If you've got a Nintendo Switch 2 then the battery preservation mode should be a new priority for you! Let's be clear though - this isn't the same thing as a way to conserve battery power, like when your phone is below 20% and starts turning off features to last that little bit longer.
In fact, the Battery Preservation Mode that comes with the Nintendo Switch 2 is actually about preserving the long-term life of the built-in lithium battery. Many handheld devices have batteries that degrade over time - meaning that their maximum capacity shrinks - and the Battery Preservation Mode tweaks certain features of the console to slow that degradation.
