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Old 12-26-2009 | 04:32 PM
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Velco
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Default RE: another dumb question, how do you know


It can not be too big, just that bigger is heavier. If you combo is pulling 50A static the ESC should be 20% bigger, hence 60A. Also if it has BEC (battery elimination circuit) it can supply the receiver and the servos with power. If it is Opto then you need a separate battery.

Here is a method I use to determine any setup, and it really works great:</p>

http://www.rcuniverse.com/forum/fb.asp?m=9354605</p>
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