Originally Posted by John Kim
I am happy with Turnigy 9X as it comes. I am not a technician and I don't know how to use such a gadget, anyway.
Only modification I made is 2S LiPo battery instead of 8AA. It keeps beeping to warn low battery voltage. I don't mind. It reminds me that TX power is switched on.
John, I've seen you post on RC Model Reviews, so I know you know about the resistor mod that XJet has posted there to change the low battery alarm for a 2S lipo: http://www.rcmodelreviews.com/tendollarbattery3.shtml