SunPower INR21700-4000 High-Rate Li-ion Battery
The SunPower INR21700-4000 is engineered for high-drain devices, featuring 4000mAh capacity, 40A continuous discharge, and 80A pulse current (2s). It addresses critical industry challenges:
- Short runtime in high-power tools – 25% longer operation with optimized energy density;
- Voltage drop under heavy loads – Ultra-low internal resistance (≤13mΩ) minimizes power loss;
- Performance degradation in harsh environments – Operates reliably from -20℃ to 75℃ with 87% efficiency at -20℃.
Key Specifications & Advantages
- Unmatched Power Delivery
- 40A Continuous Discharge: Ideal for industrial drills, lawn mowers, and AGVs;
- 12C Burst Discharge: 80A pulse current ensures instant energy release with <8% voltage drop.
- Military-Grade Safety
- UL1642/IEC62133 Certified: Passes 130℃ thermal abuse and 13kN crush tests;
- Intelligent Electrolyte: Fluorinated solvents prevent thermal runaway (300 cycles @80% capacity).
Technical Specifications (Datasheet)
| Parameter | Value |
|---|---|
| Model | INR21700-4000 |
| Nominal Voltage | 3.7V |
| Charge Voltage | 4.20V±0.05V |
| Standard Charge | 2A (0.5C) |
| Max. Charge Current | 6A (1.5C) |
| Max. Discharge Current | 40A |
| Weight | ~66.8g |
| Cycle Life | 300 cycles (≥80% retention) |
Request Samples Now!
Elevate your products with SunPower INR21700-4000 – cost-effective and ruggedized for industrial use. Enjoy free technical support and custom solutions (CID configurations, PVC color options).
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