Sure the world was destroyed but at one beautiful point in time we created a lot of value for shareholders.

I would always say “two” when talking about such a small quantity. “Years” is misleading, as evidenced by many other comments here.

“The battery lasts two years”

On this page [1] in the technical specifications under battery life, instead of actually saying 12-15 hours of recording or 2 years, it just says "Years of average use"

[1] https://repebble.com/index

Something can be technically true while still being misleading. In fact arguably that's what the word misleading means (as opposed to false).

I think most people, when told that something will last for "years", would be quite surprised to learn that it will fail after 2 years.

It’s my first language. Why is it funny to you? I’m dead serious when I say that “years” implies more than two in almost all contexts.

If someone said “that’s years ago” I’d assume 5+. If someone said “it’ll be years before that’s released” I would again assume 5+.

To be two I would expect “that’ll be out in a couple of years”, or “in a year or two”.

For this ring I would write “battery life is between 12-15 hours of use, which will typically last about two years under normal use”

I’m not talking grammar, I’m talking convention.

Think of it more like this: If I was selling you a car and said it would last for years, then would you expect it to fall apart after two years? I certainly wouldn’t. When talking about small quantities we tend to specify an exact number (two, three), however as the range becomes larger and less exact we use generalities (years). Because of this “years” would typically refer to a span of at least 3-5 years, and I would argue even longer.