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Old 09-06-2021, 10:29 AM
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Join Date: Oct 2010
Location: Ex UK Brit now in Latvia west coast - Ventspils
Posts: 12,829

OK .. there's theory and there's practical ....

Linear BEC's will quite happily work together .. they don't care as the power supplied is a linear steady flow. I have many models with multiple Linear BEC's with red pins still connected. There is a possibility that having all connected - may give a failsafe factor if one BEC fails ..

Switch Mode BEC's as Ron says rely on pulsed / switched power supply and it is possible for one to affect the other causing one or both to 'malfunction' ..... strange thing is though - BY MISTAKE I have 3 models with SBEC multi set-ups and the red pins were left in ... with no ill effect at all ... each works perfectly.
Some people use a low loss diode or other divider to allow SBEC's to be used together - again possibly gaining a factor of failsafe if one fails.
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