Battery and motor amps problem
09-30-2014 | 03:10 AM
#1
Thread Starter
Tech Rookie
Joined: Sep 2014
Posts: 1
Battery and motor amps problem
Dear all,
I recently bought an 1:10 electric buggy, which is my first large scale rc car, and while it's being shipped, I went to a nearby hobby shop an purchased a 7.4v 2S 4000mah 30C (burst 60C) Li-Po battery. According to online information 4Ahx30C=120A. Does that mean if I am planning to upgrade the motor and esc to brushless, I have to find those specifying 120A or above? If I have a 60A brushless motor with the 120A battery will the battery cook the motor and destroy my setup? Or does it work the other way?
Many thanks,
I recently bought an 1:10 electric buggy, which is my first large scale rc car, and while it's being shipped, I went to a nearby hobby shop an purchased a 7.4v 2S 4000mah 30C (burst 60C) Li-Po battery. According to online information 4Ahx30C=120A. Does that mean if I am planning to upgrade the motor and esc to brushless, I have to find those specifying 120A or above? If I have a 60A brushless motor with the 120A battery will the battery cook the motor and destroy my setup? Or does it work the other way?
Many thanks,
10-01-2014 | 04:08 AM
#2
Tech Champion
Joined: Oct 2007
Posts: 7,342
It works the other way. A 120A battery with a 60A motor is fine. Don't want to max out the battery, want to have extra capability. Same for the ESC, want a little extra to be safe.
Ideally:
Battery amps > ESC amps > motor amps
Although the motor maximum amp value isn't always readily available for RC motors.
Ideally:
Battery amps > ESC amps > motor amps
Although the motor maximum amp value isn't always readily available for RC motors.
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