This is a replacement Futaba S10730 Slant Transmitter Battery Case, and is intended for use with the Futaba 2PB and 2PBKA transmitters.
This product was added to our catalog on September 3, 2009
Tuesday, Aug 28 2012 (about 6 years ago)
Futaba S10730 Slant Transmitter Battery Case (2PB/2PBKA)
Thank Goodness they are still making these, since they break about every 2 years :-) this will be my 5th one, so I hope they have improved the design, but I doubt it :-< The bottom of the pack breaks, and falls out due to the pressure of the springs against the batteries.