If I take off the outer sticker, will it work in my Prodigy V3.1? I have one coming in the mail in a day or two with the 6V configuration because I figured I have some 3.7V batts and charger so I might as well just get the other config. Are the AW17670P ones the ONLY batteries that work with the Prod? Or are there any modifications I can do to make it happen with the ultrafire?