I just got my replacement phone in from Asurion and was wondering if I could keep the the old battery, that way I would have 2 batteries . I looked at the instructions and it says to place the damaged or defective phone in the envelope, no where does it talk about the battery or accessories, so technically I could keep the battery right? Also, the envelope is so small that there is no way I could fit the charger in it, so I guess I get to keep the charger. I was wondering if anyone has kept their old battery without any problems, I dont want to get charged the non refundable 500 dollars for not returning the battery. Any advice would be appreciated.