J
John Doe
- Jan 1, 1970
- 0
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.
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.