This is a 9.6V Transmitter NiCd by Futaba.
This battery is for use in the 4YF, 6YG, and the 6YF Transmitter.
FEATURES: Eight cell battery pack in a flat, side-by-side configuration
Attached Futaba "J" connector
Three inch, Two Wire Lead
INCLUDES: One Nickel-Cadmium 9.6V 600mAh Transmitter Battery
SPECS: Length: 4-3/8"
Wire Length: 3"
Capacity: 9.6V, 600mAh
Slow Charge: 60mA for 15 hours
Fast Charge: 180mA for 5 hours
Weight: 180 grams