A random arse thought, but I have never seen the phrase batteries-included a week ago, and now I've seen it like half a dozen times. Am I seriously out of date with the lingo of web dev, or did this word suddenly explode in popularity?
TBH, I haven't seen "batteries included" referencing actual batteries in the package for many years, I suspect because rechargeable batteries are usually expected these days. I've seen remotes with batteries included, but the packages don't botheer to mention that fact.