Battery voltage for separate rx battery

[RMatteson]

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Will a 6.6 life battery work ok
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Will a 6.6 life battery work for both 9 and 17g servos, as the power for my rx, instead of a bec. I want to do this to give the 2 motors all the lipo juice and not have the servos, lights and retracts put a drain on the lipos. This is for a Lx-B25, which is pretty loaded down for power. I wanted to use around 3000 - 4000 ma for power. I was hoping more then a 4.8 volt 4 cell nickel would be better. Just didn't want to over load small gear door servos. Any thoughts would be helpful.
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9

[fhhuber]

Without specs on the servos, don't do it.

While most servos can handle 6.0 v fine, the peak voltage of that 2 cell LiFe is too high and will burn many "4.8v" rated servos out.

Also check the specs of your RX because some can handle more voltage than others. Spektrum RXs in general are OK up to 9.0V but that is not true for all.

[RMatteson]

So a 4 cell 4.8 volt nickel metal would be a safer choice. Don't have any specs on servos, but running a 9 channel Secktrum rx.