An electric toothbrush can be charged by induction, which means that the toothbrush can also be waterproof.
Now I would like to try to charge a waterproof remote control using the same principle. Now my only question is, how heavy can the battery to be charged be?
You place an electric toothbrush on a holder and it charges without the water posing a risk. The idea is that you can place the remote control on a plate and charge it without any danger from water.
Answer
I don’t understand what you mean by ‘how heavy’ a battery should be.
But your trick won’t work because there’s no coil in your remote. So there is nothing (or little) that can pick up the electromagnetic energy to charge the battery. Such a rechargeable toothbrush is actually a small transformer with one coil in the charger and the second in the toothbrush. That second coil is not present in your remote.
Answered by
Prof Walter Lauriks
Physics Acoustics
Old Market 13 3000 Leuven
https://www.kuleuven.be/
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