Side by side comparison: AC vs DC Charging

Understanding AC and DC Charging: Key Differences and When to Use Each

As electric vehicles (EVs) gain momentum in the global shift toward sustainable transportation, understanding how they charge is essential—especially the distinction between AC (Alternating Current) and DC (Direct Current) charging. Each serves a different purpose and offers unique advantages depending on the situation.

What’s the Difference Between AC and DC Charging?

The core difference between AC and DC charging lies in how electricity is delivered and processed. The power grid supplies electricity in the form of AC, which is compatible with most residential and commercial power sources. However, EV batteries can only store energy in DC form.

In AC charging, the EV’s onboard charger converts AC power into DC before storing it in the battery. This process is relatively slow and limited by the power capacity of the onboard charger, usually between 3.6 kW and 22 kW.

In contrast, DC charging bypasses the onboard converter entirely by supplying DC power directly to the battery via a high-powered external charger. This allows for much faster charging, often delivering between 50 kW and 350 kW, depending on the vehicle and station.

ACMobility recently launched its new charging stations which are also complemented with the introduction of SuperFast and UltraFast Chargers. Both chargers have the capability of charging up to 480kW, which will help significantly enhance the EV ownership and charging experience for more Filipinos nationwide.

Advantages of AC Charging

1. Ideal for Extended Parking

   AC charging works best where vehicles naturally stay parked for longer periods—at home, at work, or while staying overnight. With a Level 2 AC charger, most EVs can fully recharge within 6 to 12 hours, making charging a seamless part of daily routines.

2. More Accessible and Cost-Efficient

   AC chargers are generally more affordable to install and maintain. They can often be supported by existing electrical infrastructure, avoiding the need for extensive upgrades. This makes AC charging a practical solution for residential, workplace, and destination charging.

Advantages of DC Charging

1. Fast Charging for Long-Distance Travel

   DC charging is designed for situations where speed matters—such as road trips or time-sensitive stops. Many EVs can recharge up to 80% in 20 to 60 minutes using a DC fast charger, significantly reducing downtime while traveling.

2. Built for Public and High-Traffic Locations

   DC chargers are typically deployed in public, high-traffic areas like highway service stops, shopping centers, and transit hubs. This enables quicker vehicle turnover and supports drivers who rely on public charging rather than home setups.

Which Should You Use?

• Use AC charging when time is on your side—such as overnight or during work hours.

• Use DC charging when you’re on the move and need quick power, especially on long trips.

Together, AC and DC charging options form a complementary ecosystem, ensuring EV drivers have flexible, efficient, and reliable ways to stay charged—no matter the journey. ACMobility is proud to provide both, and at a growing number of convenient locations nationwide.