Volvo Penta 3.0GS/SX Owner's Manual page 60

58
Charging
Avoid boost charging the batteries. If boost charging
is necessary then both battery leads must be remo-
ved from the battery. Never use a boost charger unit
to jump start an engine.
When charging, unscrew filler plugs but leave them in
their holes. Ventilation should be good, particularly if
the batteries are being charged in an enclosed area.
Always switch off the charging circuit before remo-
ving the battery charger connectors.
WARNING! Danger of explosion! Never allow
an open flame or sparks near the battery area.
Battery electrolyte levels
The electrolyte should be 5 – 10 mm (0.2 – 0.4 in)
over the plates in the battery. Top up if necessary
using distilled water. Charge the battery after top-
ping up for at least 30 minutes by running the engine
at fast idle. NOTE! Certain maintenance-free batteries
have special instructions which must be followed.
WARNING! Danger of explosion! No naked fla-
mes or sparks. Battery electrolyte is highly cor-
rosive. If it gets in the eyes, flush with water.
Contact a doctor immediately.