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Built for Makers Robotics • Electronics • DIY

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9V Battery Snap with DC Jack

Component	Specification
Input Connector	Standard 9V (PP3) Battery Snap
Output Connector	5.5mm x 2.1mm DC Barrel Jack
Polarity	Center Positive (Standard)
Cable Type	Flexible Insulated Copper Wire
Housing Material	Soft PVC / Hard Plastic Snap
Length	Approx. 10cm to 15cm

Price

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₹ 12.71

(Tax included)

बारकोड: 6431168

Product Description The 9V Battery Snap to DC Jack is a fundamental accessory for any hardware hacker or electronics hobbyist. It bridges the gap between a standard 9V battery and the DC power input found on most development boards. This cable allows you to take your projects away from the workbench and make them truly portable. Specifically designed for a snug fit, the 5.5mm outer and 2.1mm inner diameter plug is the universal standard for Arduino Unos, Megas, and many electronic instruments, providing a reliable and instant power connection.

Key Features

Instant Portability: Converts any 9V battery into a portable power pack for your microcontrollers.
Universal DC Fit: Standard 2.1mm pin size fits almost all common breadboard power modules and DC jacks.
Durable Snap: High-quality snap terminals ensure a tight mechanical and electrical connection to the battery.
Flexible Wiring: Soft insulation allows for easy cable management inside tight enclosures or robotic chassis.
Polarity Guaranteed: Pre-wired for center-positive output, matching the standard requirements of Arduino and DIY modules.

Technical Details

Output Voltage: Matches Battery (9V Nominal)
Max Current: ~2A to 3A (Limited by battery chemistry)
Wire Gauge: 24 AWG to 26 AWG
Plug Polarity: Inner (Positive), Outer (Negative)
Weight: Approx. 5g

Prototyping and Engineering Tips from Robogears

Arduino Powering: When plugging a 9V battery into an Arduino’s DC jack, the onboard voltage regulator (AMS1117) will step it down to a stable 5V. Note that the regulator will dissipate the extra 4V as heat; if your project draws a lot of current (e.g., many LEDs or servos), the regulator may get hot.
Battery Choice: For high-drain projects involving motors, we recommend using a 9V Lithium or high-quality Alkaline battery. Standard zinc-carbon batteries often "sag" under load, which can cause your microcontroller to reset unexpectedly.
Strain Relief: The solder joints inside the DC jack and the battery snap are the most common failure points. To extend the life of the cable, avoid pulling directly on the wires—always pull from the plastic connector housings.
Polarity Warning: While 99% of development boards use "Center Positive," some specialized audio equipment uses "Center Negative." Always double-check the icon on your device before plugging in a battery.

Package Includes

1 x 9V Battery Snap with DC Barrel Jack

Disclaimer Images are for reference; actual wire length or snap material (soft vs. hard) may vary by batch. Specifications subject to change by manufacturer. Ensure battery terminals are removed when not in use to prevent accidental discharge.