Start battery
The start battery is used to start the electrical system and power electrical equipment in the vehicle. The hybrid battery is used to start the combustion engine.
Hybrid batteries
For electric propulsion, the vehicle is equipped with two hybrid batteries. One is located under the tunnel console and one is located behind the rear seat in the trunk. These are maintenance-free and rechargeable lithium-ion batteries.
Extra 12 V battery
This battery is used for electric power in the front seats so that passengers in the rear seat can exit the vehicle even when no other electrical power sources are available.
Contact Polestar Customer Support for assistance with battery replacements.
Battery drain
Note that certain accessories may also drain power from the electrical system. Do not use functions that use a lot of electrical current when the engine is turned off. Examples of such functions are:
- blower
- headlights
- windshield wipers
- audio system (especially at high volume).
If the starter battery voltage is low, a message is shown in the driver display. The vehicle’s energy-saving function will then turn off or reduce certain functions, such as the blower and/or the audio system.
- Charge the battery by starting the engine and let it run for at least 15 minutes (driving charges the battery faster than letting the engine idle).
Battery recycling
Battery symbols
| Wear protective goggles. | |
| See the vehicle’s Manual for additional information. | |
| Keep batteries away from children. | |
| Batteries contain corrosive acid. | |
| Avoid smoking, open flames, and/or sparks. | |
| Risk of explosion. | |
| Recycle properly. |
Hybrid batteries
The vehicle cannot be started if the hybrid battery is discharged. If both the start battery and the hybrid battery are discharged, both batteries must be recharged. In this situation, it is not possible to first charge only the hybrid battery. The start battery must have a certain charge level in order for the hybrid battery to be charged.
Only a workshop may replace a hybrid battery – contact Polestar Customer Support.
Hybrid battery service life and capacity
The capacity of the hybrid battery decreases with age and use, which could result in increased use of the combustion engine, leading to higher fuel consumption and reduced electric motor range.
Coolant
The hybrid battery’s cooling system has its own expansion tank.
The hybrid battery’s coolant should only be refilled by a workshop – contact Polestar Customer Support.
Specifications for hybrid battery
Type: Lithium-ion
Power reserve: 34 kWh.
Replacing the key’s battery
All batteries have a limited service life and must eventually be replaced. The battery’s service life varies depending on how often the vehicle/key is used.
- the information symbol illuminates and the message Vehicle key bat. low is displayed in the instrument panel
- the locks do not react after several attempts to lock or unlock the vehicle using the key within approx. 20 meters (65 feet) from the vehicle.
Move closer to the vehicle and try to unlock it again.
Opening the key and replacing the battery
- Hold the key with the front side (with the Polestar logo) facing up and move the button on the key ring section to the right. Slide the front cover slightly upward.
The cover will loosen and can be removed from the key. - Turn the key over, move the button to the side and slide the rear cover slightly upward.
The cover will loosen and can be removed from the key.
Start battery
- Never disconnect the start battery while the engine is running.
- Make sure the cables to the start battery are correctly connected and the clamps are securely tightened.
- Batteries generate hydrogen gas, which is flammable and explosive. A spark caused by an incorrectly connected jumper cable could be enough to make the battery explode.
- Do not connect the jumper cable to any part of the fuel system or to any moving parts. Avoid touching hot manifolds.
- Battery fluid contains sulfuric acid. Do not allow battery fluid to contact eyes, skin, fabrics or painted surfaces.
- If contact occurs, flush the affected area immediately with water. Obtain medical help immediately if eyes are affected.
- 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.
Start battery service life and capacity
The service life of the start battery is affected by several factors, including a number of starts, battery discharges, driving style, driving conditions, climate, etc. The capacity of the start battery reduces gradually over time and the battery, therefore, needs to be charged if it isn’t used for a prolonged period of time or if it is only driven for short distances. Extreme cold further limits start capacity. Many discharges will adversely affect the service life of the start battery. To help keep the start battery in good condition, drive at least 15 minutes per week or connect the battery to a battery charger with automatic maintenance charging. A start battery that is always fully charged maintains its maximum service life.
Location
The start battery is located in the trunk.
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.
If the battery is secured using a tensioning strap, make sure that the strap is always securely tightened.
Specifications for start battery
| Battery type | H6 AGM |
|---|---|
| Voltage (V) | 12 |
| Cold start capacity – CCA (A) | 760 |
| Dimensions, L×W×H | 277.70×174.40×188.50 mm (10.9×6.9×7.4 inches) |
| Capacity (Ah) | 70 |
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).
Contact Polestar Customer Support for assistance with battery replacements.