RE: DX7 TX Charge/Discharge
I use ONLY the wallwart chargers on my JR stuff - and the batteries run a loooong time per charge . early JR used 600 macells but present stuff uses highe r ma types and simply charging with the supplied wall warts for long periods as recommended - will allow clls to put out max capability
NO need to do the discharge /recharge stuf that has preoccupied some for years
-I use A123 for rx and stock NIMH on tx and I can fly for long periods and the tx batts last for years I never futz with charg discharge cycles anymore except for initial charge.