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Battery Eliminator 1.5V To 12V Modification

By on November 4, 2021
battery eliminator repair








I am having a Linear Battery eliminator variable 1.5V to 12V power supply with me since almost last 30 Years. I have used it a lot in my repair job.

In this power supply I just having one problem, every time I have to reconfirm the output voltage by Multimeter meter so that equipment under testing will not get damage either by high voltage or giving false result on low voltage.

So I decided to put one digital voltmeter so that I can see what output i am getting.

how to modify battery eliminator

So here is wiring diagram for reference:

digital voltmeter panel

Accordingly I have started the modification…….

battery eliminator diagram modification

how to fix battery eliminator

    how to repair a broken battery eliminator     

Connected Wires of panel on O/P capacitor as indicated in above figure. And result is…………….

how to fix a broken battery eliminator

This article was prepared for you by Yogesh Panchal who works as a Computer Hardware Engineer in Mumbai India.

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Note: You can check his previous repair articles on Making Small DIY Hot Plate




  1. Parasuraman S

    November 4, 2021 at 1:26 pm

    Excellent and useful modification with accuracy guaranteed!

    • Yogesh Panchal

      November 9, 2021 at 8:55 pm

      Thank you! Sir.

  2. Albert van Bemmelen

    November 4, 2021 at 1:50 pm

    You gave your adjustable voltage power supply a very nice upgrade Yogesh, although it has a rather odd name being called 'battery eliminator'.

    • Yogesh Panchal

      November 9, 2021 at 8:56 pm

      Now my work is easy.........

  3. Waleed Rishmawi

    November 4, 2021 at 6:59 pm

    very nice upgrade. it looks cool and professional. thanks for sharing
    have a blessed day

    • Yogesh Panchal

      November 9, 2021 at 8:56 pm

      Thank You! Waleed.

  4. Imoudu Onwumah

    November 4, 2021 at 11:39 pm

    This's an innovation to make repair work easy and faster,good job sir!

    • Yogesh Panchal

      November 9, 2021 at 9:00 pm

      Imoudu Onwumah,
      Yes Need is mother of Innovation.

  5. Arun Kumar

    November 5, 2021 at 5:37 am

    I liked it

  6. Yogesh Panchal

    November 9, 2021 at 9:00 pm

    your welcome! Arun Kumar

  7. jai Etwaroo

    November 20, 2021 at 10:20 pm

    Nice modification Yogesh,I like it.

  8. Yogesh Panchal

    November 26, 2021 at 11:42 pm

    jai Etwaroo,

  9. Robert Calk Jr.

    November 28, 2021 at 5:11 am

    Good job, Yogesh. A definite improvement.


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