Volvo Penta 22 Series Instruction Book page 42

42
Battery. Maintenance
WARNING! Risk of fire and explosion. Never
allow an open flame or electric sparks near the
battery or batteries.
WARNING! Never mix up battery positive and
negative terminals. This may cause sparks and
an explosion.
WARNING! The battery electrolyte contains
extremely corrosive sulfuric acid. Protect your
skin and clothes when charging or handling
batteries. Always use protective goggles and
gloves. If battery electrolyte comes into contact
with unprotected skin wash off immediately using
plenty of water and soap. If battery acid comes
into contact with the eyes, flush immediately
with plenty of water and obtain medical
assistance without delay.
Connecting and disconnecting
First connect the red battery lead + to the battery +
terminal. Then connect the black battery lead - to the
battery - terminal.
When disconnecting the battery, disconnect the -lead
(black) first and then the + lead (red).
Cleaning
Keep batteries dry and clean. Oxidation or dirt on the
battery and battery terminals can cause short-circuits,
voltage drop and discharge especially in damp
weather. Clean the battery terminals and leads to
remove oxidation using a brass brush. Tighten the
cable terminals well and grease them with terminal
grease or petroleum jelly.
Electrolyte level
The electrolyte should be 5 - 10 mm over the plates in
the battery. Top up using distilled water if necessary.
After topping up charge the battery for at least 30
minutes by running the engine at fast idle. NOTE!
Certain maintenance-free batteries have special
instructions which must be followed.
IMPORTANT! Never mix up battery positive and
negative terminals.