The Nissan battery just died suddenly for no reason.
I have had autos since 2017. I suppose this was the first battery failure in all the new cars i have had. Quite a large battery in that Nissan and a Ford 1.6 diesel. Not a bad car but some of the build was a bit shoddy. Since i got rid of it, the current owner does under 3000 miles a year so a nice car for another pensioner.
What i do have in the garage is 2 large car batteries charged by solar panels that work the external lighting so always have some spare power but by far the best for starting cars is the small lithium power pack which will also run phones, games and charge torches etc.
On the R111, i have a wire in the rear luggage compartment so i can clip on a starer pack without taking the seat off