Have you ever come across an acronym CCS when studying the characteristics of an electric vehicle or at a charging station? If so, you probably wondered: what is it, why is it called a “combined system” and why is it better (or worse) than alternatives like CHAdeMO or Type 2. In this article we will look at CCS thoroughly - from technical nuances to practical tips for use.
You can argue endlessly about which charging system is better. But the fact remains: by 2026, more than 70% of new electric vehicles in Europe and the USA are equipped with a CCS connector, and in China its share exceeds 90% among foreign brands. This is not an accident, but the result of the evolution of standards, where CCS became a compromise between speed, versatility and compatibility. Next, you will find out why manufacturers rely on this technology - and how to use it with maximum efficiency.
What is CCS and what does the abbreviation stand for?
CCS (English) Combined Charging System) translates as "combined charging system". This is not just a connector, but a whole protocol, which combines two types of charging in one connector:
- 🔌 Alternating Current (AC) — standard “slow” charging from a home outlet or wallbox (up to 43 kW).
- ⚡ Direct current (DC) — accelerated charging at specialized stations (up to 350 kW and above).
Main advantage CCS — backward compatibility. The connector physically aligns the contacts Type 2 (for AC) and additional pins for DC-charging. This means that an electric car with CCS you can connect:
- 🔄 To a regular charging station Type 2 (for example, at home or at work).
- ⚡ To the high-voltage station CCS Combo (on highways or in commercial areas).
For comparison: competing standard CHAdeMO (developed by the Japanese) supports only DC-charging, and for AC requires a separate connector Type 1 or Type 2. This complicates the vehicle design and increases the weight of the cables.
CCS connector device: what's inside and how it works
External connector CCS Combo reminds Type 2, but with two key differences:
- Additional contacts from below (for DC-charging).
- More massive and rigid design (due to high currents up to 500A).
Let's deal with pin-out (location of contacts) using an example CCS Combo 2 (European standard):
| Contact | Purpose | Current type |
|---|---|---|
L1, L2, L3 |
Phase wires (3 phases) | AC |
N |
Neutral | AC |
PE |
Grounding | AC/DC |
CC1, CC2 |
Charging control (CAN bus) | AC/DC |
DC+, DC− |
Plus/minus DC | DC |
When connecting to a station DC (for example, Ionity or Tesla Supercharger with adapter), the car charger automatically detects the type of current and activates the appropriate contacts. The process is controlled by protocol PLC (Power Line Communication) or CAN, which eliminates errors and overheating.
Why is CCS replacing CHAdeMO?
The Japanese CHAdeMO standard was originally developed for DC charging, but its maximum power is limited to 100 kW (versus 350+ kW for CCS). In addition, CHAdeMO requires a separate AC connector, which increases the weight and cost of the vehicle. In 2020, even Nissan (the pioneer of CHAdeMO) switched to CCS in the Ariya.
CCS Combo 1 vs CCS Combo 2: what is the difference and which is better
There are two options CCS, differing in the basic connector for AC-charging:
- 🇺🇸 CCS Combo 1 - based on Type 1 (1 phase, up to 7.4 kW). Popular in the USA and Asia (eg Chevrolet Bolt, Hyundai Kona Electric).
- 🇪🇺 CCS Combo 2 - based on Type 2 (3 phases, up to 43 kW). Standard in Europe (Volkswagen ID.4, BMW i4, Tesla Model 3 from 2022).
Key differences:
| Parameter | CCS Combo 1 | CCS Combo 2 |
|---|---|---|
| Basic AC connector | Type 1 (1 phase) | Type 2 (3 phases) |
| Max. AC power | 7.4 kW | 43 kW |
| Max. DC power | 350+ kW | 350+ kW |
| Regions | USA, Korea, Japan | Europe, China, Australia |
For Russian electric vehicle owners CCS Combo 2 preferably - it is compatible with most European charging stations (e.g. network Fastned or GreenWay). Combo 1 will require an adapter to connect to Type 2, which is not always convenient.
If you are planning a trip around Europe in an electric car with CCS Combo 1, order a Type 1 → Type 2 adapter in advance. The cost is about 3-5 thousand rubles, but it is cheaper than looking for a station with CHAdeMO.
Charging speed via CCS: real numbers and myths
Manufacturers often claim support for “charging up to 80% in 15 minutes,” but in practice the speed depends on three factors:
- Station power (50 kW vs 350 kW).
- Battery temperature (optimally 20–30°C).
- Battery status (degradation slows down over time).
Example for Hyundai Ioniq 5 (77.4 kWh battery):
- ⚡ At the station 350 kW: 10–80% in ~18 minutes (peak speed 240 kW).
- ⚡ At the station 150 kW: 10–80% in ~30 minutes.
- 🔌 From wallbox 11 kW: Full charge in ~7 hours.
Important! After 80%, the charging speed drops - this is normal. Manufacturers limit the current to extend battery life. For example, on Tesla Model Y after 80% the power is reduced from 250 kW to 50 kW.
The maximum charging speed is indicated for ideal conditions (battery temperature, charge level 10–30%). In reality, it is 20–30% lower.
CCS vs CHAdeMO vs Type 2: comparison of charging standards
To understand why CCS has become a leader, let's compare it with its main competitors:
| Parameter | CCS (Combo 2) | CHAdeMO | Type 2 (AC) | Tesla Supercharger |
|---|---|---|---|---|
| Max. DC power | 350+ kW | 100 kW | — | 250 kW |
| AC Compatible | Yes (Type 2) | No (requires a separate connector) | Yes | Yes (with adapter) |
| Cable weight | Medium | High (two cables) | Low | Low (integrated into the station) |
| Prospects | Standard in EU and USA | Obsolete (except Japan) | Only for slow charging | Closed ecosystem |
CHAdeMO loses for two reasons:
- Limited power (maximum 100 kW vs. 350 kW for CCS).
- Lack of backward compatibility with AC (you need two connectors on the car).
Type 2 Suitable for home charging only, and Tesla Supercharger - a proprietary network (although starting in 2022 Tesla is opening it up to other brands via adapters).
Check the maximum power of the station (optimally 150+ kW)|Make sure the connector fits your car (Combo 1 or 2)|Check reviews about the reliability of the station (some networks often break down)|Check the price per kWh (in Europe from 0.3 to 0.8 €)|Use apps like PlugShare or ChargeMap to search-->
Problems with CCS: common mistakes and how to avoid them
Even with such an advanced standard, electric vehicle owners face challenges. Here are the most common:
⚠️ Attention! Never connect the connector CCS to the station CHAdeMO via an adapter, unless provided by the manufacturer. Risk of short circuit and battery damage!
Problem 1: The connector does not lock into the socket
Reasons:
- 🔧 Contact contamination (dust, oxidation). Solution: Clean with alcohol.
- 🔌 Lock wear (a common problem at public stations). Solution: try a different cable.
Problem 2: Charging starts but immediately stops
Possible reasons:
- 🔋 Battery overheating (you need to cool the car).
- 📱 Payment error (at commercial stations). Solution: restart the session.
- ⚡ Power mismatch (for example, the station is 50 kW, but the car only supports 100+ kW).
Problem 3: Slow charging speed
What to check:
- 🔌 Connection type (perhaps the station issues AC instead of DC).
- 📉 Battery level (above 80% the speed drops).
- 🌡️ Ambient temperature (below 0°C charging slows down).
⚠️ Attention! If at the station CCS The red light is flashing, do not try to restart charging repeatedly - this may block the connector. It's better to contact network support.
The future of CCS: what awaits the standard in 2026–2026
In 2023, the European Union decided to ban on sales of new cars with internal combustion engines from 2035. This will accelerate the transition to electric vehicles, and with it the development of infrastructure CCS. Here are the key trends:
1. Increase in power to 500+ kW
Companies ABB and Siemens stations are already being tested 1 MW, which will be able to charge trucks and buses. For passenger cars this means reducing charging time to 5–10 minutes.
2. Unification with the Chinese GB/T standard
China used its own connector until 2023 GB/Tbut now Tesla and local producers (BYD, NIO) go to CCS. This will make traveling between countries easier.
3. Wireless charging based on CCS
Company WiTricity develops inductive charging systems up to 11 kW, compatible with the protocol CCS. This will allow you to charge the car without cables - just park over a special panel.
4. Integration with V2G (Vehicle-to-Grid)
Technology V2G allows you to transfer energy from the car battery back to the network. CCS already supports this functionality (standard ISO 15118-20), which will make electric vehicles part of smart energy systems.
By 2026, more than 90% of the world's new electric vehicles will be equipped with CCS, and CHAdeMO networks will begin to be phased out (with the exception of Japan).
FAQ: Frequently asked questions about CCS in cars
Is it possible to connect a car with CCS Combo 1 to a CCS Combo 2 station?
No, the connectors are physically incompatible due to different basic standards (Type 1 vs Type 2). However, you can use an adapter Type 1 → Type 2 for AC-charging (but not for DC!).
Why does CCS not work with my car at some stations?
Possible reasons:
- The station requires authorization through the application (for example, Shell Recharge or Ionity).
- The station's power exceeds your vehicle's limit (for example, the station is 350 kW, but the car only supports 100 kW).
- Problems with the communication protocol (update the vehicle software).
How much does it cost to charge at a CCS station?
Prices vary:
- 🇷🇺 Russia: 8–15 ₽/kWh (at stations Rosset or Evatek).
- 🇪🇺 Europe: 0.3–0.8 €/kWh (cheapest - Tesla Supercharger for non-Tesla: ~0.45 €).
- 🇺🇸 USA: $0.15–0.40/kWh (networks Electrify America or ChargePoint).
Tip: Use apps PlugShare or A Better Routeplannerto compare prices on the route.
Can I modify my vehicle myself to support CCS?
Technically possible, but not recommended. To do this you will need:
- Replace the charging port (physically).
- Update on-board charging module (OBC) and inverter.
- Reflash the ECU (electronic control unit).
The cost of such work often exceeds 100–150 thousand rubles, and the car’s warranty will be voided. It is better to initially choose a model with CCS.
Which cars support CCS?
Full list of models with CCS (for 2026):
- 🇪🇺 European: Volkswagen ID.3/ID.4, BMW i4/iX, Mercedes EQS, Audi e-tron.
- 🇺🇸 American: Ford Mustang Mach-E, Chevrolet Bolt EUV, Rivian R1T.
- 🇰🇷 Korean: Hyundai Ioniq 5/6, Kia EV6, Genesis GV60.
- 🇨🇳 Chinese: BYD Seal, NIO ET5 (from 2023).
- 🚗 Tesla (all models from 2022 in Europe, from 2026 in the USA).
Exceptions: Nissan Leaf (only CHAdeMO), Renault Zoe (only Type 2 AC until 2020).