JST Connector
This is also called as a BEC connector and is commonly used with battery packs for RC applications. The connector is keyed so that the power can not be reversed. A crimping tool can aid you to attached the metal connector to your 22- to 28-AWG wires.
You can view the picture to get the actual size of each connector.
This package includes:
- 1 male connector
- 1 female connector
- 2 male crimp pin
- 2 female crimp pin