Why is the charger blinking?

Probably defective. Mines doesn’t blink.

Will this disconnect if the batteries are full ?

It shows a different light if batteries are fully charged so I assume yes

What color does it change to when the batteries are fully charged?

Depending on the battery, the light above the section that the battery is in will turn blue or both lights will turn blue when the battery is fully charged. I haven’t put 2 batteries in to charge at the same time. I did once and neither light turned blue. I just charge 1 battery at a time.

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Efest SLIM K2 Intelligent Charger

Product ID: 49152557

Details

Brand
Efest
Color
Black
Input Voltage
240 volts
Output Voltage
5 volts
Product Dimensions
0.04"D x x

⚡Over-current & voltage protection

💡LED battery life indicator

🔋Dual-slot 1A charging

A$40

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In stock

Sold byAmazon AustraliaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Charge smarter, stay powered longer — never miss a beat!

PORTABLE POWERHOUSE - Compact design with durable piano string construction tested to 15,000+ tensile strength cycles.
SMART SAFETY SHIELD - Built-in over-current, over-voltage, short-circuit & reverse polarity protection keeps your batteries safe.
INDEPENDENT DUAL SLOTS - Each slot monitors and charges batteries separately for optimized performance.
INTUITIVE LED INDICATORS - Clear battery life status at a glance, eliminating guesswork and boosting efficiency.
UNIVERSAL BATTERY COMPATIBILITY - Fits 10440 to 26650 sizes with spring-action contacts for seamless charging.

The Efest SLIM K2 Intelligent Charger is a sleek, dual-slot Li-Ion battery charger compatible with a wide range of battery sizes (10440 to 26650). Featuring 1A charging per slot, Micro USB input, and advanced safety protections, it ensures fast, safe, and efficient charging. Its durable, portable design with LED indicators makes it the perfect companion for professionals who demand reliable power on the go.

Specifications

ASIN	B0747K3YHM
Amperage	1 A
Brand	Efest
Color	Black
Compatible Devices	18500, 18650 and 20700 batteries
Connector Type Used on Cable	MicroUSB
Current Rating	1 A
Customer Reviews	4.4 4.4 out of 5 stars (306)
Global Trade Identification Number	04251256230451
Input Voltage	240 volts
Item Dimensions D x W x H	0.04"D x 0.04"W x 0.04"H
Manufacturer	PrimeDeals
Mfr Part Number	CharG-SlimK2efest
Model Number	7545912627
Number of Ports	2
Output Voltage	5 volts
UPC	689343495478 689343495515
Unit Count	1 Count

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

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A$40

Duties & taxes included

In stock

Sold byAmazon AustraliaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Australia.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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