4.5 Lead Acid Battery Installed In Vehicle Maintenance
WARNING: This page is about a different car, the 2019 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.
The startup battery must be tested every 30 days and re-charged if required, in accordance with the battery test process utilizing a JLR approved tester. Refer to 'EQUIPMENT' (5) of this procedure.
The startup battery must always be connected to a battery support unit during any diagnostic sessions, including software updates.
For additional information, Refer to: BATTERY SUPPORT UNIT CONNECTION PROCEDURE