What Is CCS Charging? Combined Charging System Explained

CCS, the Combined Charging System, is the mainstream rapid DC charging standard in the UK. It uses a Type 2 connector on top with two extra DC pins below, so one combined inlet on the car handles both everyday AC charging and rapid DC. Because rapid DC chargers are always tethered, you never bring your own CCS cable, unlike the Type 2 AC cable you use at home. CCS delivers direct current straight to the battery at high speed, which is why rapid charging is measured in minutes rather than hours. Most modern EVs sold in the UK use CCS for rapid charging.

At a glance: CCS charging

What does CCS stand for?

CCS stands for Combined Charging System. The name reflects how it combines AC and DC charging into a single car inlet. The upper part is a standard Type 2 connector for everyday AC charging, and below it sit two additional DC pins used only for rapid charging. This combined design means a car needs just one charging port to cover both home AC and motorway-style rapid DC, which keeps things simple for drivers and has helped CCS become the dominant rapid standard.

How does CCS rapid charging work?

CCS rapid charging feeds direct current straight into the battery, bypassing the car's onboard AC charger. Because the onboard charger is the bottleneck on AC, sending DC directly allows much higher power and far shorter charging times. The charger and car communicate to manage the rate safely, ramping down as the battery fills. Rapid DC sessions are measured in minutes, typically to add a useful chunk of range on a longer journey, rather than the hours a home AC charge takes overnight.

Do I need a CCS cable?

No, you never buy a CCS cable. Rapid DC chargers are always tethered, so the CCS lead is permanently attached to the charging unit. You simply take it from the holster and plug it into your car.

• Rapid DC: tethered CCS cable supplied by the charger.
• Home and public AC: your own Type 2 to Type 2 cable.
• One inlet: the combined CCS port handles both.

Is CCS the same as Type 2?

Not exactly, but they are closely related. A CCS connector uses a Type 2 shape on top with two DC pins added below. So a car with a CCS inlet accepts an ordinary Type 2 AC cable for home charging, and the larger tethered CCS connector for rapid DC. In practice this means your Type 2 cable plugs into the top portion of the same inlet you use for rapid charging. It is one combined port doing two jobs.

How fast is CCS charging?

CCS is rapid, with public chargers commonly ranging from 50kW up to much higher speeds. The actual rate depends on the charger, the car's maximum DC acceptance, the battery temperature, and the state of charge, since charging slows as the battery fills. Compared with home AC at around 7.4kW, CCS is dramatically faster and suited to topping up on longer trips. For daily use, though, most drivers still rely on slower, cheaper overnight AC charging at home.

Frequently asked questions

What is CCS charging in simple terms?

CCS, or Combined Charging System, is the main rapid DC charging standard. It uses a Type 2 connector with two extra DC pins, letting one car inlet handle both home AC and rapid DC. The rapid cable is always attached to the charger, so you plug straight in without bringing your own lead.

Do I need to buy a CCS cable?

No. Rapid DC chargers are tethered, so the CCS cable is permanently attached to the unit. You only ever buy a cable for AC charging, which uses a Type 2 to Type 2 lead for cars sold since 2018. For rapid charging you simply use the charger's own connector.

Is CCS the same as a Type 2 connector?

They are related but not identical. CCS uses a Type 2 shape on top with two DC pins below. A CCS inlet therefore accepts a standard Type 2 AC cable for home charging and the tethered CCS connector for rapid DC, all through one combined port on the car.

How fast is CCS rapid charging?

Rapid, often from 50kW upwards, far quicker than home AC at around 7.4kW. The real speed depends on the charger, the car's maximum DC rate, battery temperature and state of charge. Charging slows as the battery fills, so rapid sessions are best for topping up on longer journeys rather than daily use.

Can every EV use CCS?

Most modern EVs sold in the UK use CCS for rapid charging. Some older cars use the CHAdeMO standard instead, which is gradually being phased out. Check your car's charging port and specification to confirm it supports CCS before relying on a rapid CCS charger on a trip.

Does CCS replace home charging?

No. CCS is for rapid top-ups on longer journeys, not everyday use. For daily charging, home AC using a Type 2 cable is slower but far cheaper, especially on an off-peak EV tariff. Most drivers charge overnight at home and use rapid CCS only occasionally when travelling.

CCS covers rapid charging, but for everyday use you will rely on AC. See the full EV charging connectors explained guide for the wider picture, and for the older rapid standard read what is CHAdeMO charging. To sort your day-to-day home cable, match your car on the cable finder.