I have a blimp that uses a Jeti 180 speed controller w/bec and a tail fan controller that is reversible. \they both are tied into the same 1600mah 6 cell. When I use the tail motor and teh fans at the same time it is tripping the bec and turning off the main fans. Does anyone know if putting two speed controllers on the same battery is bad? would adding another cell help. (upping it to a 7 cel pack. )

thanks in advance for any advice