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Efest Slim K2 - 2 Bay Smart Charger

Retail Price: $13.95 (You save $4.00)
Customer Rating:
5 Stars
In Stock

Product Description

The Efest Slim K2 Charger is a high quality, cost-efficient and portable 18650 battery charger. The Efest Slim K2 Charger is a dual slot charger with a Micro USB input and charges at 1A. Each slot is monitored independently to provide the most efficient charge. The LED indicates when your battery is charging and when the battery is fully charged. The Efest Slim K2 Charger features reverse polarity, short circuit, overcharge protection and many more safety features. The Efest Slim K2 Charger can charge different types of 3.6V/3.7V lithium batteries commonly used in electronic cigarettes, flashlights, electric tools, and more.

Facts & Features

  • Compatible with: 10440, 14500, 14650, 16340, 16650, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 26500, 26650 sized Batteries
  • Fast charging: 1.0 amp charge
  • Portable Design with Quality Piano Springs
  • Battery Life LED Indicator Light
  • Dual Slot 5V/1A Micro USB Charger
  • Reverse Polarity Protection
  • Activation Function
  • Auto Detect Charging Function
  • Over Charging Protection
  • Short Circuit Protection

What's Included

  • 1-Qty EFest Slim K2– 2 Bay Smart Charger
  • 1-Qty Micro USB cable
  • 1-Qty Warranty card
  • 1-Qty User Manual

Safety & Usage

  • Use special caution when handling Li-Ion cells, they are very sensitive to charging characteristic and can explode or burn if mishandled.
  • Please make sure the sure the use has enough knowledge of Li-Ion rechargeable batteries in charging, discharging and assembly before use.
  • Always charge in and or on a fire-proof surface
  • Never leave charging batteries unattended/overnight
  • All IMR Batteries Regardless of Which Brand Are All Non-Protected Batteries. Due to the safety inherent in IMR cells there is no protection circuitry added or built in.
  • Efest recommends the maximum charge voltage is 4.25 volts and the battery should never be discharged below 2.5 volts or battery cycle-life/performance will be reduced.
  • Check the voltage of your battery right out of the charger using a multimeter or Efest charger to make sure they are at 4.2V when fully charged.
  • Prior to each use, check the battery for signs of wear and damage. If in any doubt please dispose of the battery
  • Always handle batteries with care and do not drop them
  • Do not over-discharge/overcharge
  • Never Puncture or Poke Battery
  • Store the batteries on a safe and dry place
  • Dispose batteries correctly according to your state's laws and never just throw them into the trash
  • When charging keep the charger away from items that can cause a fire
  • Recharge empty batteries (resting voltage - 3.6V) as soon as possible. Leaving Li-Ion batteries in a discharged state will incur irreversible damage. (Capacity/Cycle Loss)

Warranty Information

Each EFest Battery Charger has been tested to ensure it performs correctly as well as been tested to ensure each battery charges. Please note, we do not accept returns and/ or exchanges on this item due to the nature of this product, therefore, for this item, all sales are final. For more information please see our Terms & Returns Page. Feel free to ask us any further questions regarding this product by using our Contact Us page.

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Product Reviews

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  1. Excellent!!! Best Charger!! :D 5 Star Review

    Posted by on

    Arrived fast and was packaged excellently. I got this charger for my Snowwolf Mfeng 18650 batteries. It's the only charger I will use it has many great features and is excellent quality. It charges the batteries safely and fast and doesn't overcharge the batteries. I highly recommend this to anyone I'm highly satisfied and happy :)