Impeccable timing. Last Monday (a week ago), I just had the starter battery die and was totally caught off guard. Fortunately it was in front of my house. Wish this thread existed a week ago but I ultimately YouTube trained myself and connected a charger to the starter battery. Was then able to lock/unlock, etc... I charged the starter battery overnight with a 6A charger. In the morning it was acting normal. Took it to the dealer and today they finally got to running the diagnostics on it (3 other I-Paces ahead of me for the same issue). This is a 02/19 car so pretty sure the batteries are just old but since it's still under warranty, they wanted to run all the tests. So now I wait a few more days for replacement aux and starter batteries to arrive. Then they run the same tests again to verify before releasing it back to me.