Why the new cars in dealership showrooms need to have their batteries charged?

This is a misconception. New cars in dealerships do not typically need to have their batteries charged. Car dealerships invest heavily in maintaining their inventory, and ensuring vehicles' batteries are properly maintained is a crucial aspect of this.

When new cars arrive at dealerships, they're usually driven off the truck with enough battery power to support various functions like interior lights, alarm systems, and keyless entry. Additionally, dealerships usually have routines in place to periodically start and run these vehicles regularly, ensuring the batteries stay adequately charged.

While certain special circumstances might require extra battery charging, such as vehicles that have been sitting unsold on the lot for an extended period, dealerships typically take proactive steps to manage their inventory's battery health.