Key Features
- Large 4000mAh capacity for extended runtime
- Reliable 10A output for consistent power delivery
- Optimized for long-lasting performance
- Rechargeable lithium-ion chemistry
- Standard 18650 flat top compatibility
Overview
The Efest 18650 4000mAh battery delivers impressive runtime and dependable output in a compact 18650 format. Designed for users who value longevity and efficiency, this cell provides steady 10A performance while reducing recharge frequency. It’s an excellent choice for applications that demand reliable power over extended periods.
Applications / Uses
- Portable lighting solutions
- Rechargeable consumer electronics
- Backup power systems
- Battery-powered accessories
- Energy-efficient device builds
SPECIFICATIONS
| Manufacturer | Efest |
| Model | 18650 4000mAh 10A |
| Size | 18650 |
| Positive Terminal | Flat Top |
| Nominal Capacity | 4000mAh |
| Continuous Discharge Rating | 10A |
| Nominal Voltage | 3.7V |
| Maximum Voltage | 4.2V |
| Protected | No |
| Rechargeable | Yes |
| Cycle Life | 300+ cycles |
| Approx. Dimensions | 18.3mm × 65.0mm |
| Approx. Weight | 48g |