Volvo S90 Twin Engine Owner's Manual page 582

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MAINTENANCE AND SERVICE

Positive connection point

Negative connection point

It is not possible to charge another vehi-

cle's battery by supplying current through

the charging points. Using the charging

points to charge another vehicle's battery

could cause a fuse to blow, which would

cause the charging points to stop working.

Only a modern battery charger with con-

trolled charge voltage should be used to

charge the starter battery. The rapid charg-

ing function should not be used as this

could damage the battery.

If both the starter battery and the hybrid

battery are discharged, both batteries

must be charged. In such cases, it is not

possible to charge only the hybrid battery

The starter battery must have a certain

level of charge for it to be possible to

charge the hybrid battery.

Failure to observe the following could

cause the infotainment energy save mode

to temporarily stop working and/or a mes-

sage in the driver's display regarding the

state of charge of the starter battery may

be temporarily incorrect after an external

starter battery or battery charger has been

The negative battery terminal of the

vehicle's starter battery must never be

used to connect an external starter

battery or battery charger – only the

vehicle's negative charging point

should be used as a grounding point.