Yes, probably. It is certainly one of the systems trying to power up, such as the alarm, which draws too much current for the battery to support which cuts the power so you get this cycling.
I would recommend you disconnect the battery from the vehicle until it is charged up and then connect it back to the vehicle - and be prepared for the alarm to go off if it was previously armed when the battery went flat.
I had already replied to your other identical posting - which I've now removed as there is no need for duplicate posts.