I see, although nothing precludes them from adding more performance profiles.Sorry, I edited my original post, but not fast enough. The way hackers do it is through overriding the games built in profiles. Nintendo can do this too, but it'd be a bad idea to do this as a blanket approach. Developers built their game with their profiles in mind, and while most games will probably work fine, it could have unexpected consequences without it being tested beforehand. Nintendo isn't going to have every dev of it's more than 2000 games test before releasing the system, so I just don't see them overriding the defaults of the base model.
Ideally, Nintendo will have an option to enable it like the PS4 Pro does for non-enhanced games, but Nintendo hasn't been known to support things like this with previous models (neither DSi or New 3DS had built in options to do so despite hackers having the ability to force it).
There's a lot of those as I've been led to believe.
At any rate, even if they don't make use of extra juice, I suppose we can still expect some good battery life bump from this.
This is not the midgen upgrade some were hoping for, but it will be better than what it's replacing one way or another.