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Old 11-07-2020, 09:27 PM
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tedsander
 
Join Date: Jul 2004
Location: White Bear lake, MN
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Use a LiFe only. A LiPo will be too "hot" (high voltage) for the receivers/servos. But a LiFe, while pushing the voltage a bit, is fine with the radio gear. Also get a Tech Aero IBEC (Ultra IBEC - Tech-Aero Designs LLC). Besides being a great ignition switch, and fantastic RF isolator, it has an in-line voltage regulator, so you can make sure the voltage going to the ignition never exceeds the 6v.
My 40cc with 5 high torque servos gets about 8 12-14 min. flights from a 2400 mah pack. Of course, your mileage may vary a lot from mine....