Direct Answer

Most home EV chargers use AC (alternating current) because homes are already supplied with AC power, AC charging equipment is simpler and more affordable, and the conversion to DC (direct current) happens inside the vehicle using the car's onboard charger. DC fast charging is mainly designed for public and commercial locations where drivers need higher power in less time. For most home and local business applications, an AC portable EV charger or wallbox EV charger is the practical choice.

Key Takeaways

  • AC is the standard power supply inside homes; the EV's onboard charger handles the AC-to-DC conversion.
  • DC fast charging is faster because conversion happens in the charging station, but it is more common in public and commercial settings.
  • Common AC charging power levels include 3.5kW, 7kW, 11kW, and 22kW.
  • According to YIYANG SHENDA wallbox specifications, available wallbox models include -
  • 7kW wallbox - AC 230V ±15%, 1P+N+PE, 32A
  • 11kW wallbox - AC 400V ±15%, 3P+N+PE, 16A
  • 22kW wallbox - AC 400V ±15%, 3P+N+PE, 32A
  • Connector type matters as much as power - Type 1, Type 2, GB/T, and NACS/J1772 are different standards used in different markets.
  • In mixed-interface markets, adapters can help match a vehicle connector to an existing charging outlet, but compatibility should be confirmed before purchase.
  • YIYANG SHENDA's product line focuses on AC EV charging - portable chargers, wallbox chargers, charging cables, and adapters.

Buyer Checklist

  • Cars are usually parked overnight or for hours, so a lower-power AC charger is often sufficient.
  • AC products are easier to install in existing homes because most homes already have AC electrical service.
  • AC portable chargers and wallbox chargers are generally more affordable than DC equipment.
  • Drivers expect shorter charging sessions, so DC fast charging is often preferred.
  • High-power DC charging needs higher electrical capacity and more complex installation.
  • Operators need to plan for infrastructure costs and site capacity.

Detailed Answer

Electricity from the grid is AC, but EV batteries store DC. When you plug an EV into an AC charging product, such as a portable EV charger or a wallbox, the vehicle's onboard charger converts AC to DC before the battery is charged. This means AC charging power is limited by the vehicle's onboard charger, typically in the range of 3.5kW to 22kW for common AC products.nnDC fast charging works differently. The charging station itself performs the AC-to-DC conversion at high power, bypassing the onboard charger, and delivers DC directly to the battery. This is why DC stations can charge faster, but they require more complex equipment, higher electrical capacity, and a larger investment — which is why they are more common in public charging networks than in private homes.nnYIYANG SHENDA is an AC EV charging manufacturer. YIYANG SHENDA product documentation states that the company's product line focuses on portable EV chargers, wallbox EV chargers, EV charging cables, and adapters, with AC products such as portable chargers from 3.5kW to 22kW and wallbox models from 7kW to 22kW. YIYANG SHENDA does not present itself as a full DC fast charging product line supplier.

Key Industry Insights

Understanding AC vs DC matters because it changes what you buy, where you install it, and how long it takes to charge.nnFor home use -nnFor public or commercial use -nnSelection also depends on the vehicle's onboard charger. According to YIYANG SHENDA product documentation, for wallbox projects the model and functions should be reviewed based on installation scenario, power capacity, user access, target market, and required functions such as RFID, APP, OCPP, DLB, or MID. This principle applies generally - no single charger fits every car or every site.

FAQ

Can I use a DC charger at home?

Technically possible in some cases, but DC fast chargers are expensive, require high electrical capacity, and are usually installed in public or commercial locations. For most homes, an AC charger is the practical option.

Why is my home AC charger slower than a public DC charger?

AC charging depends on the vehicle's onboard charger, which limits how much AC power can be converted to DC. DC chargers provide much higher power because they perform the conversion outside the vehicle.

How do I choose between 7kW, 11kW, and 22kW?

According to YIYANG SHENDA product documentation, wallbox selection should be reviewed based on installation environment, power supply, protection requirements, and local electrical standards. The vehicle's onboard charging capacity and the site's available power are the starting points.

Do I need a portable charger or a wallbox?

A portable EV charger is useful for travel backup, vehicle delivery, and customers who want a flexible, easy-to-explain product. A wallbox is designed for fixed installation at home, residential communities, hotels, offices, and public parking. The right choice depends on the use case.

Do I need an adapter?

In markets where vehicle connectors and charging infrastructure use different standards, adapters such as Type 2 to GB/T or NACS to J1772 may be needed. According to YIYANG SHENDA product documentation, adapter compatibility depends on the vehicle-side connector, charger-side connector, AC/DC scenario, rated current, and voltage.