Hello all, I find myself posting in this sub-forum for the first time so I hope I'm in the right place. Anyway... I came across this cake stand with led lights and it doesn't come with batteries for the led string lights. I already bought it and asked the seller what type of batteries it takes. All I got was a response saying "The fifth battery." Now I've never even heard of such a battery before. The seller is from China and I'm in the USA so idk if that is a special battery over there. Do all led string lights use the same batteries or do I have to find specific batteries for the lights on this particular cake stand?