Meta description: Portable or wallbox? Compare AC EV charger types, power levels, standards, and use cases to pick the right product for your customers and your market.
Two Products, Two Very Different Jobs
When buyers think about charging an electric vehicle at home or on the road, they usually picture one thing: a cable and a plug. But behind that simple image are two distinct product categories — portable chargers and wallbox chargers — and choosing the wrong one for a market is one of the most common mistakes in EV charging.
At Shenzhen Yunrui Intelligent Equipment, we manufacture both. Here is a practical guide to the differences, and to how to match the product to the use case.
Portable AC EV Chargers
Portable chargers are designed to travel with the vehicle. They plug into an existing outlet or socket and require no permanent installation — the driver keeps them in the trunk and can charge almost anywhere.
Typical specifications:
- Power output: 3.5 kW (16A) to 22 kW (32A)
- Input: single-phase (L+N+PE) or three-phase (L1+L2+L3+N+PE)
- Connectors: GB/T, IEC Type 2 (EU), SAE J1772 (US), and NACS (Tesla)
- IP54 protection for indoor and outdoor use
- 5 m cable, adjustable to customer requirements
Where portables win:
- Drivers who rent, move often, or lack a dedicated parking spot
- Fleet vehicles that rotate between depots
- Roadside assistance and emergency charging
- Markets where installation costs are high or permitting is slow
Because a portable charger is often the first charging product a customer ever buys, it also carries the brand. A well-built portable unit earns loyalty; a flimsy one destroys it.
Wallbox AC EV Chargers
Wallbox (wall-mounted) chargers are installed permanently — on a garage wall, a commercial building, or a parking structure. They are faster to use day to day and can be networked for management and billing.
Typical specifications:
- Power output: 7 kW (32A) single-phase up to 11 kW / 22 kW (16A/32A) three-phase
- Display: 4.3-inch screen
- Connectivity: Wi-Fi/Bluetooth with app support
- Protection rating: IP54/IP55
- Connector support: GB/T, IEC Type 2 (EU), SAE J1772, and NACS
Where wallboxes win:
- Homeowners with a dedicated parking space
- Apartment and office buildings, hotels, and retail locations
- Commercial fleets and destination charging
- Anywhere load balancing, metering, or scheduling adds value
The ability to display status and communicate over Wi-Fi/Bluetooth turns a wallbox from a simple charger into a node in a larger charging network — which is exactly what commercial buyers need.
The Power Question: Single-Phase or Three-Phase?
One of the biggest decision points is electrical service. Single-phase service (common in residential North America) caps output at around 7 kW. Three-phase service (common in Europe and industrial sites) unlocks 11 kW and 22 kW.
This is why a charger portfolio must span both. A product built only for three-phase is useless in a single-phase market — and vice versa. Yunrui chargers are available across the full range:
The Standard Question: One Market, Four Systems
Charging standards vary by region, and the connector on the vehicle determines what the charger must offer:
- GB/T
- IEC Type 2 / EN 61851
- SAE J1772
- NACS
A modern charging supplier must be fluent in all four. Our portable and wallbox lines are engineered and certified across GB/T, IEC/EN, SAE, and NACS, so a single manufacturing partner can equip multiple regions.
Safety Is Not Optional
Whether portable or wallbox, an AC charger sits between a live electrical supply and a multi-tonne vehicle. Protection must be built in, not added later. Every Yunrui charger includes:
- Over-voltage, under-voltage, and over-current protection
- Grounding and leakage protection (RCD, AC 30 mA + DC 6 mA, trip time 16–30 ms)
- Lightning protection and flame-retardant construction
- Intelligent temperature control
- ≥98% efficiency and ≥10 MΩ insulation resistance
- Testing across high, low, and normal temperatures for 1,500+ cycles
How to Choose
Ask three questions:
- Will the charger move with the vehicle?
- What electrical service is available — single-phase or three-phase?
- Which standard does the vehicle use — GB/T, Type 2, J1772, or NACS?
Answer those, and the right product picks itself. If you'd like help matching a line to a specific market, our team can advise on ODM and OEM options tailored to your region.