18650 Magnetic Charging Cable SM Extension Cord 1/3/5 Pack

$23.09 $27.86

18650 Magnetic Charging Cable with SM Extension Cord

Keep your 3.7V lithium battery devices charged safely and conveniently with this versatile SM Extension Cord Magnetic Charging Cable. Designed specifically for 18650 lithium batteries, this cable features a strong magnetic suction interface and a standard SM male connector — making it ideal for DIY electronics, repair projects, toys, models, and small devices. Available in packs of 1, 3, or 5 to suit your needs. Made in Mainland China.

Key Features

Magnetic Suction Charging Interface: Strong magnetic design auto-aligns and seats the connection for fast, secure charging. Easy to plug and unplug, with built-in protection against reverse connection for added safety.
SM Plug Extension Cord: Fitted with a standard SM male connector, compatible with most 3.7V lithium battery equipment. Extension cord length is approximately 150mm, giving you flexible reach across different installation scenarios.
Stable & Efficient Power Transmission: High-quality copper core wire ensures excellent conductivity and a stable, low-heat charging process — minimising energy loss and helping extend the service life of your batteries and devices.
Wide Compatibility: Designed for 18650 lithium batteries and compatible with a broad range of small electronics, toys, and models with 3.7V charging requirements.
Durable, Reinforced Construction: Connector joints and wiring are reinforced for strong bend resistance. Wear-resistant outer casing stands up to daily handling in both indoor and outdoor environments.

Specifications

Connector Type: SM Male Plug + Magnetic Suction Interface
Compatible Battery: 18650 Lithium Battery (3.7V)
Extension Cord Length: ~150mm (approx. 10–12cm connector body)
Wire Material: High-quality copper core
Pack Sizes Available: 1 pc, 3 pcs, 5 pcs
Origin: Made in Mainland China

Note: Due to manual measurement, a deviation of up to 5mm may exist. Slight colour differences from product images may occur due to lighting conditions.

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Frequently Asked Questions

Q: What battery type is this magnetic charging cable compatible with?

A: This SM extension cord magnetic charging cable is designed for 18650 lithium batteries rated at 3.7V. It is also compatible with a wide range of small electronics, toys, and models that share the same 3.7V charging requirement via SM-type connectors.

Q: How long is the extension cord on this charging cable?

A: The extension cord is approximately 150mm (15cm) in length, with the connector body measuring around 10–12cm. Please note a manual measurement deviation of up to 5mm may apply.

Q: Is the magnetic connector safe to use — can it be connected the wrong way?

A: Yes — the magnetic suction interface is designed with reverse-connection protection, automatically aligning the correct polarity when it attaches. This makes it both convenient and safe for everyday charging use.