Dear Valued Customers. We will be closed for holiday starting 24th of December 2021 and resume business 3rd of January 2022. We stay in touch via

Dear customers, Fresh stock Ampsplus 18650 HX40 4000, 21700 SX50 5000, Sony VTC6, Vapcell F38.

Efest K2 Slim Battery Charger

Efest K2 Slim Battery Charger
Brand: Efest, Model: K2 Slim, USB Charger, Dual Bay, LED Control
Compatible with 10440/14430/14500/14650/16340/17335/17500/17670
3.6V / 3.7V Li-ion / IMR / INR / ICR / NCR Rechargeable Batteries.
Read more in product details.

Out of stock

Do you need advice?

We are happy to help. Call us now 01623748867 Email:

Same day dispatch

For all orders placed before 1PM (Monday - Friday).

Free delivery for orders over £45

RM 2nd class from £0.89.
RM 1PM Next Day from £6.89.

100% Authentic

We are the UK's authorised online retailer of batteries and accessories. Shop with confidence.

Huge selection

Batteries of all sizes, battery chargers & accessories all available for immediate dispatch.

Efest K2 Slim Battery Charger

The Efest Slim K2 Dual Bay Battery Charger is a high quality, cost-efficient,
portable charger capable of charging 2 cells at any one time.
Featuring Micro USB allowing for 1 Amp charging.

Compatible with 10440/14500/14650/16340/17335/17500/17670/18350/18490/
18500/18650/18700/20700/21700/22650/25500/26650 3.6V/3.7V Li-ion batteries

Each battery bay is monitored independently to provide an efficient charge of each battery.
There is an LED indicator to show the current charge level of each battery.
In build into each charger is a range of protections to promote safer battery charging.
Included protections are reverse polarity detection, overcharge protection,
short circuit protection, amongst others.

A great charger for everyday use and perfect for those trips away in thanks
to its small size and quality design.

Please Note: No batteries are included with this charger.

Kit Contents:
• 1 x Efest Slim K2 Battery Charger
• 1 x USB Cable


• 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

For warranty information, see our terms & conditions page.
Write Your Own Review
You're reviewing:Efest K2 Slim Battery Charger