This is a Square NiCd Receiver Battery Pack for Futaba J Receivers.

INCLUDES: One NiCd Receiver Battery Pack w/J Connector

SPECS: Length: 2.00"
Width: 1.12"
Height: 1.12"
Weight: 3.3oz
Ampere: 600mAh
Volts: 4.8V
Charging: 60mA for 15 hours
Quick Charging: 180mA for 5 hours

COMMENTS: These used to be 500mAh, but are now rated at 600mAh (6/00 NMH)

Futaba

Part FUTNR4QB