ok so i've been on this battery-operated tealight hunt for months, it was tough trying to find them at a solid .50 cents each, i tried orientaltrading.com, ebay, and a bunch of other online stores but the lowest they were at was .75cents each.but my search is over. Dollar Tree now has them at a bunch of their locations for $1 you get a pack of 2. I ended up purchasing 70 of them because i'm thinking around 10 or so won't end up working. if your ceremony or reception site doesn't allow real flames, definitely consider getting these, they are super cute and the little bulb flickers just like a real flame
