Key Features
- USB Type-C Power Supply: Universal connectivity works with standard USB-C adapters, power banks, or car chargers for versatile on-the-go charging
- HD LCD Display: Large crystal-clear screen shows real-time data for all four independent slots — current charge level, cell voltage, and selected charging current; auto-off after 30 seconds of inactivity saves energy
- Variable Charging Currents: Choose between 500 mA, 1000 mA, or 2000 mA per slot via intuitive soft switch; achieves up to 4 A total with a capable 5 V / 3 A power supply
- Ultra-Fast Dual-Slot Charging: Slots 2 and 3 support 2 A ultra-fast charging, significantly reducing wait times
- Deep Discharge Recovery: Intelligent activation feature safely reactivates deeply discharged cells (from 0.6 V), potentially reviving seemingly dead batteries
- Wide Battery Compatibility: Supports 3.6 V and 3.7 V Li-Ion cells including 18650, 21700, and 26650 formats, up to 78 mm in length
- Multi-Stage Protection: Integrated reverse-polarity protection, overcharge protection, and automatic cut-off at 4.20 V keep your batteries safe
- Automatic Recharge: Detects when cell voltage drops below 4.10 V and initiates a recharge cycle automatically, ensuring your spares are always ready
- Durable Build: Modern, robust housing designed for long-lasting use and optimal power transfer
Technical Specifications
| Parameter | Detail |
|---|---|
| Model | Efest LUC V4 USB Type-C |
| AC Input | AC 100–240 V, 50/60 Hz |
| DC Input | DC 5 V / 2 A |
| DC Output | DC 5 V / 2 A |
| Input Port | USB-C |
| CC Charging Current (4 × 0.5 A Mode) | 500 mA ± 5% (per slot) |
| CC Charging Current (4 × 1.0 A Mode) | 1000 mA ± 5% (per slot) |
| Auto Cut-Off Voltage | 4.20 V ± 0.05 V |
| Auto Cut-Off Current | 50 mA ± 10 mA |
| CV Cut-Off | < 10% max current |
| Standby Current | < 20.0 mA |
| Activation Current | 10 mA – 50 mA |
| Ripple / Output Load Voltage Ripple | < 120 mV |
| Auto-Recharge Voltage | 4.10 V ± 0.10 V |
| Operating Temperature | 0 °C – 40 °C |
| Storage Temperature | -40 °C – +70 °C |
Package Contents
- 1 x Efest LUC V4 USB Type-C Charger
