RRC 7.4V 2800 2S TX packs. Yes, this pack will fit in your Aurora 9 and the Airtronics SD-10G. These are lower C rate high energy density cells perfect for low drain applications like transmitters. This pack generally fits inside any TX that was made to hold a 6 cell flat 7.2V AA size TX pack.
Size: 3.71" (94.25mm) Long x 1.21" (30.6mm) Wide x .7" (17.8mm) High.
JR Z plug (like servo or RX battery plug for JR, Spektrum, Hitec, New Airtronics) is included on the pack. Balance plug is the ever popular XH Balance plug (like 75% of all packs made).