Hey fellow phantom flyers. I recently moded the battery opening on my P1.1.1 to fit the multistar 4000 mah batteries. The batteries work great. The problem is my phantom is now sitting on the bottom of the Savannah River after an incident this weekend. I have decided to replace her with a P3. So.... my loss is your gain. I have five multistar 4000 mah batteries only flown a few times each for sale $70. I'll include a shapeways large battery door with cutouts for power cables and i'll pay the shipping. Let me know if anyone is interested. USA only.