AC vs DC Charging — What's the Difference?

AC vs DC Charging Explained

Every EV battery stores DC (direct current). But the grid delivers AC (alternating current). The difference between AC and DC charging is simply where that conversion happens.

AC Charging

The car's onboard charger converts AC from the wall into DC for the battery. This is slow because the onboard charger is small — typically 7.4 kW or 11 kW.

• Use case: Home, office, overnight stays.
• Speed: 15–60 km of range added per hour.
• Cost: Cheapest — you pay normal electricity rates.
• Connector in Pakistan: Type 2 (most modern EVs) or GB/T (older Chinese imports).

DC Charging

The charging station itself contains a large industrial converter. It bypasses the onboard charger and pushes DC straight into the battery.

• Use case: Highway stops, road trips, top-ups during errands.
• Speed: 60 kW to 350 kW — adds 200+ km in 20–30 minutes.
• Cost: 2–3× the price of home charging per unit.
• Connector in Pakistan: CCS2 (new EVs) or GB/T (BYD, MG older models).

Which One Should You Use?

Rule of Thumb

Use AC for 80% of your charging and DC only when you need range fast. Frequent DC fast charging in Pakistan's heat can slightly accelerate battery degradation over years.