Get Maintenance and service -> Start battery Guide for Volvo Xc90 SUV 2020

MAINTENANCE AND SERVICE

Start battery

Connection points

WARNING

The vehicle has a single-pole electrical sys-

tem that uses the chassis and engine mount

as conductors.

Batteries generate hydrogen gas,

which is flammable and explosive.

•

WARNING

California Proposition 65

Do not connect the jumper cable to

any part of the fuel system or to any

moving parts. Avoid touching hot

manifolds.

The start battery is used to start the electrical

system and power the starter motor and

other electrical equipment in the vehicle.

Operating, servicing and maintaining a pas-

senger vehicle can expose you to chemi-

cals including engine exhaust, carbon mon-

oxide, phthalates, and lead, which are

known to the State of California to cause

cancer and birth defects or other reproduc-

tive harm. To minimize exposure, avoid

breathing exhaust, do not idle the engine

except as necessary, service your vehicle in

a well ventilated area and wear gloves or

wash your hands frequently when servicing

your vehicle. For more information go to

www.P65Warnings.ca.gov/passenger-

vehicle.

The start battery should only be replaced by a

Battery fluid contains sulfuric acid. Do

not allow battery fluid to contact eyes,

skin, fabrics or painted surfaces.

•

workshop²²

The vehicle has a voltage-regulated alternating

current generator.

If contact occurs, flush the affected

area immediately with water. Obtain

medical help immediately if eyes are

affected.

The start battery is a 12 V battery, dimen-

sioned for the carbon dioxide-reducing func-

tions Start/Stop and regenerative charging

and to support the function of the vehicle's

various systems.

Never expose the battery to open flame

or electric spark. Do not smoke near

the battery. Failure to follow the

instructions for jump starting can lead

to injury.

•

The service life and performance of the start

battery are affected by factors such as driving

style, driving conditions, climate, battery dis-

charges, number of starts, etc.

Use the vehicle's connection points in the

engine compartment to connect an external

start battery or battery charger.

The battery terminals on the car's start battery

in the luggage/cargo area must not be used.

Never disconnect the start battery while

the engine is running.

•

If the start battery is being charged, the sup-

port battery will also be charged.

Make sure the cables to the start battery

are correctly connected and the clamps

are securely tightened.

•

An authorized Volvo workshop is recommended.

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595

MAINTENANCE AND SERVICE

CAUTION

NOTE

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

connected:

If the starter battery becomes discharged

too many times, it will shorten its service

life.

The service life of the starter battery is

affected by several factors, such as driving

conditions and climate. The starting

capacity of the battery reduces gradually

over time. The battery must therefore be

recharged if the vehicle is not used or a

long period of time or if it is only driven

short distances. Severe cold further limits

the starting capacity.

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.

•

Positive connection point

Negative connection point

To keep the starter battery in a good condi-

tion, the vehicle should be driven at least

15 minutes per week or the battery should

be connected to a battery charger with

automatic trickle charging.

CAUTION

Only a modern battery charger with con-

trolled charge voltage should be used to

charge the starter battery and support bat-

tery. The rapid charging function should

not be used as this could damage the bat-

tery.

A starter battery that is always kept fully

charged has the maximum service life.

596

MAINTENANCE AND SERVICE

Location

WARNING

If the starter battery is disconnected, the

function for automatic opening and closing

must be reset to function correctly. A reset

is required in order for the pinch protection

to work.

CAUTION

On certain models, the battery is secured

with a tensioning strap. Make sure that the

tensioning strap is always securely tight-

ened.

The start battery is located in the cargo compart-

ment.

Specifications for start battery

Battery type

H7 AGM

H8 AGM

Voltage (V)

Cold start capacity^A- CCA^B(A)

Dimensions, L×W×H

Capacity (Ah)

800

850

315×175×190 mm (12.4×6.9×7.5 inches)

353×175×190 mm (13.9×6.9×7.5 inches)

According to EN standard.

Cold Cranking Amperes.

Volvo recommends that batteries are replaced

by an authorized Volvo workshop.

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597

MAINTENANCE AND SERVICE

CAUTION

If replacing the battery, make sure you

replace it with a battery of the same size,

cold start capacity and type as the original

battery (see the decal on the battery).

Related information

Battery symbols (p. 601)

•

Support battery (p. 599)

Jump starting using another battery

(p. 435)

Reset procedure for pinch protection

(p. 169)

•

Battery recycling (p. 601)

598

MAINTENANCE AND SERVICE

Support battery

NOTE

Vehicles with the Start/Stop function are

equipped with two batteries – a more power-

ful 12 V start battery and a support battery

that provides stronger current during the

function's start sequence.

The higher the current consumption in

the vehicle, the more the alternator has

to work and the batteries have to be

charged = increased fuel consumption.

•

When the starter battery capacity has

dropped below the lowest permissible

level, the Start/Stop function is disen-

gaged.

When the Start/Stop function is temporarily

reduced due to high current consumption:

If the vehicle is instead equipped with a 48 V support

battery, it is located under the cargo compartment.

The box over the 48 V support battery may only be

removed by an authorized workshop.

The engine will auto-start, even if the

driver does not lift their foot from the

brake pedal.

•

WARNING

The support battery does not normally require

more service than the start battery. If you have

any questions or concerns, consult a work-

shop ‒ an authorized Volvo workshop is rec-

ommended.

High voltage may be dangerous if handled

incorrectly. Do not touch anything on bat-

teries that is not clearly described in this

Owner's Manual.

The 12 V support battery is located in a box next to

the spring strut in the engine compartment.

Never use a 48 V support battery to

jump start the vehicle.

•

External electrical equipment may not

under any circumstance be connected

to the 48 V battery.

•

Only a workshop may replace or per-

form service on the 48 V battery – an

authorized Volvo workshop is recom-

mended.

•

}}

599

MAINTENANCE AND SERVICE

CAUTION

NOTE

Cold start capacity^A-

CCA^B(A)

170

If the following is not observed, the Start/

Stop function may temporarily stop work-

ing after connection of an external starter

battery or battery charger:

If the starter battery has been discharged

to the extent that the vehicle does not have

normal electrical functions and the engine

must then be jump-started with an external

battery or a battery charger, the Start/Stop

function may remain activated. If the Start/

Stop function shortly thereafter auto-stops

the engine, there is a huge risk that auto-

start of the engine will fail due to insuffi-

cient battery capacity since the battery had

not had time to recharge.

150×90×130 mm

(5.9×3.5×5.1

inches)

Dimensions, L×W×H

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.

•

Capacity (Ah)

According to EN standard.

Cold Cranking Amperes.

CAUTION

If replacing the battery, make sure you

replace it with a battery of the same size,

cold start capacity and type as the original

battery (see the decal on the battery).

If the vehicle has been jump-started or if

there has not been enough time for the

battery to be charged with a battery

charger, the Start/Stop function should be

temporarily deactivated until the battery

has been recharged by the vehicle. At an

ambient temperature of about +15°C

(about 60°F), the battery must be charged

by the vehicle for at least one hour. At

lower ambient temperatures, the charging

time can increase to 3-4 hours. It is advisa-

ble to charge the battery with an external

battery charger.

Related information

Start battery (p. 595)

•

Start/Stop function (p. 416)

Battery symbols (p. 601)

Battery recycling (p. 601)

Specifications for support battery

Type

AGM

Voltage (V)

600

MAINTENANCE AND SERVICE

Battery symbols

There are warning symbols and information

on the batteries.

Battery recycling

Start batteries and support batteries contain

lead and must be recycled in an environmen-

tally sound manner at the end of their service

life.

Avoid smoking, open

flames, and/or sparks.

Consult a workshop if you are uncertain of

how to dispose of this type of waste ‒ an

authorized Volvo workshop is recommended.

Wear protective goggles.

Related information

Risk of explosion.

Recycle properly.

Start battery (p. 595)

•

Support battery (p. 599)

Battery symbols (p. 601)

See the Owner's Manual

for additional information.

Keep batteries away from

children.

Related information

Start battery (p. 595)

•

Support battery (p. 599)

Battery recycling (p. 601)

Batteries contain corro-

sive acid.

601

Maintenance and service -> Start battery for Your Volvo Xc90 SUV 2020

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