Charge a battery through a nonconductive material?

Sep 17, 2005 5 Replies
J

The charging base and the bottom of the toothbrush are two halves of a transformer that pass A/C current.

JazzMan

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J

I just added another low end electric toothbrush (Oral-B PowerMax) to my collection.



It is rechargeable. As far as I can tell there are no metal contacts on the outside of the toothbrush casing where it slips into the charger, but it does charge.



Is it charging through a conductive surface that looks like plastic, or is there some (practical) way to charge a battery through nonconductive material?



Mainly curious.


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R

They use inductive coupling, ie 2 coils.

Regards ......... Rheilly Phoull
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J

Cool.

Thanks to the replies.

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J

to

It's called induction it's the principle upon which transformers work, while plastic won't pass electric curren it'll pass magnetic fields just fine.

Bye. Jasen

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J

It's called induction it's the principle upon which transformers work, while plastic won't pass electric curren it'll pass magnetic fields just fine.

Bye. Jasen

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