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The 9V Battery Snap Connector to DC Jack Cable (2-Pack) is a convenient power accessory designed for prototyping, field testing, and untethered microcontroller projects. It connects standard $9\text{V}$ batteries (6F22 / PP3 size) directly to hardware components equipped with a standard $2.1\text{mm}\times 5.5\text{mm}$ DC power socket.

Each cable consists of a reinforced, insulated 9V battery cap on one end and a molded $2.1\text{mm}\times 5.5\text{mm}$ male DC barrel plug on the other. Wired in standard Center-Positive polarity (Center pin $=+9\text{V}$, Outer sleeve $=GND$), it is fully plug-and-play compatible with the power regulation jacks on Arduino UNO R3, Arduino Mega 2560, Arduino DUE, and various DIY robotics controller boards.

Key Features and Benefits

• Direct Barrel Plug Compatibility: Plugs straight into the onboard DC power barrel jack of Arduino boards without requiring breadboard jumper wiring.

• Standard Center-Positive Polarity: Wired in industry-standard configuration (Center pin positive, Outer barrel ground) for built-in board protection.

• Durable Molded Connectors: Strain-relief boot designs prevent internal wire snaps caused by frequent pulling or bending.

• Portable Power Solution: Instantly powers field projects, weather stations, and mobile robots without needing a USB cable or wall adapter.

• Value 2-Pack: Includes two individual 9V-to-DC jack assemblies for multi-board setups or backup spares.

Technical Specifications

Wiring & Pinout Reference

1. DC Jack Pinout Diagram:

          Center Pin (+)  --->  Red Wire   ---> +9V Positive Battery Terminal
          Outer Barrel (-) --->  Black Wire ---> GND Negative Battery Terminal

2. Compatibility List:

IMPORTANT OPERATING NOTE: $9\text{V}$ transistor batteries have a relatively low capacity ($\approx 400\text{mAh}-600\text{mAh}$). They are ideal for low-power microcontroller logic and sensor readings, but will drain quickly if used to drive high-current DC motors, servos, or heavy relay modules directly through the microcontroller's voltage regulator.

Applications

• Arduino & Microcontroller Powering: Portable power supply for Arduino UNO, Mega, and compatible boards.

• STEM & Robotics Field Testing: Running sensor nodes and mobile robots away from workbench USB supplies.

• DIY Electronic Devices: Powering small audio amplifiers, signal generators, LED strips, and test equipment.

• IoT Remote Sensor Nodes: Short-term field deployment of wireless telemetry circuits.

Package Includes

• 2 x 9V Battery Snap Connector to $2.1\text{mm}\times 5.5\text{mm}$ DC Male Jack Cables

Shipping & Delivery

• Free shipping on orders above ₹999 across India

• Dispatched within 1-3 business days

• Expected delivery: 3-7 business days depending on location

• Protective ESD / polybag packaging for safe delivery