They're claiming that it has a max range of 1860 miles for a 100kg battery system: > The Phinergy aluminum-air battery at 100 kilograms (220 pounds) weight con

They're claiming that it has a max range of 1860 miles for a 100kg battery system: > The Phinergy aluminum-air battery at 100 kilograms (220 pounds) weight contained enough on board energy to allow the vehicle to travel up to 3,000 kilometers (over 1,860 miles) The article does seem slightly unclear on that point, though. Again, if you have normal driving patterns this Al-O2 system is a backup battery. You'd be using a smaller li-ion battery for the day-to-day drives. That means a normal user wouldn't need a new Al-O2 battery every month, because they'd only rarely be using it.