These photos show the magnetic service connector for the ELERIX EX-L12V100R.
The opposite part of the connector is supplied with the packing of EX-L12V100R. Optionally you can purchase another connector separately.
GWL/M-5P-MG - 5 Pin Magnetic Connector (Set)
To make the service cable, you can use the ready made cable
GWL/M-C5w - Balancing Cable - 5 Pin With JST XM Connector
To read the data, you can use the BG-8S Smart Checker
ISDT-BG-8S - ISDT Smart Battery Checker
Ready to go?