SLIM K4 Charger is a intelligent charger that with a Type-C USB charging port. It is compatible with Lithium IMR 3.6V/3.7V batteries: 10440, 14500, 16340, 17340, 18350, 18490, 18500, 18650, 26500, 26650, 20700, 21700. LED indicator will show you the status of charger: indicator turns blue in standby mode/full charged, white color in charging. SLIM K4 Charger is designed with some smart functions, such as auto-detect charging, monitors and charges each slot independently, low voltage smart activation recovery function, 0V activation recovery function. Besides, it is safe for you to use with built-in intelligent protection chip.

Compatible with:

• 3.6V/3.7V Lithium Ion IMR Batteries – 10440, 14500, 16340, 17340, 18350, 18490, 18500, 18650, 20700, 21700, 26500, 26650

Technical stuff:

• Input – AC 100V-240V 50/60Hz or DC 5V 2A
• Output – 4.2V +/-.05V

What’s in the box:

• Efest SLIM K4 LED battery charger
• USB cable
• User Manual and Warranty Card
• Scratch-off validation serial number