Support battery
The vehicle is equipped with 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 hybrid*, a 48 V battery that also enables regenerative braking while driving.
Location
Maintenance of support battery
The support battery does not normally require more service than the regular 12 V battery (start battery). If you have any questions or concerns, consult a workshop ‒ an authorized Volvo workshop is recommended.
If replacing the 12 V battery, make sure you replace it with a battery of the same size, cold start capacity and type as the original battery. Volvo recommends having an authorized Volvo workshop change batteries.Important
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.
Specifications for support battery
| Battery type | AGM |
|---|---|
| Voltage (V) | 12 |
| Cold start capacity[1] - CCA[2] (A) | 170 |
| Dimensions, L×W×H | 150×90×130 mm (5.9×3.5×5.1 inches) |
| Capacity (Ah) | 10 |
If the vehicle is a mild hybrid*, it is instead equipped with a 48 V lithium-ion battery.