How to install the billboard behind the battery car

First of all, it must not be connected directly
If there are two billboards, they can be connected in series,
otherwise you can only buy a DC -DC, if you buy it, pay attention to the capacity

It can be removed. The billboard is actually of no use and is just installed casually. An electric vehicle is a motor vehicle powered by a battery (battery) and driven by an electric motor (DC, AC, series excitation, separate excitation). In recent years, it has been widely popularized in our country.
The billboard for electric vehicles can be removed because it has no practical use. When using electric vehicles, we need to pay attention to how to care for and maintain them. The battery of an electric vehicle is one of its core components, so the battery's power and charging status need to be checked regularly to ensure its normal use. In addition, you also need to pay attention to the maintenance of electric vehicle tires, braking systems, lights and other components. Only by doing good maintenance and upkeep can the service life of electric vehicles be extended and their safety and reliability improved.