This is the NR4J Rechargeable NiCad Receiver Battery Pack for Futaba or compatible J style Radio Systems. This battery pack is shrink-wrapped with wire and connectors pre-installed.
Includes: One Receiver Battery Pack with wire and J connector
Weight: 3.3 ounce
Cell Size: AA
Note: Slow charge rate 60mA for 15 hours and fast charge rate 180mA for 5 hours. These used to be 500mAh, but are now rated at 600mAh (6/00 NMH).