I received my refurbished phone a couple days ago, and haven't seen my old one back yet. My question is...how much would verizon charge for the battery if I kept the one from my old phone as well? Everything I've seen says you're supposed to keep your old battery and sd card as the refurbished ones don't ship out with them. Mine did though, so I just wanted to know if it'll be an exorbitant amount added to my bill or not if I do decide to keep it. Thanks in advance.