Hi, I have an Axe CP and was wanting to upgrade the battery. I saw this (Great Planes LiPo 11.1V 910mAh 15C) on Towerhobbies and was wondering if it is worth it. The stock batteries just aren't doing it for me anymore! If i get these batteries or similar is there anything I need to do to install them? I can hover pretty good now, so I need more flight time. Anyways, thanks alot.