I just got a new I1BE, i upgraded to the latest firmware as soon as i got it. Do i need to do anything special when my new TB48 batteries arrive, right now i just have the TB47 and the life of it stinks, maybe 14 minutes max if that. When i did the original firmware upgrade it said it would upgrade the TB47 battery automatically. I dont have the original BIN file from the website either. Confused.