Acura 2009 RDX - Manual (Page 372)

Check the condition of the battery
monthly by looking at the test
indicator window. The label on the
battery explains the test indicator’s
colors.
If you need to connect the battery to
a charger, disconnect both cables to
prevent damaging your vehicle’s
electrical system. Always disconnect
the negative (
) cable first, and
reconnect it last.
Battery posts,
terminals, and related accessories
contain lead and lead compounds.
If additional battery maintenance is
needed, see your dealer or a
qualified technician.
Check the terminals for corrosion (a
white or yellowish powder). To
remove it, cover the terminals with a
solution of baking soda and water. It
will bubble up and turn brown. When
this stops, wash it off with plain
water. Dry off the battery with a
cloth or paper towel. Coat the
terminals with grease to help prevent
future corrosion.
WARNING:
Wash your hands af ter handling.
Checking the Battery
366
TEST INDICATOR WINDOW
The battery gives off explosive
hydrogen gas during normal
operation.
A spark or flame can cause the
battery to explode with enough
force to kill or seriously hurt you.
Wear protective clothing and a
face shield, or have a skilled
technician do the battery
maintenance.