Hybrid battery
The car is equipped with a hybrid battery for electric motor operation - a maintenance-free rechargeable Lithium-ion type battery.
Note
The car cannot be started if the hybrid battery is discharged.
Note
If both the starter battery and the hybrid battery are discharged then both batteries must be charged. In such a case, charging only the hybrid battery first is not possible.
In order for the hybrid battery to be charged the starter battery must have a certain state of charge.
Warning
The hybrid battery must only be replaced by a workshop - an authorised Volvo workshop is recommended.
Coolant
The hybrid battery's cooling system has a separate expansion tank.
![P5-1519 XC90 Hybrid Hybrid battery coolant refill](https://www.volvocars.com/images/support/img9a11cbd2ecde3004c0a801525192e3c7_1_--_--_VOICEpnghigh.png?imwidth=1280)
Important
The hybrid battery's coolant must only be topped up by a workshop - an authorised Volvo workshop is recommended.
Specifications for hybrid battery
Type: Lithium-ion
Total amount of energy: 10.4 kWh.
Note
The capacity of the hybrid battery diminishes with age and use, which may result in increased use of the internal combustion engine and, as a consequence, reduced fuel economy and reduced range during electric operation.