RE: On/Off switch failed resulting in crash
I run LiPo and LiFe batteries in the planes with "failsafe" switches and honestly , although there is a drain when idle like Andy stated ,I haven't had a problem or noticed any increase in charging times as I leave the batteries plugged in all of the time until I see they are ready to be charged again and I fly quite a bit. I'm sure it does drain them some and for a casual flier it would be a good idea to disconnect before storing the plane.
Good Luck. I'm sure you will find something.