Volvo XC90 Owner's Manual page 170

Battery
Battery care
The function and life of the battery is affected
by number of starts, number of times
discharged, driving style, driving conditions,
climate conditions, etc.
Repeated use of the parking heater and
similar large power consumers combined
with short driving distances could lead to a
discharged battery and thereby problems
starting.
For the battery to function satisfactorily,
consider the following:
• Regularly check that the battery
electrolyte level is correct (A).
• Check all cells. Use a screwdriver to
remove the caps. Each cell has its own
maximum level mark.
• If necessary, top up with distilled water to
the battery's maximum mark.
• Never fill above the maximum mark (A).
Important!
Always use distilled or deionised water
(battery water).
– Tighten the caps properly.
NOTE! The life of the battery is shortened if it
becomes discharged repeatedly.
Symbols on the battery
These symbols displayed on the battery.
Use protective goggles
Further information in the
owner's manual.
Maintenance and service
Store the battery out of the
reach of children.
The battery contains
corrosive acid.
Avoid sparks and naked
flames.
Risk of explosion.
NSV