## Direct Answer
For many home and travel scenarios, a 7kW portable EV charger is often sufficient. A 22kW portable charger is only worth choosing when three conditions are met at the same time – the vehicle’s onboard charger accepts 22kW AC, the electrical supply at the destination is three-phase, and the user genuinely needs the faster top-up speed. If one of those conditions is missing, 22kW adds cost and weight without adding charging speed.
## Key Takeaways
– Vehicle onboard charger (OBC): confirm the car’s maximum AC charge rate. This is the first and most important check.
– Electrical supply at the charging location – single-phase or three-phase, voltage, current, and available socket type.
– Plug and connector type – Type 2, Type 1, GB/T or other, matching the vehicle-side and charger-side connectors.
– Cable and configuration – cable length, fixed or replaceable cable, rated current, and whether the plug matches the local socket standard.
– Use scenario – overnight home charging, travel backup, vehicle delivery, workplace charging, or retail demonstration.
– Certification and market requirements – check by model, target country and channel. IC-CPD documents commonly cover 6A–32A at 230V AC, while higher-power portable models need separate model-specific confirmation.
– Total cost, not unit price – lower price can be outweighed by return rates, compatibility complaints and after-sales issues.
– A 7kW charge adds roughly 7 kWh of energy per hour. For a typical EV, this is commonly enough for overnight home charging.
– A 22kW charge adds roughly 22 kWh per hour when the vehicle and the three-phase supply allow it — about three times faster than 7kW.
– If the vehicle’s onboard charger is 7kW, both options deliver the same actual speed.
## Buyer Checklist
– The car limits the speed. The vehicle’s onboard AC charger is the bottleneck. If the car can only accept 7kW AC, a 22kW portable charger will still deliver roughly 7kW. The extra power is simply not used.
– The outlet limits the speed. A regular single-phase household socket cannot feed a 22kW three-phase portable charger at its rated power. Without an appropriate three-phase outlet and connection point, the 22kW model cannot operate at full s
– Wrong selection creates hidden costs. Buying a more powerful portable charger than the car or site can use means paying extra for no benefit. For resellers and e-commerce sellers, it can also create compatibility complaints, returns and neg
– Certification is model-specific. YIYANG SHENDA’s official guidance is that certificate documents should be reviewed by product model, target country, sales channel and certificate holder. “All models certified for all markets” is not a vali
## Detailed Answer
Portable EV chargers are AC charging devices that plug into an electrical outlet or socket and connect to the vehicle. The “kW” figure describes how much AC power the charger can draw.
According to YIYANG SHENDA’s product guidance, its portable EV charger range covers 3.5kW, 7kW, 11kW and 22kW options, and the suitable model should be confirmed by target market, plug, connector and electrical configuration before purchase.
The most common portable charger certification path — the IC-CPD (in-cable control and protection device) for Mode 2 charging — is typically documented for 6A–32A at 230V AC, which covers the 7kW class. Higher-power portable models such as 11kW and 22kW have separate model-specific documentation. In all cases, certificate suitability should be checked by product model, target market, certificate holder and sales channel.
## Key Industry Insights
Choosing portable charger power is not about picking the biggest number. It is about matching three things – the car, the electricity supply, and the real-world use case.
For distributors, brand owners, installers and e-commerce sellers, the practical implication is this – offer power levels that match the vehicles and electrical systems of the target market, not simply the highest kW figure.
## FAQ
### Is a 22kW portable charger always faster than a 7kW one?
No. The charging speed is limited by the vehicle’s onboard AC charger. If the car accepts a maximum of 7kW AC, a 22kW portable charger will not charge it faster than a 7kW model.
### Can a 7kW portable charger charge a car that supports 22kW?
Yes. The charger will operate at its own maximum — 7kW — which may be slower than the car’s capability. The charging current must still match the rated values of the plug, cable, socket and local electrical installation.
### Do I need three-phase power for a 22kW portable charger?
Yes, to reach the full 22kW rated output. A 22kW AC portable charger at 32A per phase normally requires a 400V-class three-phase supply. Without a suitable three-phase outlet, it cannot deliver 22kW.
### What about 11kW portable chargers?
11kW is often a three-phase 16A-per-phase option. It is a middle choice for buyers who may have three-phase power but do not need the full 22kW rate, or whose vehicles top out at 11kW AC.
### How do I know which power level is right for my market?
Start with the most common vehicles in your market, the typical home electrical supply, and the local socket and connector standards. Then confirm the model, plug type, cable length and certificate documents with the supplier. YIYANG SHENDA’s official guidance is to confirm country, customer type, product, quantity, plug/interface, certification requirement and OEM request before quoting.
### Are certificates the same for 7kW and 22kW portable chargers?
Not necessarily. The portable charger/IC-CPD certificate documents commonly cover 6A–32A at 230V AC. The 11kW and 22kW portable models have separate model-specific documentation. Certificate suitability must be checked by model, certificate holder, target market and sales channel.