Battery snap with DC Jack 5.5x2.1mm
Battery snap with DC Jack 5.5x2.1mm
Battery snap with DC Jack 5.5x2.1mm
Battery snap with DC Jack 5.5x2.1mm
Battery snap with DC Jack 5.5x2.1mm
Battery snap with DC Jack 5.5x2.1mm

Battery snap with DC Jack 5.5x2.1mm

Battery Holders
BAH0025
€0.95
In Stock
Immediate Dispatch
Battery snap with DC Jack 5.5×2.1mm and 15 cm red-black wire — the quickest way to power any DC-jack device directly from a 9V PP3 battery or battery holder with snap connector.

 

The Battery Snap with DC Jack 5.5×2.1mm is a compact, ready-to-use adapter cable that connects a standard 9V PP3 battery (or any battery holder with a snap terminal) directly to a device equipped with a 5.5×2.1 mm barrel-jack power input. With its 15 cm colour-coded wire and tool-free snap-on connection, it eliminates the need for soldering or breadboard wiring when you need a quick 9V supply for your project.

Key Features

  • Universal DC Jack 5.5×2.1mm: Fits the most common barrel-jack standard found on Arduino boards, shields, and countless DIY electronics → no adapter required
  • Standard 9V PP3 snap connector: Clips onto any 9V block battery or battery holder with a snap terminal → instant, secure connection
  • 15 cm red/black wire: Colour-coded for correct polarity (red = positive, black = negative) → reduces wiring errors
  • Tool-free, solderless installation: Simply snap onto the battery and plug into the jack → ideal for prototyping and field use
  • Durable construction: Robust snap clips and strain-relieved cable → withstands repeated connect/disconnect cycles

Compatibility

  • Arduino UNO / Mega / Nano (with DC jack): The 5.5×2.1 mm plug mates directly with the onboard barrel jack; 9V from a PP3 battery is within the recommended VIN range.
  • Generic DC-powered boards & modules: Any device that accepts a 5.5×2.1 mm centre-positive barrel jack and operates at 9V.
  • Battery holders with snap connector: Works as a pigtail between a multi-cell AA/AAA holder (with snap output) and a DC-jack device.

Typical Applications

  • Arduino prototyping: Power your UNO or Mega from a 9V battery during field tests or classroom demos without a USB cable or bench supply.
  • Robotics & mobile projects: Lightweight battery connection for small robots, RC vehicles, and wearable electronics.
  • Toys & consumer electronics repair: Replace a damaged power lead or add a removable battery option to an existing device.
  • Educational kits: Safe, low-voltage power supply for school and maker-space electronics lessons.
  • Rapid prototyping: Keep several on the bench — swap batteries in seconds without rewiring your circuit.

Technical Specifications

ParameterValue
DC Jack type5.5 mm outer / 2.1 mm inner (barrel jack)
Battery connectorStandard 9V PP3 snap (I-type clip)
Cable length15 cm
Cable coloursRed (positive), Black (negative)

FAQ

Q: Is the DC jack centre-positive or centre-negative?
A: The standard wiring convention for this type of snap cable is centre-positive (red wire to centre pin), which matches the Arduino barrel-jack pinout. Always verify your device's polarity requirement before connecting.

Q: Can I use this with a 9V battery holder instead of a single PP3 cell?
A: Yes — any battery holder that terminates in a standard 9V snap connector (the same press-fit clips used on a PP3 cell) will connect directly to this cable.

Package contents: 1 × Battery snap with DC Jack 5.5×2.1mm (15 cm cable)

⚠ Note: Battery not included. Ensure your device accepts a 5.5×2.1 mm centre-positive supply at 9V before use. Do not exceed the current rating of the battery or the device being powered.
Battery Type
PP3 - 9v (6LR61)
No. of Batteries
1
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