Sunpower INR18650 3500: High-Capacity Powerhouse for Demanding Applications
Unlock superior performance with Sunpower INR18650 3500 lithium-ion battery. Engineered for high-drain devices, this cell delivers 3,500mAh nominal capacity and exceptional 20A max continuous discharge (with 80°C thermal cutoff), outperforming standard 18650s in power tools, EVs, and premium flashlights.
Key Advantages:
✅ Ultra-High Drain: Sustain 15A (no temp cut) or 20A (with safety cutoff) – ideal for power-hungry equipment.
✅ Pulse Power: 50A pulse discharge (2s) for surge-intensive applications.
✅ Extreme Environment Ready: Operates at -20°C~60°C with ≥70% capacity retention at -20°C.
✅ Longevity: 500+ cycles at 3.5A (80% capacity retention).
Vs. Competitors (18650 3500mAh Class):
| Brand | Continuous Discharge | Pulse Current | Low-Temp Performance |
|---|---|---|---|
| Sunpower | 20A (thermal protected) | 50A | ≥70% @ -20°C |
| Samsung 35E | 8A | 13A | ≥65% @ -20°C |
| LG MJ1 | 10A | 20A | ≥60% @ -20°C |
| EVE 18650-35V | 10A | 25A | ≥68% @ -20°C |
Why Engineers Choose Sunpower:
- Robust safety certifications (UL/IEC62133 compliant)
- Tight pack consistency (voltage Δ≤10mV, capacity Δ≤1%)
- 12-month warranty with factory activation (3.5V–3.65V)
Ready to upgrade your power solution? Contact us for bulk pricing and technical datasheets!
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