Key Features
- Intelligent 4-Bay Design: Independently monitors and charges up to four lithium IMR 3.6V/3.7V batteries simultaneously
- USB Type-C Charging: Equipped with a modern Type-C USB port for convenient and fast recharging of the charger itself
- LED Status Indicators: Blue light indicates standby or fully charged; white light shows active charging in progress
- Auto-Detect Charging: Automatically recognizes battery type and adjusts charging parameters accordingly
- Smart Recovery Functions: Supports low voltage smart activation and 0V activation recovery for depleted batteries
- Comprehensive Safety Protections: Built-in intelligent protection chip safeguards against short circuit, over-charging, over-discharging, and reverse polarity
- CC & CV Safe Charging Mode: Constant current and constant voltage charging for optimal battery health
- Lightweight and Portable: Designed for easy carrying and convenient use on the go
- Durable Construction: Made from high-quality ABS fire-retardant material with reliable electronic components
Technical Specifications
| Parameter | Detail |
|---|---|
| Compatible Batteries | Lithium IMR 3.6V/3.7V: 10440, 14500, 16340, 17340, 18350, 18490, 18500, 18650, 26500, 26650, 20700, 21700 |
| Input | USB Type-C (5V 2A) |
| Charging Mode | CC & CV |
| LED Indicator | Blue: Standby / Full charged; White: Charging |
| Material | High-quality ABS fire-retardant material |
| Safety Protections | Short Circuit / Over-charging / Over-discharging / Reverse Polarity / 0V Activation Recovery |
Package Contents
- 1 x Efest Slim K4 Charger
- 1 x Manual Card
