?! Please show me your solution with photos, if you have integrated this bottom bracket sensor in an existing middrive housing!
The T4 sensor is very fragile, you better would use a T9...
I still don't understand your aim. What do you want with 70 amps in an TSDZ2??? It will glow in a few minutes.... If you manage to bring the heat away, the mechanical parts will be broken within a few days, as they are much to weak for higher torques...
Lishui has a new generation of controllers up to 2kW:
LD-LS82 - bis 2000W -60V
https://www.pedelecforum.de/forum/index ... df.402866/