00 00 ... Battery: checking acid level and charge state. If necessary, recharge battery.
IMPORTANT:
Observe safety instructions for handling vehicle battery. Refer to 61 00 ... SAFETY INSTRUCTIONS FOR HANDLING VEHICLE BATTERY
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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.