GTMax Green USB Mini Car Charger Vehicle Power Adapter for Barnes & Noble NookColor Ebook Tablet

I took a chance and tried this with my NookColor, using the NookColor cable. This gadget does 'work,' but what the NookColor indicates, under 'About This Device,' is 'not charging.'

So, it didn't actually DIScharge it, but... didn't charge it. I tried it in two different vehicles.