Review on 509 Anti Fog Goggle Fan Size by Patrick Pearson

I like the defroster fan, it works well. I've used it about 4 times, I also bought 509 goggles, a helmet that said the problem I have now is that the battery cover doesn't stay locked if it falls off while riding, it hinders the view and makes them insecure. Looks like the latch holding the lid on the latch is broken. I took some photos and was wondering if I could return this defroster for a new one? And how to get it back.