This started in a build thread, but I think it should be made its own as this is an important issue.
I am concerned with the wire sizing being used with the smallest battery combo (12S1P - two Bonka batteries). It seems that many of these batteries shipped with 10AWG wire instead of the expected 8AWG.
If the current draw of this machine is really 300A peak at full throttle, then it is dangerous to be drawing that much for any length of time from a single 10AWG wire.
Take a look at this ampacity chart. The FUSING current for 10 seconds is 333 amps. That means the wire melts! We should design to be far far away from this number! The insulation will likely fail at a lower value.
The results could be catastrophic. I really think that the smallest battery combo (12S1P) is too small for this application. Adding another set of batteries in parallel will likely resolve concerns and halve the current (so long as the harness is sized right that connects them). It is reasonable for a customer to want to fly full throttle and climb for an extended period - a use case that is in the danger zone here.
I suppose the first step is confirming the true current draw of the system. Anyone have a real measurement?