With all this talk about making sure that reciever battery is always charged to avoid any risks, is it bad to keep the reciever plugged in all the time when I'm not flying? Also is it bad if I do some work on the plane and run the servo's for a little bit(lets just say for about 10 minutes) then I put the battery back on charge. Will this hurt the battery in the long run? Whats some good charging practices?