FORD 2003 Crown Victoria v.1 - Manual (Page 189)

BATTERY
Your vehicle is equipped with a
Motorcraft maintenance-free battery
which normally does not require
additional water during its life of
service.
Check the battery electrolyte level under severe usage. Refer to the
Scheduled Maintenance Guide.
If the level is low, add plain tap water. If possible, use distilled water. If
the battery needs water often, have the charging system checked.
Note: The electrolyte level in each cell should be at the “level indicator”.
Do not overfill the battery cells.
Keep the top of the battery clean and dry. Also, make certain the battery
cables are always tightly fastened to the terminals. If your battery has a
cover/shield, make sure it is reinstalled after cleaning or battery
replacement.
Batteries normally produce explosive gases which can cause
personal injury. Therefore, do not allow flames, sparks or lighted
substances to come near the battery. When working near the battery,
always shield your face and protect your eyes. Always provide proper
ventilation.
When lifting a plastic-cased battery, excessive pressure on the
end walls could cause acid to flow through the vent caps,
resulting in personal injury and/or damage to the vehicle or battery.
Lift the battery with a battery carrier or with your hands on opposite
corners.
Maintenance and Specifications
189