Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

AC-DC 4.2V 2A Power Adaptor Lithium Battery Charger Single String Polymer Battery Charger 18650 Lithium Battery Charger Full Stop Automatically

Product ID: 314615755

Details

Amperage
2 A
Brand
KNACRO
Compatible Devices
Adapter Led
Connector Type
barrel
Included Components
1 x 4.2V 2A
Input Voltage
240 volts

⚡4.2V 2A stable output

🔌5.5x2.1mm universal barrel plug

🛡️5-layer safety protection

S$20

Duties & taxes included

In stock

Sold byAmazon SINGAPOREDelivered 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 SINGAPORE.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Description

🔋 Power up smart, stay charged, and never miss a beat!

SMART SAFETY SHIELD - Advanced over-current, over-voltage, overcharge, and short circuit protections keep your battery and device safe 24/7.
GLOBAL VOLTAGE READY - AC100-240V input means seamless use worldwide—charge confidently wherever your hustle takes you.
INTUITIVE LED STATUS - Dynamic LED indicators guide you through charging phases—know exactly when your battery is powering up or fully charged.
UNIVERSAL COMPATIBILITY - Built-in leaf spring supports 5.5x2.1mm and 5.5x2.5mm barrel connectors—perfect fit for your device, no guesswork needed.
PRECISION POWER DELIVERY - Consistent 4.2V 2A output tailored for single-string lithium batteries ensures optimal charging speed without compromise.

The KNACRO AC-DC 4.2V 2A Power Adapter is a precision lithium battery charger designed for single-string 18650 polymer batteries. Featuring a universal 5.5x2.1mm barrel connector with built-in leaf spring, it supports global AC input (100-240V) and delivers a stable 4.2V 2A output. Equipped with comprehensive safety protections and intuitive LED indicators, it ensures efficient, safe, and hassle-free charging for your essential devices.

Specifications

ASIN	B08F24VVWQ
Amperage	2 A
Brand	KNACRO
Built-In Media	1 x 4.2V 2A Power Adapter
Compatible Devices	Adapter, Led lights
Connectivity Technology	DC Barrel
Connector Type	barrel connector
Current Rating	2 A
Customer Reviews	4.2 4.2 out of 5 stars (2)
Input Voltage	240 volts
Main Power Connector Type	2 Pin
Manufacturer	KNACRO
Mounting Type	Wall Mount
Number of Items	1
Output Voltage	4.2 volts
Power Source	Corded Electric
Special Features	Short Circuit Protection
Total Usb Ports	1
Unit Count	1 Count
Voltage	3.7 volts
Wattage	8.4 watts

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.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

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

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Suresh K.

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

4 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

S$20

Duties & taxes included

In stock

Sold byAmazon SINGAPOREDelivered 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 SINGAPORE.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

Abdullah B.

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

3 weeks ago

View all Trustpilot reviews