The original Phylion XH370 battery for Veloci, suitable for the Spirit, Connect, Lite etc. models, among others.
The latest generation XH370-14J is 100% compatible with its immediate predecessor XH370-13J as well as the older generations XH370-10J and XH370-12J.
The XH370-14J is available with standard or smart Battery Management System (BMS). Check
here
in 3 steps which XH370 is suitable.