This is due to the fact that the LV battery is fed, after the “Ready” mode status is enabled, via a step-down DCDC converter from the High Voltage, high capacity battery and its main purpose is to turn on the computers of the Prius.
A Toyota Prius is a prime example of why hybrid cars work. Toyota boasts that the battery should last the lifetime of the car. Regardless, it should last for at least ten years or more than 150,000 miles. Best of all, you have options when you replace a Prius battery.Apr 6, 2020
If that battery fails, then you could still drive the Prius, but it will be weaker and a lot less smooth. Other hybrid systems that require a 12-volt battery might not work if the hybrid battery dies. Even if your car does start, you run the risk of your car losing power or dying on the road.Jan 13, 2020
In the case of a dead Prius battery, your vehicle could still run off gasoline, but it would be weak and not very smooth driving. It would still be best if you replaced the battery as soon as possible. In most cases, if your high-voltage battery is dead, the vehicle will not run properly.Jan 26, 2021
When the battery becomes discharged enough that the gasoline engine would normally engage, the Prius' speed will be limited to 18 mph, says Toyota. So on your limp to the gas station you'll be going pretty slowly. When this eventually happens, the system shuts down the electric motor and the Prius stops where it is.Dec 7, 2016
A hybrid vehicle cannot run without the hybrid battery, so vehicle owners must invest in new hybrid batteries periodically, which can make vehicle maintenance expensive. Fortunately, hybrid technology is always evolving. Modern batteries are more resilient than their older counterparts.Jun 12, 2020