You can purchase different spare batteries for your PR110 or PR111 electronic cigarette kits. We have regular White, Metallic Silver and Black color batteries and we also have three new models. Gold, Burgundy and Metallic Green colors can be purchased on this page. PR110 is a shorter battery, and PR111 is slightly (10mm) longer. The only other difference between the two models is that PR111 battery takes slightly longer to discharge than PR110 model.