Batteries and power supply
The vehicle's own power is supplied by different batteries and components. These enable the vehicle's electric functions.
The vehicle's primary electrical system operates with 12 V voltage and powers electrical equipment.
Mild hybrid1 vehicles are equipped with a 48 V system in addition to the primary electrical system.
Batteries
To supply power to various components, your vehicle is equipped with:
- a 12 V start battery that powers the vehicle's primary electrical system
- a support battery that helps during the Start/Stop function's start sequence. The battery is either a 12 V battery or, if the vehicle is a mild hybrid1, a 48 V battery that also enables regenerative braking while driving.
Warning
48 V voltage may be dangerous if handled incorrectly. Do not touch anything on batteries that is not clearly described in this Owner's Manual.
- 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 perform service on the 48 V battery – an authorized Volvo workshop is recommended.