Highstar INR21700 4000 lithium-ion batteries solve critical pain points like short runtime, voltage drop under heavy loads, and frequent replacements.
With 4000mAh capacity, 12C continuous discharge (48A), and 1000+ cycles, this cell ensures reliability for high-drain applications.
Key Features & Pain Points Solved
- High Capacity & Fast Charging: 4000mAh capacity (0.2C discharge) supports extended runtime. 1.5C charging (6A) reaches 80% SOC in 30 minutes, reducing downtime.
- 12C Continuous Discharge: 48A sustained output powers heavy machinery (e.g., industrial drills, EVs) without voltage sag.
- Long Cycle Life: 1000+ cycles with ≥80% capacity retention (25°C testing), slashing replacement costs.
- Extreme Temperature Resilience: Operates at -20°C to 60°C, ideal for Arctic solar farms or desert EVs
- Safety & Efficiency: Built-in PTC protection and venting mechanisms prevent overcharge/short-circuit risks. Low AC internal resistance (≤12mΩ) minimizes heat generation.
Technical Specifications of Highstar INR21700 4000
| Parameter | Specification |
|---|---|
| Nominal Capacity | 4000mAh (0.2C discharge) |
| Continuous Discharge | 48A (12C) |
| Pulse Discharge (2s) | 50A |
| Cycle Life | 1000+ cycles (≥80% capacity) |
| Operating Temperature | Charge: 0°C–50°C; Discharge: -20°C–60°C |
| Weight | ≈69g |
| Dimensions | 21.4mm (D) × 70.6mm (H) |
Applications
- Electric Vehicles: E-bikes, scooters (high burst power).
- Power Tools: Drills, grinders (48A sustained output).
- Energy Storage: Solar ESS, UPS (long cycle life).
- Drones & Robotics: Heavy-lift operations.
Why Choose Highstar INR21700 4000?
Cost Efficiency: 1000 cycles vs. 300 cycles (standard cells) → 70% lower TCO.
Global Compliance: UL1642, UN38.3, and RoHS certified.
Bulk Order Offer (Min 100 units):
✅ 1500+ units: 12% discount + free shipping
✅ Custom BMS integration support
✅ Technical datasheet & safety guides
Contact immediately to obtain the latest quotation for Highstar INR21700 4000.








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