Tuesday, September 24, 2024

DIY Series 68: Fixing Enchen Hair Clipper's Battery Problem

Fixing Enchen Hair Clipper's Battery Problem

  • After fully charged, hair clipper's battery cannot last long. It only can use for a short period of time (less than 1 min).
  • Suspect: Li-Ion battery malfunction due to aging

Photos:

  1. Enchen Hair Clipper
  2. Dismantle the bottom cover 
  3. Unscrew 1 screw under the bottom cover
  4. Remove the clipper ceramic blade, unscrew 2 screws underneath
  5. Open up the body cover
  6. Unscrew the main board
  7. Unscrew the USB-C charging board
  8. Remove 2 boards from the body cover
  9. Identify the Li-Ion Battery (14500) connection
  10. Dismantle the Li-Ion Battery (14500) from the board
  11. Get the necessary parts needed (flux, nickel strip, new battery)
  12. Solder the nickel strip onto the battery with help of flux
  13. Solder the battery onto the board
  14. Battery replacement done, reassemble back all loosen parts 
  15. All parts needed for this fixing















Precaution:

  • Li-Ion battery might be exploded if overheated. Handle the soldering with extra care.

Tools Required:

  • Soldering iron
  • Desoldering pump
  • Tweezer
  • Screwdriver

Cost Involved:

  • Liquid solder flux, US$1.40
  • 14500 Li-Ion Battery (800mAh), US$1.20
  • Nickel strip, US$2.20 (use only a small portion)

Spot Welding (safer & easier):

  • Spot Welding Tools (https://s.lazada.com.my/s.mhS3k)
  • It is safer and easier to use spot welding compared to soldering.
  • Just power on and point it to the nickel strip and battery. It is done in less than 1 sec.


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