We built a small boat and the batteries are dying quick! Only lasting about five minutes, and that is with the boat on the workbench, not in the water, so the propeller is just spinning freely.
The motor is a tiny brushed 1.5-3 V motor. It comes in this kit along with the propeller. https://www.amazon.com/dp/B077WWS63B/ref=cm_sw_r_cp_api_i_BnVxCbXG0V1VZ
We are using a flysky FSI6x rc transmitter, and have limited the channel endpoints to 30%, to only deliver 3 V to the motor at full throttle.
The receiver is a FS – I 86B that runs on 4-8.4 V
That ESC is a hobby power 10 amp brushed ESC.
More about the esc:
Current(A):10A
BEC :5V 1A
PWM:8K
Input signal ：PPM
Driver frequency：2KHz
Li-Po :2S
Ni-Mh/Ni-cd :4-7cell
Continuous current 10A Max 20A< 30s Pulsed 30A< 5s
Without Brake
This ESC can work with 130/180/260/280/380 Brushed Motor
We are powering the ESC and receiver with four AA batteries. ( not rechargeable. )
I would have expected this set up to last longer than a couple minutes when not overtaxing the motor. Any thoughts?
Thanks!