Power supply
The car's own power supply is connected to several different components and activates their electrical functions.
The car's primary electrical system operates with 12 V voltage and powers electrical equipment.
In addition to the primary electrical system, mild hybrid1 type cars are equipped with a 48 V system.
Batteries
In order to supply power to the various components, your car is equipped with the following:
- a 12 V starter battery that powers the car's primary electrical system
- a support battery that helps during the Start/Stop function's starting sequence. The battery is either a 12 V battery or, if the car is the mild hybrid1 type, a 48 V battery that also allows regenerative braking while driving.
Warning
48 V voltage can be dangerous in the event of incorrect intervention. Do not touch anything on the batteries that is not clearly described in the owner's manual.
- 48 V support battery must never be used for jump-starting.
- External electrical equipment must not, under any circumstances, be connected to the 48 V battery.
- The 48 V battery may only be serviced and replaced by a workshop – an authorised Volvo workshop is recommended.