Ok so today i went into Verizon to pick up my Droid Bionic at the open of the store i was the first one there an got the first phone. Now here's my deal, I was just gonna use my upgrade an buy the phone. Well my lovely parents who i just taken out to dinner wondered into the Verizon store an spoke with a sales person while i was preoccupied with my person. So anyway, when the guy went back to grab my phone I saw my parents an they said my dad was looking for a new phone. I thought that was fine because we now have all our lines open for upgrades. SO anyway as he brought my phone out an I wanted to just be given the box (I.E. not have him touching anything, idk why but i was like paranoid for the first few hours with it haha) we got to talking. Well during this time my parents must have found out what phone i was getting when they're sales associate an mine were in the backroom together...kinda think my parents send him back there to find out haha. So anyway i got my phone an on my way out my parents stop me at the door to show me a accessories pack they got me for my phone, for my Birthday. (which is sept 13th) I got a few things an one was the extended battery. So now heres my question unthinkingly i charged up the regular battery while i was at work leaving my phone at home all day. The thought occurred to me when i was elbow deep under the hood that..."Oh man should i be fully charging this battery when i'm gonna be using the extended battery?" How do you guys think i should store this battery? Fully Charged or should i use it till it dies then switch back over to my extended? Just curious on what the proceeder is.