Why does the battery of the BMW i5 drain quickly?

I have noticed that the battery on my BMW i5 drains quickly, even when the car is not in use. What could be causing this and what can I do to improve the battery life?

It is important to note that the battery of the BMW i5 is affected by various factors such as temperature, driving habits, and age of the battery. If the battery is older, it may not hold a charge as well as a new one. In addition, frequent short trips can also drain the battery quicker due to the constant stopping and starting of the car. To improve battery life, try to take longer trips and avoid leaving the car parked for extended periods of time.

Another reason for quick battery drain could be due to a faulty charging system. Have a professional check the alternator and charging system to ensure they are functioning properly.