@asterix, recht, aber ich habe doch 5 zellen, Emanuel hat 4 zellen mit nur 1400 kapzitat.
meine zellen sind 2000 sie haben mehr kraft, mehr kraft und mehr zellen .
sorry i dont know how to say in german.
Because nominal voltage is higher, servo need less amps to move.
thats the reason why i said i would not go over 3 hours, without begin risky.
If the battery voltage drops, the servo will need more amps to reach the movement and the speed.
defenetly i will not go over 3 hours.
But it depends a lot of the conditions, windy or not.
anyway, usualy when i start with new battery or new model, i fly gently, than i discharge the battery to know how much i consume.