Magnetic USB Charging Cable for 18650 3.7V Lithium Battery
Magnetic USB Charging Cable for 18650 3.7V Lithium Battery
Magnetic USB Charging Cable for 18650 Lithium Batteries
Keep your 3.7V lithium battery-powered devices charged and ready with this compact, reliable magnetic charging cable. Featuring a strong magnetic suction interface and an SM plug extension design, this cable makes charging effortless — no fumbling, no misalignment. Whether you're working with small electronics, hobby models, or portable gadgets, this cable delivers stable, safe power transfer every time.
Made in Mainland China.
Key Features
- Magnetic Snap-In Connection: Strong magnetic suction automatically aligns and locks the charging interface into place, making it quick and easy to connect or disconnect. Prevents reverse connection for added safety.
- SM Plug Extension Design: Includes a standard SM male connector and a 150mm (approx. 10–12cm connector head) flexible extension cord, compatible with most 3.7V lithium battery devices for versatile installation.
- High-Quality Copper Core Wire: Excellent conductivity ensures a stable, non-heating charging process that minimises energy loss and helps extend the service life of both your batteries and connected equipment.
- Wide Compatibility: Designed specifically for 18650 lithium batteries; also compatible with a range of small electronics, toys, and hobby models requiring 3.7V charging.
- Durable, Reinforced Build: Reinforced joints and bending-resistant wire construction paired with a wear-resistant outer shell mean this cable holds up to regular indoor and outdoor use.
Specifications
- Accessory Type: Battery Charging Cable / SM Extension Cable
- Voltage: 3.7V (Lithium Battery Compatible)
- Extension Cable Length: Approx. 150mm
- Connector Type: Magnetic USB Female Seat + SM Male Plug
- Battery Included: No
- Charger Included: No
- Package Contents: 1 × Magnetic Charging Cable
Note: Due to manual measurement, a deviation of up to 5mm may exist. Slight color differences may occur due to lighting conditions in product photography.
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Learn more: EPA guidance on lithium-ion battery handling
Frequently Asked Questions
Q: What battery types is this magnetic charging cable compatible with?
A: This cable is designed primarily for 18650 lithium batteries operating at 3.7V. It is also compatible with a wide range of small electronic devices, hobby models, and toys that use 3.7V lithium battery charging systems with an SM connector.
Q: Does this cable include a battery or charger?
A: No — this listing includes only the magnetic SM extension charging cable (1 piece). Batteries and chargers are sold separately.
Q: How long is the cable?
A: The SM extension cord portion measures approximately 150mm in length (around 10–12cm for the connector head). Please allow for a minor measurement deviation of up to 5mm due to manual measuring processes.
Q: Is the magnetic connection safe to use regularly?
A: Yes. The strong magnetic suction design automatically aligns the connector to prevent reverse connection. The high-quality copper core wire ensures a stable, low-heat charging process, making it safe and reliable for everyday use indoors and outdoors.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.