9V Battery Clip to 5.5×2.1mm DC Barrel Jack Adapter

This adapter cable converts a standard 9V battery connection into a 5.5×2.1mm DC barrel jack for mobile power. It is ideal for students, makers, and educators who need a quick, untethered power source for compatible development boards and electronics prototypes.

Direct 9V battery conversion

The adapter connects directly to standard 9V snap batteries, supplying DC power without the need for additional voltage regulators on compatible hardware. It provides a clean, wire-free alternative to benchtop power supplies for quick demonstrations.

Standard center-positive connector

Featuring a 5.5×2.1mm center-positive DC barrel jack, this cable fits power inputs found on common microcontroller platforms and evaluation boards. The standard interface ensures straightforward plug-and-play connectivity.

Mobile prototyping and robotics support

The lightweight cable design makes it simple to power embedded prototypes, temporary field deployments, and mobile robotics projects. It allows rapid testing and hardware validation away from wall power adapters.

Classroom and lab versatility

Built for rapid setup, this compact battery lead is well suited for educational electronics demonstrations and temporary firmware testing. Each package includes one 9V to barrel jack adapter cable.