Plug wars: the battle for electric car supremacy
German carmakers hope a network of high-power charging stations they are rolling out with Ford will set an industry standard for plugs and protocols that will give them an edge over electric car rivals.
At the moment, Tesla and carmakers in Japan and Germany use different plugs and communication protocols to link batteries to chargers, but firms building the charging networks needed for electric vehicles to become mainstream say the number of plug formats will need to be limited to keep costs down.