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Efest Slim K2 Channel Battery Charger

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Product Description

The Efest Slim K2 Channel Battery Charger is a practical solution for charging two batteries simultaneously. Its intelligent charging technology adapts to different battery types, with LED indicators to keep you informed. The compact design is travel-friendly, fitting easily into pockets or travel kits.

Safety features include overcharge protection, short circuit prevention, and reverse polarity protection. The spring-loaded bays accommodate batteries of various sizes. Whether you're a vaper or tech user, the Efest Slim K2 offers reliable and efficient charging without unnecessary frills. Keep your devices ready with this straightforward and functional battery charger.

Additional Features:

  • Fast Charging Mode: 1.0A
  • Auto Detect Charging Function
  • Low Voltage Activation Function
  • Short Circuit Protection
  • Reverse Polarity Protection
  • Over Charging Protection
  • Piano Wire Spring Provides Smooth Sliding Action - 15000+ Tensile Test
  • Chromium Plated Steel Cathode Insures Low Resistance While Achieving A More Precise Charging Voltage


  • Input: DC 5V 1A
  • Standby Current: <20mA
  • Activation Current: 50mA - 100mA
  • 1.0A CC Current: 1000mA ± 10%
  • Auto Recharge Voltage: 4.10V ± 0.10V
  • Auto Cutoff Voltage: 4.20V ± 0.05V
  • CV Cutoff Current: <100mA
  • Operation Temperature: 0°C ~ 40°C

Shipping Time

We will ship your order within 1-2 business days. You should receive your Smoky Box within 3-7 business days after your order is processed, depending on your location. We only ship within the Continental United States.

Return Policy

We offer returns or exchanges within seven days of receiving your order as long as the product is unused. Click here to request a return or exchange.

Efest Slim K2 Channel Battery Charger


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