2×18650 Battery Box with Switch & DC Jack – 7.4V

The 2x 18650 Battery Box with Switch and DC Jack is a convenient and durable battery enclosure designed for powering electronic projects, portable devices, robotics systems, and DIY applications. The holder accommodates two 18650 lithium-ion batteries connected in series to provide a nominal output voltage of 7.4V. It features a built-in ON/OFF switch for easy power control and an integrated DC barrel jack for simple connection to compatible devices. The enclosure includes a removable sliding cover with a locking screw to securely protect the batteries from accidental removal and environmental exposure.

Features

Holds two 18650 lithium-ion batteries

Series battery configuration

Provides 7.4V nominal output

Built-in ON/OFF power switch

Integrated DC barrel jack output

Secure sliding cover design

Locking screw for battery protection

Durable plastic enclosure

Pre-wired output leads

Tinned wire ends for easy connection

Compact and portable design

Easy battery installation and replacement

Suitable for DIY electronics projects

Protects batteries from environmental exposure

Specification

Product Type: Battery Box with Switch and DC Jack

Battery Compatibility: 18650 Lithium-Ion Batteries

Battery Capacity: 2 Cells

Battery Configuration: Series

Nominal Output Voltage: 7.4V

Maximum Fully Charged Voltage: 8.4V

Switch Type: ON/OFF Slide Switch

Output Connector: DC Barrel Jack

Cover Type: Sliding Cover with Locking Screw

Lead Length: Approximately 15cm

Wire Termination: Tinned Ends (Approx. 5mm)

Material: Plastic

Color: Black

Battery Included: No

Application: Portable Power and Electronics Projects

Links

- 2x 18650 Battery Box with Switch and DC Jack 3D Model

Tutorials

2BH18650-J27S3 | 2×18650 7.4V Battery Holder with ON/OFF Switch