Well I love my DX3R radio but I hate having to carry extra batteries or a charger for AA batteries. I looked around and didn't have any luck finding a charger to plug into the charging port on the radio. I did a little digging and found the cigarrete lighter adapter for the TRX power system, the charger setup for the rx pack on the nitro revo. The plug fit right into the radio. I used a multi meter to verify that contact was being made and figure out which wire was positive and which was negative. Cut the plug off and soldered up a deans connector to plug it into my hyperion charger, just set it for Nimh 4s and I use a 1-1.5amp charge rate. That keeps the batteries cool and happy and assures my batteries are charged between races.