D'après le mode d'emploi du Jazz disponible ici (http://www.dream-models.com/docs/Kontronik-JAZZ.pdf), c'est même recommandé :
"The use of a 4 cells receiver battery pack is recommended (see safety information).
The pack is connected parallel to the speed control into a free place of the receiver.
This rice the reliability of the receiver due too double safety. A loading of the battery
pack is not possible, so be sure that it is full – load in time!"
Et la "safety information" dit :
"Also when a BEC is used its necessary for liability reasons to use a charged
receiver battery with enough capacity in parallel (see BEC). Without this, a single
fault like broke wire, broken battery, loose contact or a defect of one electronic
BEC part can come to the total loss off the receiver system. The system has to
be tested on the ground before the first flight, to be sure that the BEC capacity is strong enough for this application".
Donc c'est tout bon !