I'm having a problem with one (or possibly more) motors "sputtering" under high load. Changing directions hard, high throttle when falling, etc.
Some points of interest:
- NTM 1200 kv motors
- HK F-20 ESCs flashed with simonk
- 3s battery
- Quadrino Zoom 1E
- running 2.0 release with the config posted on the quadrino site
I've adjusted and calibrated everything. It all runs super smooth. baro, acc modes work flawlessly. No drift. No yaw. Very solid. However, on a fresh battery, under high load one or more motors will sputter usually resulting in a crash unless I'm at high altitude and can recover.
The most interesting part is that the problem goes away completely as the battery drains. After flying for maybe 5 minutes I cannot get the issue to recur until I swap out for a fresh battery. I've been able to reproduce this with regularity over the span of about 10 flights and three different batteries.
Also, I cannot get the issue to happen on the ground. I can hold the copter down and floor the motors and they spin solid. It only happens in flight, and only on a fresh battery.
Any ideas? It's driving me crazy.