PaPa,

I don't know if I would call it brittle exactly, but monokote does get stiffer and is more easily damaged when it gets cold. Off runway landings seem to make more repairs then.

Don't go by the transmitter meter to determine when your battery is fully charged. It may well say 100 with a half charged battery. But it is safe to use it to tell you when not to fly. Don't let it get down to the red band. We usually don't fly with the meter below 80-85.

Did you check out the rcbatteryclinic website?

Larry