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A Hovering Board Power Charger Repaired

By on May 21, 2020
how to fix hoverboard power supply









A guy next door brought this hovering board power charger for repair and explained that the charger is completely dead. As he continued to explain that he heard a pup sound before it went into shut down.

hoverboard power supply repair

As you can see in the photo, this charger is 42 DC volt rated at 2 amps. The idea of this charger is to get a green light on the stand by which mean the 42 DC volts are presents. Once it was plugged into the hovering board charging port, the light should switch to red indicating it was charging. Once the charging process is done, the charger should go back to the stand by light which is green. In my case here, the green light was not present and therefore it should be opened and checked out.

power supply bridge rectifier shorted

The moment I opened the charger, I saw that the fuse was not there which means it was blown off or someone tried to fix it and was not successful.

Since the fuse was gone, the only logical thing to do is to check the bridge rectifier.

blown fuse and rectifier

After the cleaning of the charger and did some testing, I found out that the bridge rectifier was shorted and needed replacement.

In the photo above are the replacement of the bridge rectifier and a fuse. The fuse rating is 3.15 amp which I have plenty of in the shop. I checked for another shorted components and found none. I replace the bridge rectifier but I did not add the fuse yet, instead I added a light bulb to the fuse terminals (sorry forgot to take photo of) and powered on the device. The Light bulb stayed dim indicating all is well in this charger. The green light was on and steady.

I added the fuse in its place and powered on the charger and as expected, it was up and running.

how to fix hoverboard power supply

Mission Accomplished.

This article was prepared for you by Waleed Rishmawi, one of our ‘Master Authors’ and currently working in the Bethlehem area of Palestine repairing electrical and electronic equipment.

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Note: You can check his previous repair articles in the link below:




  1. Dmitriy Pomazov

    May 22, 2020 at 11:26 am

    "very complex failure" -diode bridge and fuse! Minor, gentlemen!

  2. Albert van Bemmelen

    May 22, 2020 at 1:24 pm

    I suppose that after noticing the fuse had blown off on itself it was only because the diode bridge heavily shorted. And not because someone already had tried to fix it invain. And it is always a good thing having replacement fuses (and other parts) in stock for cases like this.

    • Waleed Rishmawi

      May 23, 2020 at 12:31 am

      Albert: I suppose. Have a blessed day

  3. Parasuraman S

    May 22, 2020 at 5:24 pm

    Very straightforward job! But Well handled and done!

    • Waleed Rishmawi

      May 23, 2020 at 12:29 am

      Parasuraman: indeed. Have a blessed day

  4. Yogesh Panchal

    May 22, 2020 at 6:38 pm

    Good Job! Waleed

    • Waleed Rishmawi

      May 23, 2020 at 12:30 am

      Yogesh: thanks man. Have a good and blessed day

  5. Greenford William Mafuleka

    May 25, 2020 at 10:14 pm

    Thank you for repair job nicely done. Will do research to find my fellow technicians who would be interested to join our team.

  6. Greenford William Mafuleka

    June 27, 2020 at 8:04 pm

    Dear Sir,
    Thank you for the best repair information. Will try find you some interested to join your site.
    I also need you to find me 12v dc to 220v ac power inverter technician and components seller.
    Will appreciate. Regards.
    Greenford William Mafuleka


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