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Product Description (Detailed):

Effortlessly power your electronic projects and devices with our convenient 9V Battery Connector with DC Jack. This indispensable accessory, often referred to as a battery cap with wire, provides a reliable and secure way to connect a standard 9V battery to a wide range of electronic boards and modules that utilize a DC barrel jack for power input. It's a must-have for hobbyists, students, and engineers working on portable designs, prototyping, or projects where a fixed power supply isn't practical.

The connector features a durable snap-on cap that securely fits onto the terminals of a 9V battery, ensuring excellent electrical contact and preventing accidental disconnections or short circuits. The attached wires (typically red for positive and black for negative) lead to a common DC barrel jack (usually 5.5mm outer diameter with a 2.1mm inner diameter, center positive). This widely adopted standard makes it directly compatible with popular development boards like Arduino, Raspberry Pi, and various microcontrollers, as well as many small appliances, LED strips, and custom circuits. Its plug-and-play simplicity eliminates the need for soldering or complex wiring when you need temporary or portable 9V power. Beyond just power, the included cap design also offers an element of battery terminal protection, shielding them from dust, debris, and accidental shorting when the battery is not in use. Lightweight and compact, this 9V battery connector with DC plug is an essential tool for quick power prototyping, field testing, and creating self-contained battery-powered gadgets. Simplify your power solutions and bring your electronic ideas to life with ease.

The 9V Battery Snap Connector with DC Jack is a convenient power supply adapter designed to interface a standard 9V battery with any device or module using a DC barrel jack, such as Arduino Uno/Nano, sensor boards, and LED drivers.

The connector features a durable snap-on battery cap on one end and a male DC plug (5.5mm × 2.1mm) on the other, allowing users to quickly power projects without soldering or using a breadboard. It's ideal for on-the-go applications, project testing, and educational setups.

Key Features:

• Compatible with standard 9V batteries (PP3 type)

• Output via DC barrel plug – 5.5mm (OD) × 2.1mm (ID)

• Easy power supply solution for Arduino, Raspberry Pi, sensors, and DIY boards

• High-quality flexible wire leads for secure connections

• Lightweight and compact for portable electronics and robotics

• Snap-on design ensures quick battery replacement

• Polarity: Red – Positive, Black – Negative

Technical Specifications:

How to Use:

1. Snap the connector onto a 9V battery securely.

2. Plug the DC barrel jack into an Arduino Uno/Nano or any compatible 5.5mm/2.1mm DC input device.

3. Ensure correct polarity (center-positive devices).

4. Power up your circuit easily without external adapters.

Tip: Ideal for low-current applications. For high current, use rechargeable Li-ion packs.

Applications:

• Power supply for Arduino Uno, Nano, NodeMCU, ESP32

• Portable sensor or LED circuits

• STEM & school electronics projects

• Breadboard testing and prototyping

• Compact robotics and IoT modules

• Educational and DIY electronic kits

Package Includes:

• 1× 9V Battery Snap Connector with DC Jack