Combined Charging System
Versions of the specifications

Feature
CCS 1.0
CCS 2.0
Power
< 80 kW
< 350 kW
Voltage
< 500V
200–1000 V
Current
< 200 A
< 500 A
Vehicle connector
Combo 1 or 2 (IEC 62196-3)
Combo 1 or 2 (IEC 62196-3)
Vehicle inlet
Combo 1 or 2 (IEC 62196-3)
Combo 1 or 2 (IEC 62196-3)
Charging communication
High-level communication: DIN SPEC 70121:2014
High-level communication: DIN SPEC 70121:2014 (< 80 kW) ISO/IEC 15118-2:2014 ED1 (<350 kW) ISO/IEC 15118-3:2015 ED1 (<350 kW)
Load balancing
Reactive
Reactive and scheduled
Charge authorization mode
External payment
External payment and/or "plug and charge" (mandatory from 2020 on)
Charging station
IEC 61851-23
IEC 61851-23

Question: How did power, voltage, and current capabilities change from CCS 1.0 to CCS 2.0?
Answer: For DC charging CCS 1.0 supports only charging powers up to 80 kW, voltages up to 500 V, and currents up to 200 A, whereas CCS 2.0 supports charging powers up to 350 kW, voltages from 200 to 1000 V, and currents up to 500 A