The Efest Slim K4 Charger is a compact 4-bay battery charger designed for users who need to charge multiple rechargeable batteries at the same time. With four independent charging slots, it can charge up to four compatible batteries simultaneously, making it a practical choice for everyday use.
The Slim K4 supports common rechargeable lithium-ion batteries up to 21700 size, including 18650 and 20700 batteries. Its Type-C input provides a convenient charging connection, while the LED indicators allow users to check the charging status of each battery at a glance.
Features:
1. 4-Bay Charging Design
Four independent charging slots allow up to four compatible batteries to be charged simultaneously.
2. Wide Battery Compatibility
Supports common rechargeable lithium-ion battery sizes up to 21700, including 18650 and 20700 batteries.
3. Type-C Charging Input
Equipped with a Type-C input and designed for convenient everyday charging.
4. LED Charging Indicators
Individual LED indicators display the charging status of each battery. When charging is complete, the corresponding indicator remains steady to indicate a full charge.
5. Multiple Safety Protections
Built-in protection functions help guard against overcharging, over-discharging, short circuits, overvoltage, and incorrect battery polarity.
6. Compact and Practical
The slim design makes the charger convenient for use at home, in the office, or while traveling.
Specifications
Charger Type: 4-Bay Battery Charger
Battery Type: Rechargeable Lithium-Ion Batteries
Compatible Battery Size: Up to 21700
Charging Bays: 4
Input: Type-C
Input Voltage: 5V
Input Current: 2A
Charging Indicator: LED
Protection: Overcharge Protection, Over-Discharge Protection, Short Circuit Protection, Overvoltage Protection, Reverse Polarity Protection
Battery: Not Included
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