00 00... Battery: Checking Display. If Necessary, Recharge Battery.
IMPORTANT:
Observe safety instructions for handling vehicle battery.
Vehicles with low-maintenance battery:
Check acid level, top up with distilled water if necessary
If level drops below Max. marking, top up distilled water to Max. marking.
Vehicles with maintenance-free battery:
Check charge start by way of magic eye
Issue a separate invoice if the battery is recharged.