Published on October 15th, 2011 | by Jules Yap


No batteries required

Materials: LJUSA dynamo torch

Description: It was time to replace the batteries from our daughters toy piano. But instead I removed them all and mounted inside the piano some components (gearbox and electronics) from the IKEA LJUSA dynamo torch.

I just needed to drill some holes and solder two wires, that’s all.
Now the piano will never be short of energy.

See more of the dynamo powered toy.

~ Dominik

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The Author

Jules Yap

"I am Jules, the engine behind IKEAHackers and the one who keeps this site up and running. My mission is to capture all the wonderful, inspiring, clever hacks and ideas for our much loved IKEA items".

6 Responses to No batteries required

  1. Jennifer says:

    Amazing and fabulous. I am in awe of your skills.

  2. Berit says:

    AWESOME! Wish I had these skills!

    Usually, I think I am clever for ordering a set (2x what is called-for) of eneloop batteries when I buy a new battery-op device. I shall have to revise my opinion! :D

  3. Anonymous says:

    nooooo- don’t you know noisy kids toys are supposed to have batteries… so parents can use the “no you can’t use it honey- we don’t have any charged up batteries” excuse and save their sanity???!!!

  4. Anonymous says:

    fantastic idea

  5. Anonymous says:

    And what if we change the capacitor, that seem not to be good enough at storing energy, in order to improve the performance. I’m just wondering, because I do not have any knoledge on the electricity field…

  6. Anonymous says:

    I want that in all my childrens toys!!!
    And it looks almost perfect. Maybe you can find some flat heat screws… but it’s already a wonderful, eco-friendly idea!!!

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