Efest SLIM K4 USB-C Smart 4-Slot Lithium IMR Battery Charger authentic / 2A charging current / multiple protections ↓ details & specifications
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Product Type Battery Chargers
Color Black
Ports USB Type C
Package Type Retail
Package Contents 1*Battery Charger, 1*USB Type C Cable, 1*User Manual
Dimensions us | metric
Depth 29 mm
Height 117 mm
Width 107 mm
Product Weight 100 g
SKU 9755939
DATE LISTED 5/5/2022
  • Input power: DC 5V 2A
  • 2*1A CC current: 2000mA+/-10%
  • 1*1A CC current: 1000mA+/-10%
  • 4*0.5A/3*0.5A CC current: 500mA+/-10%
  • Auto cut-off voltage: 4.20V+/-0.05V
  • CV cut-off current: <100mA
  • Standby current: <20mA
  • Activation current: 50mA-100mA
  • Auto recharge voltage: 4.10+/-0.10V
  • Operation temperature: 0 to 40'C
  • Storage temperature: -40 to 70'C
  • Efest SLIM K4 battery charger comes with novel 7 languages packaging and user manual. Incredibly lightweight and conveniently portable.
  • Compatible with lithium IMR 3.6V/3.7V batteries: 10440, 18500, 14500, 18650, 16340, 26500, 17340, 26640, 18350, 20700, 18490, 21700.
  • After insert the battery to the slot correctly, SLIM K4 will charge the battery automatically in few seconds.
  • Indicator in standby mode/fully charged turns blue color, white color while in charging.
  • Auto-detect charging current: 2*1A/1*1a/4*0.5A/3*0.5A
  • Safe charging mode: CC & CV
  • Safe and convenient USB charger (5V 2A)
  • Monitors and charges each slot independently
  • Low voltage smart activation recovery function
  • 6 protection levels, built-in intelligent protection chip:
  • Short circuit protection
  • Automatic over-charging protection
  • Automatic over-discharging protection
  • Reverse polarity protection
  • 0V activation recovery function
  • Hardware and software double protection
  • Global insurance technical support with FCC, CE, RoHS certification
  • 7 languages version: EN/DE/FR/IT/ES/RU/JA
  • Please note: The batteries in the picture are not included

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