What is the best way to maintain the battery life of a Ford S-Max?

I recently purchased a Ford S-Max and I want to make sure I am properly maintaining the battery. What are the best practices for extending the battery life of my car, and are there any specific things I should avoid?

Regularly check and clean the battery terminals to prevent build up of corrosion. Also, avoid draining the battery excessively by limiting use of electronic accessories when the engine is not running.

Invest in a trickle charger to maintain the battery's charge during long periods of inactivity. It's also important to regularly check the battery's water level and top up if needed.

To avoid draining the battery, make sure all lights and electronics are turned off when exiting the vehicle. Also, avoid using the car's radio or other accessories when the engine is not running.