airtronics rd 8000 CHARGING
JR transmitter charge plugs are OPPOSITE polarity from Airtronics, Futaba, and Hitec. To address your other question, you can fast charge the battery in place in the transmitter ... I have always felt it was safer to fast charge with the battery out of the transmitter. I have flown the Airtronics Infinity 660 series for several years and now have a Stylus and the battery is made to be removed quite easily from those .... as a matter of fact, I believe Airtronics even suggests fast charging with the out of the transmitter. I must admit, though, I have never had any problem associated with fast charging and I have used AccuCycle Plus in the past and now am using a Sirius fast charger.
Again, the polarity of the JR transmitter leads is OPPOSITE that of Airtronics, Futaba, and Hitec.