AC EV Chargers
AC EV chargers effectively convert alternating current (AC) from the electrical grid into direct current (DC), which is required to charge electric vehicle (EV) batteries. These chargers are particularly well-suited for residential use, as they demand less grid capacity than DC chargers, allowing for flexible installation in a variety of settings.
As a trusted wholesale manufacturer of AC EV chargers in China, we offer competitive pricing and a wide range of customizable options. Our chargers are designed with universal plugs, ensuring compatibility with various EV models. This versatility makes them ideal for use in homes, communities, and industrial environments. Additionally, we provide OEM and ODM services, allowing you to customize the chargers to meet your branding and feature preferences.
With a strong commitment to quality and affordability, we aim to enhance your EV charging experience, providing solutions that are both convenient and efficient. AC charging remains one of the most popular and reliable methods for EV owners, making it an essential part of the evolving electric vehicle ecosystem.
How AC Charging Works
1. Charging Process
The AC charging process involves transferring alternating current from the grid to the EV. Inside the vehicle, an onboard charger converts this AC power into the direct current (DC) required to charge the battery.
2. Charging Rate
AC chargers typically operate at power levels ranging from 3.7 kW to 22 kW, depending on the charger and the EV's onboard charger capacity. For residential chargers, 7.2 kW is a common standard, while higher-power options are available for commercial or workplace settings.
3. Time to Charge
Charging times depend on the battery's size, the charger's power output, and the current state of charge. For instance, a 7 kW home charger can fully charge a Tesla Model 3 in approximately 8 hours, making it ideal for overnight charging.
4. Accessibility
AC chargers are easy to install and widely available, particularly in residential areas, workplaces, and public locations. Their accessibility has contributed significantly to the growing adoption of EVs.
Advantages of AC Charging
1. Perfect for Home Use
AC chargers, often referred to as wallboxes, are well-suited for private residences. They allow EV owners to conveniently charge their vehicles overnight or whenever the car is parked.
2. Cost-Effective
Installing an AC charger at home is a relatively affordable investment, especially compared to public DC fast chargers. Installation is straightforward, though it must be performed by a certified electrician to ensure safety and compliance with local regulations.
3. Smart Features
Many modern AC chargers come equipped with advanced features, such as app connectivity, enabling users to monitor and control charging sessions remotely. Features like scheduled charging help optimize energy usage and take advantage of off-peak electricity rates.
Disadvantages of AC Charging
1. Slower Charging Speeds
AC chargers are slower compared to DC fast chargers, which can deliver a substantial charge in minutes. While this is typically not a problem for overnight or workplace charging, it can be inconvenient for long road trips or situations requiring quick top-ups.
2. Power Limitations
The power output of AC chargers is constrained by both the charger and the EV's onboard charger. For example, even if an AC charger offers 22 kW, the EV will only charge at the maximum rate its onboard charger can handle.
Difference Between AC and DC Charging
The primary distinction between AC and DC charging lies in where the conversion from alternating current (AC) to direct current (DC) takes place. Regardless of whether you use an AC or DC charging station, the electric vehicle (EV) battery always stores DC energy.
In AC charging, the conversion from AC (from the grid) to DC occurs within the vehicle's onboard charger. The car then uses this DC power to charge its battery. On the other hand, with DC charging, the conversion happens directly within the charging station itself. This allows DC power to flow directly from the station to the EV battery without the need for conversion inside the vehicle. Since the charging station can accommodate larger and more powerful converters, it can convert AC power from the grid much faster.
As a result, DC fast chargers can deliver significantly higher power outputs, sometimes up to 400 kW, enabling them to fully charge an EV in a matter of minutes, making them ideal for quick top-ups during long journeys.