The flights are the same length as normal and even doing FAI in the TEN minutes the mah draw is like stated above 50-65 mah per flight.. Thats why a 340 mah pack at the NATS was used..I'm using a 2 cell Tanic 780 mah pack with 15c and 20c burst in to a voltage regulator at 6volts..no problem and I know a bunch doing the same.. Yes charge outside the plane or like me I have two packs for RX and can fly alot if needed.. The scare of lipos and charging is just that.. Get good cells and a good charger.. The latest fire by lipo is where the pilot put on charge and forgot about it and had a issue, must have not been a good charger..
I'm not looking to put the flame suit on for above, just know what works for me and many others doing the same..
The other issue is less wear and tear on servos with electric planes, the servo pots are not wearing out..

well need to charge packs and go do a flight demo today..

Cheers..

Scott Anderson
Team Tanicpacks.com
Team Castle Creations