a dedicated RX/Servo to 4mm banana plug charge lead used to safely charge receiver (RX) batteries. It features a Futaba-style plug on one end (to connect to the battery) and gold-plated 4mm banana plugs on the other (to plug into your battery charger)
1: Futaba (Receiver/Servo) Female Plug
Standard 4mm Banana Plugs (Red for positive, Black for negative)
Specifically meant for charging NiMH, NiCd, or LiFe receiver packs directly on a standard charger;