AC vs. DC Charging Stations: A Complete Guide from Voltage to Charging Speed

With the rise of new energy vehicles, understanding charging equipment is essential. The market mainly offers AC Charging Stations and DC Charging Stations. Regarding Voltage, AC stations handle alternating current (220V/380V), while DC stations convert input 380V AC into high-voltage DC (up to 1000V). The most noticeable difference lies in Power: residential AC stations typically range from 3.5kW to 7kW, whereas DC Charging Stations cover a vast spectrum. This includes the Small DC range (20kW-60kW) suitable for homes and parks, the Medium DC  range (120kW-240kW) common in public areas, and the Large DC range (360kW-960kW). Thanks to innovations like Huawei’s "One Kilometer Per Second" and BYD’s "Megawatt Flash Charge,"​ large DC stations offer extreme efficiency. Charging Duration is another key factor: a 7kW AC station takes 14 hours to charge an 80kWh EV, while a Medium DC station does it in just one. For those seeking a balance between cost and speed, Small DC stations—typically costing under 10,000 CNY and requiring no Power Capacity Expansion—are ideal.

In summary, hybrids pair well with AC or Small DC stations, while pure EVs benefit most from high-power DC stations at Operational Stations.