Originally Posted by
gigaplex
More food for thought: same motor, Hobbywing G4 13.5 in both these tests.
Only difference between these 2 runs is the Tunalyzer test voltage was changed from 7.4 to 3.4. No idea why the current would be higher on the lower voltage. Also, why 3.4? 1S voltage is 3.7.
I asked a question similar to this a few years ago. The answer was it had to do with the power output of the motor. It stays the same no matter the input voltage.
Edit: To expand further, if the power is the same for 3.4v and for 7.2v and power = torque x rpm, but the rpm drops, then torque needs to increase. Increasing torque will increase current. But the analysers are measuring unloaded so torque should be near zero. Maybe your bearings are bad?