This is a NiCd battery used in many older Futaba transmitters. If the radio is not listed, this battery will probably be the one used for those older radios.
This battery lists for the following radios 4 CH: 4FG, 5 CH: 5FGK, 6 CH: 6FG/K, 7 CH: 7FG and 8 CH: 8SSA, also 8SGAP.
Includes: One 9.6V, 500mAh Transmitter NiCd Battery with White Connector
Note: The connector on this Tx battery is a small white connector with two tabs molded onto one side of the connector. This white connector is not available separately.
This will look as though there are 9 cells in this pack, one cell is a dummy cell, and it is made this way to fit correctly in the radio.