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Home > BrainStuff > How can an electric toothbrush recharge its batteries?
Podcast: BrainStuff
Episode:

How can an electric toothbrush recharge its batteries?
Category: Science & Medicine
Duration: 00:01:47
Publish Date: 2015-06-29 19:35:55
Description:

An electric toothbrush gets power from its base without the help of metal contacts. Find out how this sealed system works in the following podcast from HowStuffWorks.com.

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