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Efest Battery Chargers
Efest Battery Chargers
Efest Battery Chargers

Efest Battery Chargers

Regular price $7.99 $0.00 Unit price per

The Efest Slim K1 Charger is a high quality with a cost-efficient and portable design. The Efest Slim K1 Charger is a single slot charger with Micro USB input and charges at 1A. The LED indicates when your battery is charging and when the battery is fully charged.

The Efest Slim K1 Charger features reverse polarity, short circuit, overcharge protection and many more safety features. The Efest Slim K1 Charger can charge different types of 3.6V/3.7V lithium batteries commonly used in electronic cigarettes, flashlights, electric tools, and more.

Features and Specs:

  • Compatible with: 10440, 14500, 14650, 16340, 16650, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 21700, 26650
  • Portable Design with Quality Piano Strings
  • Battery Life LED Indicator Light
  • Single Slot 5V/1A Micro USB Charger
  • AC Input Power: AC 100~240V 50/60Hz
  • DC Output Power: DC 5V 1A
  • DC Input Power: DC 5V 1A
  • 1A CC Current: 1000mA (+/-10%)
  • Auto Cut-Off Voltage: 4.20 (+/-0.05V)
  • CV Cut-Off Current: <100mA
  • Standby Current: <20mA
  • Activation Current: 50mA~100mA
  • Auto Recharge Voltage: 4.10 (+/-0.10V)
  • Operation Temperature: 0C ~ 40C
  • Storage Temperature: -40C ~ 70C

Charge your batteries with the Efest Slim K2 Charger. The Efest Slim K2 Charger is a high quality with a cost-efficient and portable design. The Efest Slim K2 Charger is a dual slot charger with 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.

Features and Specs:

  • Compatible with: 10440, 14500, 14650, 16340, 16650, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 21700, 26500, 26650
  • Portable Design with Quality Piano Strings
  • Battery Life LED Indicator Light
  • Dual Slot 5V/1A Micro USB Charger
  • AC Input Power: AC 100~240V 50/60Hz
  • DC Output Power: DC 5V 1A
  • DC Input Power: DC 5V 1A
  • 1A CC Current: 1000mA (+/-10%)
  • Auto Cut-Off Voltage: 4.20 (+/-0.05V)
  • CV Cut-Off Current: <100mA
  • Standby Current: <20mA
  • Activation Current: 50mA~100mA
  • Auto Recharge Voltage: 4.10 (+/-0.10V)
  • Operation Temperature: 0C ~ 40C
  • Storage Temperature: -40C ~ 70C

The Efest PRO C2 Charger is a simple and cost-efficient charger designed by Efest. The Efest PRO C2 Charger is a two bay charger powered by a AC wall plug and can charge two batteries at 1A each at the same time. The LED indicator light is red when your battery is charging and turns green when the battery is fully charged. The Efest PRO C2 Charger can charge different types of 3.6V/3.7V lithium batteries commonly used in electronic cigarettes, flashlights, electric tools, and more.

Features and Specs:

  • Compatible with: 10440, 14500, 14650, 16340, 16650, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 21700, 22650, 26500, 26650
  • Battery Life LED Indicator Light
  • Two Bay 1A Charger
  • Non-Slip Mat
  • AC Input Power: AC 100~240V 50/60Hz
  • DC Output Power: DC 12V 1A
  • DC Input Power: DC 12V 1A
  • 1A CC Current: 1000mA (+/-10%)
  • Auto Cut-Off Voltage: 4.20 (+/-0.05V)
  • CV Cut-Off Current: <100mA
  • Standby Current: <20mA
  • Activation Current (Battery Voltage <2.90V): 10mA~50mA
  • Auto Recharge Voltage: 4.10 (+/-0.10V)
  • Operation Temperature: 0C ~ 40C
  • Storage Temperature: -40C ~ 70C

The Efest PRO C4 Charger is a simple and cost-efficient charger designed by Efest. The Efest PRO C4 Charger is a four bay charger powered by a AC wall plug and can charge four batteries at the same time. When charging one or two batteries at the same time, the charging current will adjust intelligently to 1A. When charging three or four batteries at the same time, the charging current will adjust intelligently to 0.5A. The LED indicator light is red when your battery is charging and turns green when the battery is fully charged. The Efest PRO C4 Charger can charge different types of 3.6V/3.7V lithium batteries commonly used in electronic cigarettes, flashlights, electric tools, and more.

Please note, due to size limitations, you may only charge up to (2) 26500 or 26650 batteries at the same time.

Features and Specs:

  • Compatible with: 10440, 14500, 14650, 16340, 16650, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 21700, 22650, 26500, 26650
  • Battery Life LED Indicator Light
  • Four Bay 1A Charger
  • Non-Slip Mat
  • AC Input Power: AC 100~240V 50/60Hz
  • DC Output Power: DC 12V 1A
  • DC Input Power: DC 12V 1A
  • 1A CC Current: 1000mA (+/-10%)
  • Auto Cut-Off Voltage: 4.20 (+/-0.05V)
  • CV Cut-Off Current: <100mA
  • Standby Current: <20mA
  • Activation Current (Battery Voltage <2.90V): 10mA~50mA
  • Auto Recharge Voltage: 4.10 (+/-0.10V)
  • Operation Temperature: 0C ~ 40C
  • Storage Temperature: -40C ~ 70C

If you would like to return a product for exchange, replacement, or refund, please email our customer support at support@fogfactoryhr.com.

Please provide as many details as possible, including:

  • Order Number – this can be found in the order confirmation email.
  • Your Full Name
  • The Shipping Address
  • The Billing Address – only necessary if it differs from the shipping address.
  • Phone Number
  • Reason for Return – be as specific as possible.

If the return is approved you will get further directions on shipping the package back to us.


Terms & Conditions:

  • If utilizing an approved Prepaid Card, Fog Factory New London LLC will attempt to refund the payment method within the scope of our refund policy. Fog Factory New London LLC is not responsible for refunds to a Prepaid Card in the event that the cardholder no longer has possession of the Prepaid Card utilized in the transaction.
  • All electronics have a 45 day warranty. Please keep your receipt until this time period is up – a return can not be completed without the receipt
  • Any cosmetic damage from the Manufacturer must be reported within 48 hours of delivery or pickup.
  • You may return unopened and unused items for a refund within 7 days of purchase. Delivery fees will not be refunded after the package is delivered.
  • You may not return any opened or used products for hygienic reasons. Products are non-refundable once they have been opened or used.
  • We may charge a 15% restocking fee if the original product is not in brand new condition or the original packaging you are returning is defective.
  • When a promotional item included in the original transaction is not returned, the value of the promotional item will be deducted from the refund amount.
  • To return a product, you are responsible for getting the product back to our store location.

Please note that we may request for you to provide us with pictures of damaged or defective merchandise prior to returning them. We may also email you with troubleshooting steps in an attempt to save you the time of returning the items.
Since quantities of products may be limited, you can expedite an exchange by placing a new order and returning the unwanted merchandise. This will be at your cost and once the unwanted item has returned to us, we will refund you for the items.

We check all information on our website very carefully. However, an occasional error may occur, resulting in inaccurately updated information. Fog Factory New London LLC reserves the right to correct inaccurate information and are not responsible for typographical errors.