Originally Posted by
JSF-TC
Jeti 5200mAh Li-Ion, sitting at 7.2V during the run as shown in the plot above.
I can get at least 5 starts and flights from it before needing to recharge. This run was fresh off the charger.
I have exactly the same battery set-up with my other M140XBL, and it holds 130,000rpm indefinitely.
Paul
Right, just noticed the plot has that now, never seen these new ones and old ones did not show voltage.
Looking at the plot, it seems like the ecu is actually commanding the pump to slow down for some reason, so I wouldn't be looking for restrictions or pump problems. Seems to be either a software issue or some failsafe mechanism kicking in. Is that temperature level normal? It seems a little on the high side, but I don't know the m140 numbers. KT engines display 200 to 300 deg less than that at full throttle, but 700 is not that high either... When you figure it out let us know what the problem was!