References the commercials . It ' s supposed to be spelt the waaay it sounds . <| sep |> I had the same problem . Let me ask you this Do you always wear glasses ? I discovered when I switched to contacts that my hair on the sides grew longer . The hairs were breaking around the earpart of my glasses , because of the plastic that covers the frames and at the joints because of the metal screws . So you have two choices switch to contacts or buy glasses with smooth frames . Good luck with the long hair <| sep |> 18650 battery carries the same charge as about 5 x AA and can deliver way more current . Depending on chemistry , the max discharge can be around 5 to 10 amps about 1937 watts . The result is these batteries can create more heat and faster than typical AA battery .