Galaxy M51: Leave the charger at home

First friends and then tour buddies, Ewan McGregor and Charley Boorman have been travelling around the world for a couple of decades. They recently took a 13,000-mile trip on electric Harley-Davidsons over three months across South and Central America. They had two concerns — can Harley befriend the electric age and would their Harleys retain enough power to take them from one charging point to another. The two of them made it successfully from the city of Ushuaia at the tip of South America to Los Angeles. If wishes were horses — or electric Harleys — we would have liked to have a smartphone that would tide us over at least a couple of days without having to power up.