Chinese automaking juggernaut BYD is taking things to even greater heights, now staking claim to a system it says will make it as quick to charge an electric vehicle as to refuel a gasoline car.

From "more features for no more price" and "smart driving for all," BYD can now add "charging as fast as refueling" to its marketing slogans, helping it to capture further share from legacy automakers and more direct rivals like Elon Musk’s Tesla.

How does BYD’s new battery system work and compare with rivals like Tesla?