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Posted by captain MoMo | May 30, 2019 @ 09:39 PM | 848 Views
This is how I add the external BEC to an OPTO (meaning there is no internal BEC) ESC.

Note that if the ESC has an internal BEC you will need to remove the red wire from the lead going to the RX, otherwise you will have two conflicting voltages and burn something up.