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

⚡1A fast charging current

🔋Dual independent charging slots

🛡️Multi-layer safety protections

E£ 3514

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered 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 EGYPT.

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Description

🔌 Power up smart, stay charged longer!

ROBUST SAFETY SUITE - Built-in over-current, over-voltage, short-circuit, and reverse polarity protections keep your devices secure.
PORTABLE DURABLE DESIGN - Compact charger with premium piano string construction tested to 15,000+ tensile strength cycles—ready for your on-the-go lifestyle.
INTUITIVE LED BATTERY INDICATOR - Clear LED lights provide real-time battery status, so you never guess when to unplug.
UNIVERSAL BATTERY COMPATIBILITY - Charges 10440 to 26650 Li-ion batteries with adaptive spring contacts for ultimate versatility.
DUAL SLOT INDEPENDENT MONITORING - Each slot charges and monitors batteries separately, maximizing efficiency and safety.

The SLIM K2 Intelligent Charger by Efest is a sleek, dual-slot Li-ion battery charger compatible with a wide range of battery sizes (10440 to 26650). Featuring 1A charging current per slot, independent monitoring, and comprehensive safety protections, it combines portability with premium durability—perfect for professionals who demand reliable, fast, and safe charging on the move.

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

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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.

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TrustScore 4.5 | 7,300+ reviews

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2 weeks ago

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E£ 3514

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered 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 EGYPT.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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