Hongqi says its experimental battery can add 60% charge in under four minutes with a peak charging rate of 12C, or 12 times the pack's capacity.

Hongqi says its new battery charged from 10 to 70 per cent in under four minutes during tests. The development marks another step in China's race to cut EV

Hongqi says its experimental battery can add 60% charge in under four minutes with a peak charging rate of 12C, or 12 times the pack's capacity.