Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
That’s shocking. My SE 2016 is better than that! Mine was charged last night and used briefly this morning and then for a while at lunchtime. It still has 90% battery left.

Is that typical for the SE2020’s battery? If it’s really that bad I won’t be buying the 2022 one after this event unless the battery gets an upgrade. I guess I’d have to go back to the 12 mini, with it’s headache-inducing screen ?

This depends on network conditions as well.

I just get 1-2 bars at work with no wifi available. I usually have to charge twice a day or put the phone in low power mode when it hits 50-60% if I don't want it dying before I get home. The drain from 50->0% goes a lot faster than the drain from 100->50% on my 2-year old SE2.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.