laptop suggestion for writing & internet: under $700 USD, USA

Hi, all, read through a lot of posts and would love to get a recommendation! I'd like to get a second laptop that I can use just for my writing projects, with limited Internet use. The idea being that I wouldn't be logged into all of my usual time-wasters or connected to iMessage, etc. I have tried creating a different profile for writing but I would love to have a more basic, inexpensive laptop that I can use SOLELY for writing. For this purpose I would just need to have MS Word, FinalDraft, an Internet browser, and a music app.

The Form

LAPTOP QUESTIONNAIRE

• Country: USA
• Budget: under $700 USD.
• Are you open to refurbs/used options?

Yes.

• Screen size

Any, above 13". I've never had a laptop with a much bigger screen, but it could be good to try one.

• Weight limit

Anything reasonable.

• Purpose

For writing projects, with limited Internet.

I basically want a low-tech laptop that I can use to only focus on writing so that I don't get distracted by all my other apps.

• Form factor

none that I can think of.

• Intended usage

MS Word

Scrivener

FinalDraft

Firefox/internet browser

QOBuz/music application

• Desired battery life

8 hours

• Please list, in order of most important to least important, the priority between Size, Weight, Performance, Battery life

Priority:

Performance (would like it to last, and not have to re-purchase)

Battery Life

Weight & Size equal; would like these to be reasonable, but not planning to particularly travel a bunch with it.

• Info/Requirements

As I mentioned, I'm hoping to purchase something inexpensive that will last, that I can use as my trusty writing-focused computer. It doesn't need to be too fancy, I just want it to be reliable, not too slow, and durable! I don't plan to transport it all that much, but might from time to time. Still, battery life would be nice so I can be in different rooms/places if I need to. I would like the performance to not be slow.

If there's anything I haven't thought of, feel free to let me know.

Thanks so much for your help.