2025-2026 Volvo EX30 4 Door Care and maintenance -> Car electrics and batteries User Manual
MyCarUserManual.com
USER MANUALS FOR EVERY MAKE & MODEL

Care and maintenance -> Car electrics and batteries for Your Volvo EX30 4 Door First Generation (2025-2026)

correct pressure for the current situation helps ensure an even tyre wear and high performance.  
The tyres need to be at ambient temperature when the pressure is checked and adjusted. This is referred to as having cold tyres.  
Never release air from a warm tyre. When it cools down, the internal air pressure drops, which can lead to underinflated or even  
entirely deflated tyres.  
The tyres can warm up very quickly and should be considered warm if driven for longer than approximately 1.5 km (1 mile). They  
often need about 3 hours of cooling down before reaching ambient temperature again.  
Remove the tyre valve's dust cap and then press the tyre pressure gauge firmly onto the valve.  
1
Check the gauge to see what the current tyre pressure is.  
2
If the pressure is low, inflate the tyre to the correct pressure. The recommended pressure for factory-fitted tyres is shown  
3
on the door pillar on the driver's side.  
Refit the dust cap[1] to avoid damage to the valve.  
4
Inspect the tyre for stuck debris, such as nails or other objects, that could puncture the tyre.  
5
Check the sidewalls for any cavities, cuts, bumps or other irregularities.  
6
If you accidentally over-inflate the tyre, press the metal pin in the middle of the valve to let out the excess air. Then check the  
pressure again.  
Note  
Spare wheels may have recommended pressures that are different from those of the original tyres. Always use the  
pressure recommended by the spare wheel manufacturer.  
Tip  
You can use the compressor from the temporary puncture repair kit to check and adjust the tyre pressure on your original  
tyres when needed.  
[1]  
Only use original Volvo dust caps or plastic ones as metal dust caps may corrode and stick to the valve.  
13.5. Car electrics and batteries  
Your car has a highly specialised electrical system that delivers electricity to and from the batteries. There are  
both high-voltage and low-voltage circuits for different electrical functions.  
There is information about several of your car's electrical components in this section of the manual. This includes:  
The content of this manual represents the status of the user manual at the time of printing and may not be completely valid in future  
instances. For more information, refer to the first page for the complete disclaimer note.  
336 / 396  
Traction battery  
12 V battery  
Emergency 12 V supply terminal  
Fuses  
Important  
12 V terminal  
In the event of a total loss of power, the car can't be unlocked as the locks are electrically operated. To access the car and  
charge it, the car can be powered for a short time using the externally accessible 12 V terminal. It can be accessed by re-  
moving a small panel below the front bumper, near the front left wheel.  
Before any use of the 12 V terminal, consider the following:  
Volvo recommends that the 12 V terminal is only used by service technicians for the purpose of accessing the car as  
part of immobilisation recovery.  
The external 12 V terminal on your car should only be used to make your car accessible. Do not attempt to charge  
another car or similar external source from this point.  
Only use a 12 V charger with a maximum charging current below 40 A.  
Connecting any power source that delivers currents higher than 40 A blows the terminal's fuse, thereby disabling it.  
Only use the 12 V terminal for short amounts of time. This is not meant as a way of powering the car continuously.  
Make sure to follow the positive and negative markings on the terminals as reversing the polarity of the low voltage  
system can lead to damaging the low voltage system components or blowing the 40 A fuse.  
Tip  
Car charging  
Features and equipment related to charging, such as the charging port and cables, have their own section.  
Convenience features  
Power-related features, such as USB ports and the wireless charging of devices, are covered in other sections.  
Warning  
Do not handle or modify the car's electrical components. Only perform actions that are clearly described in the user  
manual.  
High-voltage components can produce or conduct lethal currents and must only be handled by authorised  
technicians.  
Do not perform repairs on the car's electrical system or components. Contact an authorised Volvo workshop for any  
required repairs or servicing.  
The content of this manual represents the status of the user manual at the time of printing and may not be completely valid in future  
instances. For more information, refer to the first page for the complete disclaimer note.  
337 / 396  
13.5.1. Traction battery  
Your car's traction battery is the central power source for your car. It powers all electric propulsion and  
indirectly powers the rest of the car by keeping the smaller 12 V battery charged.  
The traction battery sits low in the underbody of the car.  
Battery care and health  
How you use your car affects the traction battery's condition. Over time its capacity decreases. There are recommended user  
practices that can help extend the battery's service life. These user practices cover events and conditions that can cause battery  
damage.  
Important  
Leaving the car with a low battery level can lead to battery damage. Make sure to charge the car as soon as possible if the  
battery level is near empty.  
Tip  
There are separate sections in this manual about battery health and what you can do to recover from a low-power  
scenario.  
Battery service and maintenance  
The traction battery is a high-voltage component that only authorised technicians are equipped to service safely.  
Warning  
Do not handle or modify the car's electrical components. Only perform actions that are clearly described in the user  
manual.  
High-voltage components can produce or conduct lethal currents and must only be handled by authorised  
technicians.  
Do not perform repairs on the car's electrical system or components. Contact an authorised Volvo workshop for any  
required repairs or servicing.  
13.5.1.1. Managing battery health and performance  
There are user practices that can help maintain the traction battery's condition and performance over time.  
Some scenarios can lead to battery damage and should always be avoided.  
Low battery level and flat battery  
The content of this manual represents the status of the user manual at the time of printing and may not be completely valid in future  
instances. For more information, refer to the first page for the complete disclaimer note.  
338 / 396  
Important  
The traction battery can sustain severe damage if it is not charged after the battery level reaches 0%. The car draws a  
small amount of power when parked. Therefore, leaving the car with a low battery level without charging can lead to a flat  
battery and battery damage. If the battery level is below 20% when parked, it is recommended that the car is connected  
for charging as soon as possible.  
If the battery level reaches 0%, the battery is considered flat or empty. The car then needs to be charged as soon as possible to  
reduce the risk of battery damage.  
The smaller 12 V battery is also at risk of going flat if the traction battery can't supply it with power. If both batteries have gone  
flat, the car will have no power at all and no ability to initiate charging.  
High state of charge  
Important  
The traction battery can sustain damage if the car's battery level is kept very high for a long period of time.  
If you are leaving the car plugged in for charging without any immediate plans to drive it, select the target battery level recom-  
mended in the car's charging view.  
Charging habits  
AC charging is the recommended charging mode for everyday charging. This helps maintain the condition of the battery over  
time. DC charging causes more wear.  
Long-term parking  
When leaving your car parked for longer than one month, the recommended battery level is 40ꢀ60%. Use or charge the car to  
reach the recommended level.  
If you are leaving the car parked for longer than three months, it's recommended to keep it plugged in but set the battery char-  
ging limit to 50%. This is for better battery health.  
Regularly check the battery level and that charging is working.  
Tip  
There is a separate section in this manual with more recommendations for long-term parking.  
Parking in hot weather  
Important  
Avoid exposing the car to extreme temperatures. Avoid leaving the car parked for longer than 24 hours if the temperature  
is at risk of reaching 55 °C (131 °F).  
The content of this manual represents the status of the user manual at the time of printing and may not be completely valid in future  
instances. For more information, refer to the first page for the complete disclaimer note.  
339 / 396  
During warmer periods of time, you're recommended to plug in the car during parking. High temperatures cause battery dam-  
age, especially when the car is exposed to hot weather for prolonged periods. The car can actively cool the battery while it's  
parked, but that uses power. When you're returning to your parked car, the battery level could be noticeably lower than before. If  
the car is plugged in for charging, it can cool the battery without lowering the battery level and risking a flat battery.  
In hot temperatures, it is recommended that you park in a shaded spot. Strong sunlight combined with high temperatures can  
lead to very high battery temperatures and excessive cooling needs.  
Parking in cold weather  
When the battery is cold, the car temporarily reduces battery performance until it's warmed up. Driving the car in a state of re-  
duced performance doesn't harm the battery.  
To avoid temporarily reduced performance from a cold battery, connect the car for charging and activate the car's precondition-  
ing ahead of your trip. The car can then heat the battery without affecting performance and available range.  
In temperatures below -30 °C (-22 °F), avoid leaving the car parked without charging for longer than 24 hours.  
13.5.1.2. Powertrain cooling system  
Your car has an advanced temperature regulation system.  
The system actively regulates the temperature of the traction battery while you're parked, charging or driving your car. This hap-  
pens if your car experiences high or low temperatures and during preconditioning.  
Important  
Never attempt to add coolant yourself  
The cooling system is a closed system. A trained technician must perform any required maintenance of the cooling sys-  
tem.[1]  
[1]  
Volvo recommends an authorised Volvo workshop.  
13.5.2. 12 V battery  
The 12 V battery powers everything in your car except the electric propulsion.  
Servicing and replacement  
The 12 V battery is maintenance-free.  
Contact an authorised Volvo workshop if the 12 V battery needs to be replaced.  
The content of this manual represents the status of the user manual at the time of printing and may not be completely valid in future  
instances. For more information, refer to the first page for the complete disclaimer note.  
340 / 396  
Important  
12 V terminal  
In the event of a total loss of power, your car can't be unlocked as the locks are electrically operated. To access your car  
and charge it, it can be powered for a short time using the externally accessible 12 V terminal. The terminal can be ac-  
cessed by removing a small panel below the front bumper, near the front left wheel.  
Before any use of the 12 V terminal, consider the following:  
Volvo recommends that the 12 V terminal is only used by service technicians for the purpose of accessing the car as  
part of immobilisation recovery.  
The external 12 V terminal on your car should only be used to make your car accessible. Do not attempt to charge  
another car or similar external source from this point.  
Only use a 12 V charger with a maximum charging current below 40 A.  
Connecting any power source that delivers currents higher than 40 A blows the terminal's fuse, thereby disabling it.  
Only use the 12 V terminal for short amounts of time. This is not meant as a way of powering the car continuously.  
Make sure to follow the positive and negative markings on the terminals as reversing the polarity of the low voltage  
system can lead to damaging the low voltage system components or blowing the 40 A fuse.  
12 V battery specifications  
Battery type  
AGM H4  
Voltage  
12 V  
Dimensions (length × width × height)  
Capacity  
207 × 175 × 190 mm (85⁄₃₂ × 657  
⁄64 × 7³¹⁄64 in)  
50 Ah  
540 A  
Cold start capacity[1]  
[1]  
CCA  
13.5.2.1. Battery labels  
Low-voltage car batteries have labels containing information for safe handling.  
Symbols  
The content of this manual represents the status of the user manual at the time of printing and may not be completely valid in future  
instances. For more information, refer to the first page for the complete disclaimer note.  
341 / 396  
Avoid sparks and naked flames.  
Risk of explosion.  
The battery contains corrosive acid.  
Use protective goggles.  
Store the battery out of reach of children.  
The battery must be disposed of properly to be recycled.  
Recycle properly.  
More information in the car's user manual.  
Note  
Depicted labels  
Labels depicted in this manual are generic representations of those found around your car. The manual only contains  
their location and what kind of information they hold. Find the actual label for specific information about your car.  
The content of this manual represents the status of the user manual at the time of printing and may not be completely valid in future  
instances. For more information, refer to the first page for the complete disclaimer note.  
342 / 396  
13.5.3. Battery recycling  
Used batteries must be recycled in an environmentally sound manner.  
Consult Volvo support if you're unsure of how to dispose of batteries. The traction battery must only be handled by authorised  
technicians.  
13.5.4. Fuses  
Electrical fuses protect different parts of the car's electrical system by cutting the power if the current  
exceeds the fuse's threshold. A blown fuse must be replaced to restore functionality.  
A blown fuse may be an indicator of an underlying electrical fault. Contact Volvo support if your car indicates that a fuse has  
blown.  
Important  
If a fuse is incorrectly replaced it can cause severe damage to the electrical system.  
A replacement fuse must have the correct specifications, such as type and ampere value.  
Volvo recommends an authorised Volvo workshop for fuse replacements.  
13.6. Tools and equipment  
Your car is equipped with some tools that may be useful in certain situations. For example, if you need to  
change a wheel.  
The tools and equipment in your car are stored in different places, such as under the bonnet, in the glove box and in the boot.  
Be sure to familiarise yourself with where everything is stored so you don't have to search for something when you need it.  
Warning  
Store tools appropriately  
Always store loose tools and equipment in designated storage areas when not in use. Otherwise, they can cause damage  
or injury in the event of a collision.  
Read all instructions before using tools  
Before use, make sure you read and understand all the relevant instructions for tools and equipment.  
Contact a Volvo dealer for recommendations concerning tools and equipment for your car.  
The content of this manual represents the status of the user manual at the time of printing and may not be completely valid in future  
instances. For more information, refer to the first page for the complete disclaimer note.  
343 / 396  

Related Topics

Care and maintenance
Car status Exterior cleaning and care Polishing and waxing Finding the paint colour code Refilling washer fluid Cleaning wipers Replacing front wiper blades Replacing the rear wiper blade Corrosion protection Interior cleaning and care Cleaning fabrics and textiles Cleaning glass and glossy surfaces Activating display cleaning mode Cleaning interior plastic and metal components Cleaning mats Wheels and tyres Wheel and tyre recommendations Tyres and wheel storage Designations on tyre sidewall Changing wheels Spare wheel Punctures Adjusting tyre pressure Managing battery health and performance Powertrain cooling system 12 V battery Battery labels Battery recycling Fuses Tools and equipment Using a warning triangle Attaching the towing eye Servicing and repairs On-board diagnostic port

Popular Owner Manuals

Audi
Audi
BMW
BMW
Citroen
Citroen
Ford
Ford
Honda
Honda
Peugeot
Peugeot