Originally Posted by
ScottyM
You need to research your info better. The Rx that work for the 3pk will work in the 4pk as well, and they are 100% okay to run high voltage unregulated LiPo packs.. I have been for 2 years now.
Ah my mistake, thanks for the correction ScottyM. In that case, the Futaba webpage needs better info
. Only the R614FF page mentions that it can handle 8.4 volts (full lipo charge). Most of the others only say 6 volts.