@popey There's two 5m coils about 2 meters to my left, one already plugged into the house switch, also a 3m 4 way mains block. A couple of spare USB cables in arms reach. So 30s.
Anything more and I'd have to go to the garden office/workshop so a couple of minutes.
Follow up nerd question. How many DHCP leases does the home router have active at the moment? Ours has 19.