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Efest K1 Slim Battery Charger

£7.99
Tax included Shipping calculated at checkout.

The EFest K1 Slim Battery Charger is a single cell battery charger that is compatible with a range of cell sizes. The slim portable design makes it easy to take this charger on the go with you and features an LED charge indicator light, so you can see charge progression. This charger is powered by a MicroUSB and has 1A fast charging mode.

  • Input: AC 100V-240V 50/60Hz
  • Standby Current: <20mA
  • Activation Current: 50mA - 100mA
  • Compatible With: 10440, 14500, 14650, 16340, 16650, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 26500, 26650
  • Auto Cutoff Voltage: 4.20V ± 0.05V
  • Auto Recharge Voltage 4.10V ± 0.10V
  • Operation Temperature: 0°C ~ 40°C


Age Verification

You must be 18 or over to purchase from this website. To comply with UK law on age-restricted nicotine products, we use 1Account, a secure third-party age verification service, to confirm your age at checkout. In most cases this check is completed automatically using the details you provide, and no extra steps are needed.

If 1Account can’t verify you automatically, you’ll be asked to choose one of three quick methods: a photo age estimation, an ID document scan (such as a driving licence or passport), or a credit card check. Once verified, your account is marked as over 18 so you shouldn’t need to verify again on future orders.

We cannot legally dispatch your order until age verification is complete. If your age is not verified within 5 days (when the verification link expires), your order will be refunded. For more information on how 1Account handles your data, please see their privacy policy at 1account.net.

Delivery Options

Royal Mail 24 Delivery

£3.80 or Free on Orders Over £20

Royal Mail 24 Delivery is a 1 - 3 working day service. Orders are dispatched same day Monday - Friday on orders place before 4pm (Excluding Bank Holidays and Holidays.)

Royal Mail aim to deliver these packages within 24 hours, however remote areas and unforeseen circumstances means delivery may take longer.


Royal Mail Special Delivery (Only Guaranteed by 1pm Mon - Fri)

£6.70 or Free on Orders Over £100

Next Day delivery, guaranteed by 1pm, Monday to Friday only (excluding Bank Holidays and Holidays.) This is a fully tracked service.


Royal Mail Saturday Guaranteed Special Delivery

£6.70

Guaranteed Saturday delivery, order before 4pm on Friday to ensure prompt delivery.

Description

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, flash lights, electric tools, and more.

Features and Specs:

  • Compatible with: 10440, 14500, 14650, 16340, 16650, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 26500, 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
Package Contents:
  • 1 x Efest Slim K1 Charger
  • 1 x Micro USB Cable

Specifications

  • Made In
    China

Payment & Security

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