Huh, apparently modern toothbrushes are compatible with qi-standard
@elly okay what
@fossdd I was annoyed that charging stand they give you is only compatible with region where you bought it (wish I knew it was just wireless charging when I was in Japan), but it was somehow compatible with two different charging stands (some supermarket special and philips at friend's places).

That got me thinking it had to be some sort of standard, so I placed it on top of PinePower next to friend's couch... and it just worked lol. It's really handy to know
@elly thought this was a switch at first and was Very Confused as to why would one have wireless charging functionality
@elly you mean to tell me i could use my phone's reverse wireless charging to charge my toothbrush? 
@CIMB4 I didn't even think of it... yes!