This is a reach, but I could see this as being something that would have a wider market than just my customer.
My customer is hot on the idea of wirelessly charging a battery. I'm thinking that, at their production levels, if someone Out There makes a module that'll handle the wireless battery charging part (i.e., the wireless power transfer, the battery charging, management, etc.), then I could just lick the back and stick it into my design.
So -- does anyone make it? Should I make it and go into production?