18650 Dummy Battery Spacer with JST Input Wire

$1.88 $2.23

Power your small electronics without ever worrying about battery life again! This 18650 dummy battery spacer is a clever placeholder cylinder that connects directly to an external power adapter via its built-in JST input wire. Simply slide it into any standard 18650 battery slot and run your device from a reliable wired power source instead.

Perfect for desk lamps, LED light strips, small fans, speakers, cameras, and DIY toy projects — this reusable spacer is a must-have for makers, hobbyists, and anyone who wants a continuous, stable power supply for their battery-operated devices.

Please Note: This is NOT a real 18650 battery. It contains no actual power cells, does not charge, and cannot be used in series. It acts purely as a conductive pass-through connector between your device's battery compartment and an external power cord or adapter.

Key Features

Fits standard 18650 battery slots — works as a direct drop-in spacer
Built-in JST connector with ~23cm (9.05 in) input wire for easy adapter hookup
Reusable and durable construction
Available in Blue, Yellow, or Red
Great for LED lights, small toys, fans, speakers, and cameras
No charging function — designed for wired/adapter-powered use only

Specifications

Height: ~65 mm / 2.56 in
Diameter: ~18 mm / 0.71 in
Cable Length: ~23 cm / 9.05 in
Color Options: Blue / Yellow / Red
Battery Included: No
Charger Included: No
Made in Mainland China

Package Includes

1× 18650 dummy spacer cylinder with cable
1× Male wire connector

Note: Please allow 1–2 cm variance due to manual measurement. Slight color differences may occur due to display settings.

Related Products You Might Like

Learn more: EPA guidance on lithium-ion battery handling

Frequently Asked Questions

Q: Can this 18650 dummy battery spacer be used as a real battery?

A: No — this is a dummy/placeholder spacer only. It contains no power cells and cannot store or generate electricity. It is designed solely as a pass-through connector to allow an external power adapter to power your device through the battery compartment.

Q: What devices is the 18650 battery spacer compatible with?

A: This dummy spacer fits any device that uses a standard 18650 battery slot, including LED desk lamps, small toy motors, mini fans, portable speakers, and DIY electronic projects that accept an 18650-sized cell.

Q: What is the cable connector type on this battery spacer?

A: The spacer comes with a JST-style connector on a ~23 cm (9.05 in) wire, making it easy to connect to compatible power adapters or DIY power supply setups.

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.