This powerbank should be enough to charge a lot of different laptops or Chromebooks made recently. I got one for kids school laptop since the school won't let them charge.
Edit: original store OOS, more stock here: https://www.ebay.com.au/itm/353939301003?mkcid=16&mkevt=1&mk…
Does this offer Super Fast Charging for Samsung devices? I can never work it out :(