Is there any replacement glasses!available?

After giving up on this thing, I've recently bought a LG C1. It seems to be working with it better than any other TV I've owned in the last few years. Sadly, I can't seem to charge the glasses, even though I've never really used them. (No charging LED on them.)

Has anyone ever found replacement glasses that work with the Edison 3D Family? Hopefully cheaper than the stock ones!