Yeah so even at full throttle you’re not usually drawing full power from the battery. It’s only really full throttle at full speed that would draw max power, hopefully the distinction doesn’t sound too nitpicky
Pushing 70A through a motor that’s not rotating is comparitively quite easy. Pushing 70A into it when it’s spinning at 5-10krpm is much harder because the spinning magnets in an electromagnet field create a voltage against the supply, referred to as back EMF. If you want an explanation from the perspective of the ESC check out the thread below
What this translates to is veeery roughly:
- Throttle = motor current. Full throttle, you’re at your motor current max
- Battery current ≈ (current speed as a percentage of max speed) X (motor current)
If you have a logger (metr, robogotchi, ilogger, the VESC app paired to a phone) then you can check how much current you’re actually pulling