I bought a plane that came with a JR 1500 Nimh battery. I am still unfamiliar with the differences between Futaba and JR. My question is the JR battery has a three lead wire coming from it (Brown, Orange, Yellow) but my charge leads for the charger I use is only a two lead with black and red. If Im not mistaken (correct me if Im wrong) the extra lead on the JR isnt for anything. Which way do I hook the battery up to the charger and to the receiver. Isnt the Brown on the JR supposed to go with the Black on Futaba?