Olof, I have the s800 Zenmuse g15 w nex7 and the secraft retracts V2 and 2 nanotech 8000mah (6s). I am sure mine was hotter then 120F. Have you changed props? I am using the original props that came with mine.
Kou
I am running complete DJI stock everything. I do have the new dampening rig.
So my kit is:
S800 original arms from late 2012
WKM w/GPS
Zenmuse w/NEX5n
Iosd V2 update for a V1 (by factory)
DJI 5.8 Downlink.
2 Futaba RX one for Zen one for S800
Wibe reduction kit
Fixed gear
I use either 2 5500 or 2 6000 6S Lipos.
Total weight 6.7Kg.
Normal flight time 10 minutes or less, I can go 12 but rarely do, I usually land with 30-40% left on Lipos and I slow charge them at 2 amps most of the time. If I am in a hurry I will chrge them at 2S but only rarely, usually just 2 amps or max 6 amps.
I guess I am lucky, I get very smooth performance even in windy up to 20 mph gusts. I do fly very carefully, but even quite fast at times, with quick assents. But smooth is best. I have never had a vibration problem. The Zen is fantastic. I do run low gains and always slow a descent early and smoothly not with a huge burst of power.
I have checked my props they are all well balanced, I did not have to balance them. On smaller MRs I sometimes have to sand and add CA or even hot glue to my Graupners. But my stock DJI S800 props are very good.
I think the key is to not have one or 2 motors running hot, this is either a sign of bad CG or problems with the motor/esc. Like I said I carry an IR thermometer to check after each flight.
If you are running hotter than 120℉ I would investigate, and do something about it. Maybe you are above the 7Kg stated max t/o weight of the S800. I also should say I fly at sea level up to 1500' and ambient temp is generally 85℉ or less where I generally shoot. And I keep the MR in the shade when not flying, black motors even w/o running will get quite hot in direct sun. Flying the airflow will cool them.
Maybe someone in a hot area can check and post the temps their motors run at, trouble free. Like I said the big thing is that they are all even. And I live in New England.
