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NiCd Battery Charger

This comprehensive guide walks you through creating a NiCd battery charger from scratch using a copper-clad PCB. You'll learn to cut the board accurately with a matte knife, ensure a clean copper surface, and design your circuit layout. The steps include filling in the ground plane for optimal electrical properties, etching the board with your preferred etchant, and drilling holes for component placement. With detailed instructions on populating and soldering the board, this project is perfect for electronics enthusiasts looking to build their own charger.

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NiCd Battery Charger

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  1. NiCd Battery Charger

  2. Copper clad boardRuler and matte knife to cut itScrubby pad to shine it

  3. Cut the PCB Down to SizeMake sure to cut all the way through copper layer. Otherwise it'll tear when the fiberglass snaps.

  4. Clean up the Copper and Lay Out the Parts

  5. Draw Pads and Connect the Dots

  6. Fill in the Ground PlaneIt's easier on your etching (and sometimes has beneficial electrical properties) if you keep a fair amount of copper on the board to use as a very-low-impedance ground path.

  7. Let the Ink Dry, Inspect, Do Small Touch-ups

  8. EtchEtch the board using the etchant of your choice.

  9. Acetone pwns sharpie! Also note that I'm not doing this directly on my countertop. Sharpie and acetone bleeds through paper towels.

  10. Drill out the HolesDots in centers of all pads

  11. Populate the Board and Solder it Up

  12. Thanks a lotEng : M Afifi

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