How to enhance battery life of new MacBook Airs?

It comes with 15hrs of wireless web searching and that is what apple was able to fit in the small laptop if you want to preserve the battery   > System Preferences, click Battery or Energy Saver, then select Battery in the sidebar. 

cassal wrote:

A teacher asked if there are steps to take to maximize the battery life of their' new MacBook Airs (M1, 2020)?

Start here:

Batteries - Maximizing Performance - Apple