Electric Vehicle DC Fast Charger

Electric vehicle DC fast chargers are powerful—capable of delivering 100 kilowatts or more. You’ll typically find them rated at 100 kW, 150 kW, or even 350 kW, but the maximum electric vehicle charging speed may fall somewhere between these numbers. Even the latest electric vehicles with large-capacity battery packs can reduce charging times.

For electric vehicles capable of accepting 100 kW or higher power, they can charge from 20% to 80% in just 20-30 minutes. And if your electric vehicle can only accept up to 50 kW of DC power, they can still use ultra-fast charging stations, as these smart chargers automatically adjust to the power your electric vehicle can handle. Equipped with a connection cable and using CCS or CHAdeMO connectors, just like standard fast chargers.

DC Fast Charger for Electric Vehicles

As a core solution for electric vehicle energy supply, DC fast charging technology significantly improves user experience through its high efficiency. Current mainstream equipment on the market has an output power range of 40-360kW, and models that comply with the GB/T 20234.3-2015 standard can achieve a charging efficiency of 20% to 80% SOC (State of Charge) in 30 minutes.

Modular design further enhances the adaptability of the equipment. Taking the RUIHUA 180 kW model as an example, its power modules support 45 kW unit expansion, with a maximum output of 180 kW, and feature multi-channel independent charging management capabilities, effectively improving infrastructure utilization rates.

Technical Implementation Mechanism Analysis

Unlike the AC-DC conversion process used in AC charging, the DC fast charging system adopts a direct power supply architecture, eliminating the need for an on-board charger (OBC) and improving energy conversion efficiency by approximately 7-12%. The charging process strictly follows the ISO 15118 protocol:

Initialization phase completes Plug & Charge authentication
The charging control unit obtains battery parameters in real time through the BMS (battery management system)
Adopts a CC-CV (Constant Current-Constant Voltage) segmented control strategy

Achieves millisecond-level status monitoring via the CAN 2.0B bus, including:

Cell voltage deviation (ΔV ≤ 50 mV)
Temperature gradient (ΔT ≤ 5°C/min)
Current fluctuation rate (≤ 3%) This mechanism ensures a charging safety compliance rate of ≥95% even on an 800V high-voltage platform.

From the freeway to the emergency scene

The Electric Vehicle DC Fast Charger is the fastest way to charge an electric vehicle and is usually located in a highway service area or close to a major highway. Depending on the model, it only takes 10-15 minutes to charge an electric vehicle to 80%, the power of the charger represents the maximum charging speed available, but as the battery nears full capacity, the vehicle will reduce the charging speed.

Therefore, the time required for charging to 80% is listed, after which the EV’s charging speed decreases significantly. This maximizes charging efficiency and helps protect the battery.

The RUIHUA 180kW, with its modular structure and three-vehicle simultaneous charging function, is widely used in high-speed service areas and urban transportation hubs; in addition, there is a portable 30kW fast-charging device, which, thanks to its lightweight design, has become an ideal choice for outdoor scenarios or emergency power replenishment. Diversified scenarios allow DC fast charging technology to be truly integrated into all aspects of electric mobility.

FAQ

A: Currently available DC fast chargers require a minimum input of 480 volts and 100 amps, but newer chargers are available up to 1000 volts and 500 amps (up to 360 kW).

A: Depending on the electric vehicle, DC fast chargers can currently charge a 300-mile range battery 10-80% in about 20 minutes (about 540 miles per hour of charge).

A：DC fast chargers are the most powerful electric vehicle chargers on the market. They are commonly used as range extenders on major routes for long trips and in urban environments to support drivers who don’t have access to a home charging facility or who have very long driving distances. At current charging speeds, they are ideal for locations where people spend between 30 minutes and an hour per charge, such as restaurants, recreational areas and shopping centers.

It is important to note that not all EV models support DC fast charging, so not all EV drivers will have access to DC fast charging. Additionally, there are multiple standards for DC fast charger connectors, while there is only one common standard (SAE J1772) for Level 1 and Level 2 charging. There are three types of connectors for DC fast chargers: CHAdeMO, CCS and Tesla, although CCS is increasingly becoming the industry standard.

Electric Vehicle DC Fast Charger Company in China

Operating from an ‌R&D center in Shenzhen‌ and a ‌72,000 sq m production base in Ruichang City‌, Ruihua specializes in developing and manufacturing ‌EV chargers, charging cabinets, and power supplies‌, delivering ‌global one-stop charging solutions‌.

Equipped with ‌advanced imported machinery‌ and a ‌skilled 300+ workforce‌, Ruihua maintains ‌strict ISO9001 quality management‌. Its major innovation, the ‌2022 pioneering Integrated EV Charger‌, overcomes traditional design limitations with a ‌simplified internal structure‌, ‌setting a new industry standard‌.

‌We invite partners for OEM/ODM collaborations and customized new energy solutions.‌