voltage | 3.6V |
| Max. charging current | 15A |
| Max. continuous discharge current | 40A (without temperature cut-off); 90A with 75°C temperature cut-off |
| Pulse discharge current | 140A for 3s |
| Discharge cut-off voltage | 2.5V |
| Cycle life | Capacity ≈60% of initial after 500 cycles: Charge 6A, 4.2V CCCV 100mA cut-off @RT; Discharge 40A to 2.5V or 75°C cut-off @RT |
| Cell weight | 75.0g max |
| Cell dimension | Height ≈70.50mm; Diameter ≈21.50mm |
| Operating ambient temperature | Charge: 0~45°C; Discharge: -20~60°C |
| Cell surface temperature (operating) | Charge: 0~60°C (recommended recharge release <45°C); Discharge: -20~80°C (recommended re-discharge release <60°C) |
| Storage temperature | 1 year: -20~25°C; 3 months: -20~45°C; 1 month: -20~60°C (ex-factory state <30% SOC, capacity recovery ≈90% of standard discharge) |
| Storage humidity | ≈60% |
Reviews
There are no reviews yet.