Key Features
- Intelligent 4-Bay Charging: Auto-detects and independently monitors each battery slot for optimal charging performance
- USB Type-C Power Input: 5V 2A USB-C port for fast and convenient power delivery
- LED Status Indicators: Blue light indicates standby mode or fully charged; white light shows active charging
- Smart Battery Recovery: Low voltage smart activation and 0V recovery function to revive deeply discharged cells
- Comprehensive Safety Protections: Short circuit, over-charging, over-discharging, and reverse polarity protection with hardware and software double safeguards
- Ultra-Portable Design: Incredibly lightweight ABS fire-retardant construction for easy carry
- Wide Battery Compatibility: Supports 3.6V/3.7V Lithium IMR batteries including 10440, 14500, 16340, 17340, 18350, 18490, 18500, 18650, 26500, 26650, 20700, and 21700
Technical Specifications
| Parameter | Detail |
|---|---|
| Input Voltage | 5V |
| Input Current | 2A |
| Charging Port | USB Type-C |
| Compatible Batteries | 10440, 14500, 16340, 17340, 18350, 18490, 18500, 18650, 26500, 26650, 20700, 21700 |
| Battery Chemistry | Lithium IMR 3.6V/3.7V |
| Charging Mode | CC & CV |
| LED Indicator | Blue (standby/full charged), White (charging) |
| Material | High quality ABS fire-retardant |
| Safety Features | Short Circuit, Over-charging, Over-discharging, Reverse Polarity, 0V Activation Recovery |
Package Contents
- 1 X Efest Slim K4 Charger
- 1 X Manual Card
