Old 03-10-2011, 10:19 AM
Super Contributor
Join Date: Oct 2005
Location: N.Staffs, UK
Posts: 2,350

I guess you're talking about in the plane and you mean the 4.8V battery that came with the radio vs the whatever it is battery you intend to connect to whatever ESC you're using. Yes ?

For real details you'll need to tell us what ESC and batteries you mean.

Most relatively small ESCs have a "BEC" function which means you don't need to use the other separate battery at all. The main battery powers the Rx and servos as well as the motor through the throttle channel on the receiver.

On bigger planes/ESCs that's not necessarily so. If the ESC doesn't have a BEC then you can just plug your normal receiver battery in the BATT slot on the receiver and connect the ESC to the throttle slot.

There are also a few other variations so let us know EXACTLY what ESC and battery it is you're talking about.

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