I am having a problem using this unit on a Moki 1.8 using an FM receiver. The glowlite runs on a 1900ma single cell battery and plugs into the trottle servo using a y-harness. The glowlite automatically turns on with the rx switch. I am having a problem running a 5 cell 1800ma battery on the RX and no problems with a 4 cell 1800ma 4.8V battery. I am getting a tun of interfereance with the 5 cell and sometimes no response from any servos with the engine running or not. Servos move very slow if they work at all. This plane is unflyable with the 5 cell. Hope someone can help.