This post was originally published on Auto Success
Did you know that despite the advanced technology of electric vehicles (EVs), they still rely on a traditional 12-volt battery for important functions? It’s a fact that these batteries are responsible for powering various components such as windshield wipers and airbags, playing a vital role in both comfort and safety. While we may be immersed by the high-voltage systems that propel EVs, the 12-volt battery quietly maintains the vehicle’s essential auxiliary components. As we delve into the dual electrical systems of EVs, it becomes evident that these batteries are crucial for both functionality and compliance with safety regulations.
Here’s why the 12-volt battery is indispensable:
- Powering essential components: When the motor is not running, the 12-volt battery takes over and powers systems like electronic power steering, stability control, and cabin comfort features such as fans and heated seats.
- Safety net during failures: In rare but critical situations where the high-voltage battery is compromised, the 12-volt battery ensures that safety systems remain functional, allowing for safe vehicle control or shutdown.
Surprisingly, a significant number of EV roadside assistance calls are due to issues with the 12-volt battery. Regular checks can prevent such incidents, especially since some EVs rely on the 12-volt battery for their startup sequence. Given its crucial role, it’s clear that the 12-volt battery is not just a legacy component in electric vehicles, but a key player in the EV ecosystem. Regular maintenance and monitoring of its health are essential for a smooth and safe driving experience. While most EVs use lead-acid batteries, some opt for AGM, EFB, or lithium-ion types for better performance and longevity. Like an alternator, a DC-DC converter charges the 12-volt battery from the high-voltage battery pack, ensuring it remains charged while the EV is in use or plugged in.
Conducting regular inspections for signs of corrosion and ensuring clean terminals can prevent power issues. It’s like giving your EV a routine health check-up to avoid unexpected problems on the road. And when it’s time for a replacement, it’s best to leave it to the experts who have the expertise to handle the intricate relationship between the 12-volt and high-voltage batteries. As electric vehicles continue to evolve, their 12-volt counterparts must also adapt. We are now seeing systems that can handle more power, adjust to new technologies, and improve energy efficiency.
Incorporating the 12-volt battery in electric vehicles is not just a nod to tradition; it’s a practical solution to ensure the smooth operation of essential systems and provide a safety net in case of high-voltage battery issues.
This video is sponsored by BendPak.
