Just bought a cirrus on board battery checker 5 cell S connection part no 444763. I absolutely can not get it to work with my R700 JR reciever and jr 4n1100 4.8v 1100mah batttery. I have modified the connectors so black and red match up when I connect it. I know that it does work because when I turn the switch on the plane on and off the lights light up for a split second. I even connected it to the charger and the lights light up. I have tried this on both my planes with the same jr set up and it does the same exact thing. Took it back to the hobby shop and they could not figure it out. Took another one out of the package and also did the same thing. Anybody have any ideas or ever ran into this problem with the cirrus checker?