I may have damaged that 4s battery by running it in the Mojaves. They are too heavy to run on 4s. They always got hot.
No problems on 6s with the same gearing.
Now i have the same issue with the Asugas.
They all have the 4985 motors with
Max 6 or
MMX8S.
I wonder where the phrase' Volt up, gear down' comes from, since higher voltage equates less amp draw. My experience thus far is that i can run taller gearing on higher voltage.
That gearing chart is for stock motor systems. I have everything overpowered, so my chart is trial and error. Lots of errors.