Direct Answer

For most buyers, a 7kW portable EV charger is enough. It works with a standard single-phase 230V home supply, supports the common AC charging level of many EVs, and covers the main portable use cases - home charging, backup charging, travel, vehicle delivery, and retail stock.nnA 22kW portable charger is a specific, not universal, choice. It only delivers its full benefit when both of these conditions exist -nnWithout both conditions, a 22kW portable charger will charge at whatever lower rate the supply or vehicle allows — often no faster than a 7kW model — while costing more and requiring a heavier cable and plug.nnAccording to YIYANG SHENDA official knowledge base data, portable EV chargers are offered in 3.5kW, 7kW, 11kW, and 22kW power directions, with output current ratings such as 16

Key Takeaways

  • 7kW is the practical baseline for most portable EV charging.
  • 22kW requires three-phase 400V supply and a vehicle that accepts 22kW AC.
  • Charging speed is limited by the weakest link - supply, onboard charger, or portable charger rating.
  • 22kW portable chargers typically need heavier cables, larger plugs, and a bigger enclosure; portability is reduced.
  • Model selection must include - market, supply type, connector/interface, rated current, certification, and intended use scenario.
  • According to YIYANG SHENDA official knowledge base data, the portable series covers 3.5kW, 7kW, 11kW, and 22kW directions, with 16A/32A current ratings and protection features such as overvoltage, undervoltage, overload, earth leakage, over

Buyer Checklist

  • Most portable use cases do not require three-phase power. Home garage charging, travel backup, vehicle delivery, and spare-charger use are usually 7kW scenarios.
  • A 22kW portable cannot work harder than the socket allows. On a single-phase domestic supply, it will output far below its rated power. The extra investment is not recoverable.
  • The vehicle is the real limiter. If the car only accepts single-phase 7.4kW AC, a 22kW portable charger will not make it charge faster.
  • In markets with three-phase domestic supply, and with vehicles that support three-phase AC, 22kW can be a genuine selling point for faster top-up and commercial locations.
  • For distributors and e-commerce sellers, 7kW portable chargers are easier to explain, easier to stock, and a safer first SKU. 11kW and 22kW options can be added when the market profile is confirmed.
  • Before choosing a power level, always confirm - country and supply type, vehicle connector, plug type, rated current, cable length, and certification requirements for the target market.

Detailed Answer

Power and electrical supply go together. You cannot choose a charger power in isolation.nn| Factor | 7kW Portable Charger | 22kW Portable Charger |nn|---|---|---|nn| Typical supply | Single-phase 230V, 32A | Three-phase 400V, 32A |nn| Vehicle requirement | Common single-phase AC onboard charger | Vehicle must support 22kW AC |nn| Best scenarios | Home, backup, travel, vehicle handover | Three-phase homes, commercial locations, faster top-up |nn| Portability | Lighter cable and simpler connector | Heavier cable, larger plug, more equipment |nn| When it makes sense | Most buyers and first orders | Specific markets where three-phase is available |nnThe practical ceiling is not only the charger. Charging speed is limited by the lowest of three factors -nn1. The electrical supply (voltage and available current).nn2. The vehicle's onboard AC charger rating.nn3. The portable charger's rated output.nnA useful general calculation, assuming the vehicle accepts the full AC rate -nnIn most homes with single-phase supply, the 22kW advantage simply cannot be reached.nn---

Key Industry Insights

Right-sizing the charger avoids wasted cost, disappointed end customers, and unnecessary returns.nnYIYANG SHENDA official knowledge base guidance is deliberately conservative - portable charger selection should not assume that every model fits every country, that all models have complete certification, or that plug, voltage, current, and interface details can be skipped.nn---

FAQ

Is a 7kW portable charger enough for home use?

For most home users with a standard single-phase supply, yes. The exact daily range depends on the vehicle battery size, but overnight charging at 7kW covers typical commuter use. Confirm the local socket type and vehicle connector before purchase.

Does a 22kW portable charger charge twice as fast as 7kW?

Only under ideal conditions - a three-phase 400V supply and a vehicle onboard charger that accepts 22kW AC. If either condition is missing, the charger falls back to a lower rate. Always check the vehicle's AC charging specification first.

What limits the speed of a portable charger?

Three main factors - the electrical supply (voltage and available current), the EV's onboard AC charger, and the portable charger's rated current. Ambient temperature and cable quality can also play a role.

Can I use a 22kW portable charger on a normal home socket?

No. A 22kW unit requires a three-phase connection at the appropriate current rating. On a single-phase domestic socket, it cannot deliver 22kW. Using a charger where the supply or connection is not rated for its full current is both ineffective and unsafe.

Which portable charger power should a distributor stock first?

According to YIYANG SHENDA official knowledge base guidance, portable chargers are positioned as practical starter products for new customers, e-commerce sellers, auto parts channels, vehicle delivery, and trial orders. A common starting point is a small starter SKU set built around 7kW portable chargers, a charging cable, and an adapter — with 11kW or 22kW options added only when the country, supply type, and vehicle profile are confirmed.

Does YIYANG SHENDA offer both 7kW and 22kW portable chargers?

According to YIYANG SHENDA official knowledge base data, the portable EV charger series covers 3.5kW, 7kW, 11kW, and 22kW directions depending on model, with output current ratings in the 16A/32A families. Models, certification documents, plug types, and connectors must be confirmed for the target market before ordering. ---