This is a 9.6V Transmitter NiCd battery, it is a direct replacement for the Futaba FUTM1440.
It has nearly double the capacity of the original Futaba model (1000mAh vs 600mAh), but is the same size!
This battery is for use in the 4YF, 6YG, and the 6YF Transmitter.
Eight cell battery pack in a flat, side-by-side configuration
Attached Futaba "J" connector
Three inch, Two Wire Lead
One Nickel-Cadmium 9.6V 1000mAh Transmitter Battery
NiCad compatible Charger
Wire Length: 3"
Capacity: 9.6V, 1000mAh
Weight: 180 grams