There are a few factors that determine how fast the interior lights will drain your car’s battery. First and foremost is the power rating of the interior lights and how many you use. In older cars, halogen lamps were used for the lights. Despite the fact that they drew more power, there were only a few of them, and it wasn’t always on. Therefore, the power consumption was insignificant. But these days, although LEDs are very efficient, the lighting inside the car is much more extensive, and many of them are always on when the car runs. So, depending on how much power your
car lights
use, you will have to get a larger battery to compensate for it.