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Efest SLIM K4 Charger

Price:
$17.48 $21.76
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DESCRIPTION

Efest SLIM K4 Charger

The Efest SLIM K4 Charger is a high-quality, portable battery charger designed for efficient and safe charging of a variety of Lithium IMR 3.6V/3.7V batteries With its auto-detect charging technology, multiple charging slots, and compact design, it’s ideal for vapers and users of high-drain devices who require a reliable and versatile charging solution.


Key Features:

  1. Wide Compatibility: Supports a range of Lithium IMR batteries, including popular sizes like 18650, 20700, 21700, and more.
  2. Four Charging Slots: Charge up to four batteries simultaneously with independent charging for each slot.
  3. Auto-Detect Charging Current: Automatically adjusts the charging current based on the number and type of batteries inserted:
    • 2×1.0A for two slots.
    • 1×1.0A for a single slot.
    • 4×0.5A or 3×0.5A for four or three slots, respectively.
  4. Auto Cut-Off and Recharge: Stops charging when batteries reach 4.2V and reactivates if voltage drops to 4.1V, preventing overcharging.
  5. Safe and Efficient: Includes features like auto cut-off voltage, CV cut-off current, and activation current control for safe charging.
  6. Compact and Portable: Lightweight design makes it easy to carry and use on the go.
  7. Durable and Reliable: Operates efficiently within a temperature range of 0℃ to 40℃ and stores safely in temperatures as low as ﹣40℃


Specifications:

  • Brand: Efest
  • Product Name: SLIM K4 Charger
  • Input Power: DC 5V 2A
  • Charging Currents:
    • 2×1A CC Current: 2000mA ± 10>#/li###
    • 1×1A CC Current: 1000mA ± 10>#/li###
    • 4×0.5A/3×0.5A CC Current: 500mA ± 10>#/li###
  • Auto Cut-off Voltage: 4.20V ± 0.05V
  • CV Cut-off Current: <100mA
  • Standby Current: <20mA
  • Activation Current: 50mA~100mA
  • Auto Recharge Voltage: 4.10V ± 0.10V
  • Operation Temperature: 0℃~40℃
  • Storage Temperature: ﹣40℃~+70℃
  • Compatible Batteries:
    • Lithium IMR 3.6V/3.7V batteries: 10440, 14500, 16340, 17340, 18350, 18490, 18500, 18650, 26500, 26650, 20700, 21700








Package Contents:

  • 1 x Efest SLIM K4 Charger
  • 1 x USB Cable
  • 1 x User Manual

FAQ:

Q: Can the Efest SLIM K4 Charger charge different battery sizes simultaneously? A: Yes, the charger supports independent charging for each slot, allowing you to charge different battery sizes at the same time.

Q: How does the auto-detect charging current work? A: The charger automatically adjusts the charging current based on the number of batteries inserted:

  • 1A for 1-2 batteries
  • 0.5A for 3-4 batteries

Q: Does the charger have overcharging protection? A: Yes, it features auto cut-off voltage at 4.2V and reactivates charging if the battery voltage drops below 4.1V

Q: What power source can I use to charge the Efest SLIM K4 Charger? A: Use a USB power source with a 5V/2A output for optimal charging performance.

Q: Is the charger portable? A: Yes, its compact and lightweight design makes it ideal for traveling or on-the-go use.


Conclusion:

The Efest SLIM K4 Charger is a reliable, efficient, and portable charging solution for users of multiple Lithium IMR batteries. With its auto-detect charging current, wide compatibility, and built-in safety features, it ensures fast and safe charging for high-drain devices. Perfect for vapers and gadget enthusiasts, the SLIM K4 delivers convenience and performance in one compact device.

Brands   Efest
4.4
(5 reviews)

4
Greg  |  21.03.2021 Algeria
Everything is excellent so far, very surprised. Will continue purchasing online.

4
Beau Hill  |  13.02.2021 Algeria
Go anywhere charger with much functionality. And didn’t have any problems when buying on this site, everything is exactly as described. Recommended product and store.

5
Cody  |  05.02.2021 Algeria
I received my slimk4 charger and absolutely love the size. it's amazing and look forward to trying other products.

4
Elliot  |  01.01.2021 Algeria
That's how it goes- just plug it in, insert the batteries, and in 4 hours it's done! Like slim k4 charger and used it many times. Recommend.

5
Siena  |  06.12.2020 Algeria
Charges the batteries so effectively. Gets the job done at a inexpensive price point. Satisfied with vawoo.


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Efest SLIM K4 Charger

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