Contents
Should the ESC rating be bigger than the battery?
The batteries should be rated for the same or higher (continuous) current than the ESC, which should in turn be rated for a significantly higher current than the motor. The rule of thumb is: Never draw any more current than whatever you’re drawing it from can supply. Also, motors can draw more current than they should.
How much power does ESC draw?
Most ESCs will have ratings such as ’30 amps’ or ’25 amps’. These numbers generally represent the sustained current the ESC can handle. For short periods of time, generally less than 10 seconds, ESCs can handle slightly more current.
What ESC do I need for my motor?
The ESC can be selected based on the voltage and the peak current rating of the motor. A simple rule is to choose an ESC with atleast 5A more capacity than the peak rating of the motor, since you may be powering servos, receiver and other accessories from the ESC.
What does the C mean in RC batteries?
The C rating for a LiPo battery, quite simply, refers to the capacity of energy the battery can safely discharge, represented as a multiple of its overall capacity. A 20C pack of the same capacity will safely allow you to draw 40 amps from it continuously. That’s the same capacity and twice the amp draw.
What is the C rating on a battery?
The battery C Rating is the measurement of current in which a battery is charged and discharged at. The capacity of a battery is generally rated and labelled at the 1C Rate (1C current), this means a fully charged battery with a capacity of 10Ah should be able to provide 10 Amps for one hour.
What happens if ESC voltage is higher than motor voltage?
Maximum voltage of ESC should not be higher than what the motor can suffer. Current in ESC is larger than motor. If the discharge current cannot reach the required value of ESC, then the ESC won’t work on its highest performance. Moreover it will cause battery temperature raise then explode.
What’s the maximum current a lipo ESC motor can draw?
For a 20C battery with 5000mAh capcaity, the maximum current that can be drawn is 20*5000 = 100000mA = 100Ampere. Chose a battery with higher current rating than the peak current draw of the motor.
What kind of battery do I need for my ESC?
Your ESC is rated for operation at 6-12V, which suggests that you could use a 7.4V or 11.1V Lipo battery. Battery capacity and ‘C’ rate should match the expected current draw and run time. For example if the average current draw is 15A and you want to get 10 minutes then you need at least 15*(10/60) = 2.5Ah or 2500mAh.
What happens if the discharge current of a battery is too big?
If the discharge current cannot reach the required value of ESC, then the ESC won’t work on its highest performance. Moreover it will cause battery temperature raise then explode. Therefore normally the discharge current of battery should be bigger than ESC’s.