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eFest Slim K2 Dual Battery Charger


The Efest Slim K2 is a portable Li-ion battery charger with a Micro USB charging port. It has a fast charging mode that is 1.0A and can accept lithium batteries in various sizes. The Efest Slim K2 features reverse polarity protection, activation function, auto-detect charging function, over-charging protection, and short circuit protections.  Each slot on the Efest Slim K2 Charger monitors batteries separately and has a convenient LED indicator that displays battery life.

Product Specifications:

  • AC Input Power AC 100-240V 50/60Hz
  • DC Output Power DC 5V 2A
  • Auto Cut-Off Voltage 4.20±0.05V
  • Standby Current <20mAh
  • Auto Recharge Voltage 4.10±0.10V
  • Storage Temperature -40℃~+70℃
  • DC Input Power DC 5V 2A
  • 1A CC Current <100mAh
  • CV Cut-Off Current < 100mAh
  • Activation Current 50mA~100 mA
  • Operation Temperature 0℃~40℃

Do NOT leave batteries charging unattended/overnight!

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