Efest Slim K4 USB-C Charger

• Charger Does Not Come with Batteries
• Dimensions: 118mm x 65mm x 34mm
• Compatible with: 10440 / 14500 / 16340 - 17340 / 18350 / 18490 / 18500 / 18650 / 26500 / 26650 / 20700 / 21700
• Input Power: 100 - 240 Volts, 50 / 60Hz
• Auto Cut-off Voltage 4.2V
• CV Cut-off Current: <10%
• Standby Current <20mA
• Activation Current: 50mA - 100mA
• Operation Temperature: 0°C - 40°C
• Storage Temperature:  -40°C - 70°C
• Short Circuit Protection
• Automatic Over-charging Protection
• Automatic Over-discharging Protection
• Reverse Polarity Protection
• 0V Activation Recovery Function
• Hardware and Software Double Protection