In the end I found some review that compares different scales and as a reference they used an entry-level lab scale. So I figured, hey, why don’t I just buy the benchmark scale? It costs about the same anyway.
So now I have an ugly German lab scale that actually has an off button and runs on a 9v battery. Here’s hoping I never have to buy another.
Or you could go with fully mechanical balance scales.
I have just replaced a battery on my laptop, it completely failed after 2.5 years of use - they are a consumable, not a durable good. All headphones, gaming mice, etc. are headed straight for the landfill when their battery fails, it is impractical to replace that inbuilt lipo cell as it has custom size and shape, etc.
I buy devices with replaceable batteries whereever possible.
I had a kitchen scale that would eat through its battery pretty quickly (within a month) even when not being used. I figured it could be an interesting project to open it up and try to figure out where the stray power draw was happening, but the obviously correct solution was just to leave the battery cover off and pop it in and out for regular use.
Anyway my current kitchen scale was given to me as a present and has a mini-usb input to charge an internal battery. I personally found it to be a bit overkill, but at least I wouldn't need to get a new battery all the time. Then I realized that it can't be used when plugged in and charging. As in even if it is fully charged, it will not work when plugged in a charging. I can't believe that design idiocy. The engineers/managers/everyone involved in the production of this product should be ashamed.