Quote:
Originally Posted by BrianG
As long as he removes the red wire in the throttle cable and uses an external BEC, it should be ok. Regulators generate heat with a combination of current and voltage. If voltage is high, but current is low (the brains don't pull much at all), losses are minimal.
The formula for wasted BEC power is (Vbat-Vbec)*amps. If the battery is 14.8v, but the amperage is, say, 50mA, lost power is (14.8v-5v)*0.05=0.49w. The BEC is only powering the brains, which don't take much current at all. Even on 2s, the losses can be high depending on the servo. For a typical setup with a servo that draws 1A average, the power loss at 2s would be (7.4v-5v)*1A=2.4w. So really, a BEC should be used even when only 2s is used on the BEC. Obviously, I'm assuming a 5v bec voltage here.
Futhermore, the BEC in the EVX is the same type as in a MM - linear. And we all know the MM runs all day long on 4s as long as the red wire is pulled.
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Yeah, that's what I meant to say
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