As the global electric vehicle (EV) market shifts from early adoption to mass-market dominance, the demand for Wholesale DC Charging at Home has surged. Traditionally, residential charging was limited to AC Wallboxes (7kW-22kW), which could take 6-12 hours for a full charge. However, with the advent of long-range EVs and 800V architectures, "DC-at-Home" solutions—ranging from 7kW to 40kW—are redefining convenience by bypassing the vehicle's onboard charger (OBC) and delivering power directly to the battery.
TONGXING NEW ENERGY TECHNOLOGY CO., LTD., a National High-Tech Enterprise with 23 years of energy sector expertise, is at the forefront of this transition. Our R&D focuses on the "Information Gain" of charging: not just delivering power, but managing it through AI-driven load balancing and grid-friendly synchronization.
China accounts for over 70% of the global EV battery and component supply chain. Our factory leverages this proximity to source military-grade power modules and semiconductor components at a 20-30% lower cost than European or North American competitors.
With 140+ certified engineers, Tongxing provides full-stack development—from circuit topology optimization to OCPP 2.0J protocol implementation. We reduce the "Time to Market" for OEM/ODM projects by 40%.
Every unit undergoes 18 automated inspection points, including EMI/EMC testing and extreme temperature cycles (-35°C to 75°C), ensuring compliance with CE, TUV, and UL standards.
DC chargers at home are no longer one-way conduits. Bi-directional DC technology allows the EV to act as a 60-100kWh battery for the house during outages, creating a resilient local energy micro-grid.
Our smart chargers communicate with national grid operators via OCPP, automatically charging during off-peak hours when renewable energy (wind/solar) is abundant and electricity costs are lowest.
The rise of 22kW and 30kW DC residential chargers allows users to add 150km of range in just 30-45 minutes, a game-changer for high-mileage users and fleet managers who bring vehicles home.
| Parameter | Traditional AC (Home) | Modern DC (Home) | Tongxing Advantage |
|---|---|---|---|
| Power Output | 3.5kW - 11kW | 7kW - 40kW | Modular Expandability |
| Charging Speed (100km) | 3 - 5 Hours | 30 - 60 Minutes | Direct-to-Battery Efficiency |
| Grid Interaction | Passive | Active (OCPP 2.0) | V2G/V2H Ready |
| Installation | Simple Wallmount | Requires DC Controller | All-in-One Compact Design |
Smart DC hubs that allow multiple users to share a high-speed connection, managed by RFID or APP payment systems to reduce infrastructure costs for property developers.
Integrating PV arrays with 15kWh energy storage and DC charging to provide 100% green energy independence, even in areas with unstable grid connectivity.
Rapid overnight replenishment for light commercial vehicles (LCVs), ensuring 100% uptime for delivery services with simplified maintenance protocols.
For global enterprises, procuring Wholesale DC Charging at Home equipment requires a partner who understands localized regulatory frameworks. At Tongxing, we provide:
1. Input Voltage: 230V Single-phase vs 400V Three-phase compatibility.
2. Connectivity: Ethernet, Wi-Fi, 4G, and RS485 for BMS integration.
3. Protection: Type B RCD, Over-voltage, Under-voltage, and Ground Fault detection.
4. Software: OCPP 1.6J/2.0 interoperability with your billing platform.
Tongxing
