| 1 | AC charging power | Common residential options include about 7 kW single-phase and 11 kW or 22 kW three-phase, where the vehicle and electrical supply support them. | Rated current, phase configuration, adjustable current settings, and compatibility with the vehicle’s onboard AC charger. |
| 2 | Supply voltage and installation | Residential AC equipment is commonly designed for approximately 220–240 V single-phase or 380–415 V three-phase supplies, depending on the market. | Permitted voltage range, circuit and cable requirements, earthing requirements, and whether a qualified electrician is required for installation. |
| 3 | Connector and regional compatibility | For mainland China, check compatibility with the applicable GB/T AC charging interface; other markets may use different connector standards, such as Type 2. | Connector standard, cable length, cable or socket configuration, and compatibility with the specific vehicle and destination market. |
| 4 | Electrical protection | Protection design may include overcurrent, overvoltage, undervoltage, overtemperature, and residual-current protection. Requirements depend on the product design and local electrical rules. | Protection functions, residual-current device type, DC fault-current detection, reset behavior, and required upstream protective devices. |
| 5 | Enclosure and outdoor suitability | Outdoor models should state an ingress-protection rating, such as IP54 or higher, where appropriate. The rating alone does not guarantee suitability for every exposure or installation location. | IP rating, operating-temperature range, UV and corrosion resistance, mounting conditions, and any restrictions on direct exposure to weather. |
| 6 | Smart features and connectivity | Wi-Fi, Bluetooth, Ethernet, or cellular connectivity may be offered; availability varies by model. OCPP support is relevant when integration with a compatible charging-management platform is needed. | Supported communication protocols and versions, app availability, offline charging behavior, data handling, and any ongoing service or subscription fees. |
| 7 | Energy management | Some residential chargers support scheduled charging or dynamic load management, which can help coordinate charging with household demand when correctly installed and configured. | Whether an external meter or sensor is required, supported solar-surplus functions, load-balancing limits, and compatibility with the home electrical system. |
| 8 | Standards and market approvals | Charging equipment should be assessed against the standards and approvals applicable in its intended market. IEC 61851-1 and GB/T 18487.1 are examples of relevant conductive-charging standards. | Model-specific test reports, certificates, standard editions, and confirmation that approvals apply to the exact product and destination market. |
| 9 | Warranty and after-sales support | Warranty length and coverage are supplier-specific; there is no single duration that applies to every residential charger. | Written warranty term, covered components, labor and shipping exclusions, local service availability, spare-parts policy, and response process. |
| 10 | Total installed cost | The charger purchase price is only one part of the cost; installation, electrical upgrades, accessories, connectivity, and ongoing services may add to the total. | An itemized quotation covering equipment, installation assumptions, optional hardware, taxes, software fees, and any costs for future service. |