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T-REX 450 › 450 Question Electronic
07-07-2008 05:00 PM  9 years agoPost 1
rcchauffeur

rrApprentice

Vancouver BC

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[U]The helicopter is almost ready to take its maiden flight but before doing so I have 2 BIG questions.

Here is my question (1): Since the ESC RCE-BL35X has a BEC, how am I supposed to connect the ESC to the Rx to use that BEC. I do not see any other connector but the one for the speed controller, that would fit on the Rx. Do I have to connect this terminal to the BATT on the RX or what?

Here is my question (2): If I want to use a separate battery pack for the Rx and NOT use the BEC, what do I have to do to eliminate that BEC?

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07-07-2008 05:18 PM  9 years agoPost 2
helimatt

rrElite Veteran

Lafayette, IN

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Using the built-in BEC, the ESC will power the receiver and servos through the 3-wire lead that you plug into the throttle channel of the receiver.

If you don't want to utilize the BEC built into the ESC, then clip or remove the positive wire from the ESC so that it does not plug into the receiver. Then the external bec or receiver batter will plug into the battery port of the receiver.

I'd just remove the terminal from the plug connector housing, and heat shrink over the terminal, or tape it, to prevent shorting. That way if you elect to use the built-in BEC later, you can just plug that terminal into the connector again.

Never, ever, ever, ever give up.

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07-07-2008 05:37 PM  9 years agoPost 3
dmkc929

rrApprentice

Illinois

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??

Just use the internal bec or get an external. Not much room for another small lipo on a 450. Weight matters on that heli. Go with a micro bec. There the best.

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