Global OEM/ODM Factory

Wholesale EV Charger Box Manufacturers & Factories

Pioneering high-durability Level 2 & Level 3 EV charger boxes, integrated solar-storage-charging infrastructure, and custom OCPP solutions for international C&I deployments.

Industry Leadership

TONGXING NEW ENERGY TECHNOLOGY CO., LTD.

A National High-Tech Enterprise Sourcing Smart Charging and Energy Architectures Worldwide.

Backed by over 23 years of specialized expertise in power electronics, Tongxing has established itself as an authoritative force in the electric vehicle supply equipment (EVSE) sector. We bridge the gap between heavy industrial power transmission and modular grid-edge endpoints, manufacturing a broad spectrum of units ranging from compact 3.5kW domestic chargers to enterprise-grade 960kW ultra-fast DC liquid-cooled charging matrices.

Unlike standard OEM assembly plants, Tongxing is vertically integrated. We develop custom hardware topologies, write advanced software interfaces complying with the latest OCPP standardizations, and build complete ecosystem designs including Photovoltaic (PV) structures and high-density Battery Energy Storage Systems (BESS).

Tongxing Factory Frontage and R&D Core Facility
Advanced Infrastructure

Precision R&D & Automated Manufacturing Capabilities

How we ensure continuous reliability and zero-defect deployments for Tier-1 automotive and municipal supply chains.

72,000m²
Production Base
Housing 18 high-speed automated assembly lines and IoT-enabled calibration beds, pushing productivity to a 95% automated efficiency index.
200+
Certified Experts
A dedicated engineering force comprising 140+ certified technicians, 20+ power system specialists, and a 40-member internal QA audit team.
Full-Stack
Firmware Control
Proprietary control over charge logic loops, thermal modulation algorithms, grid synchronization patterns, and high-frequency noise filters.
12+
Utility Patents
Patented designs covering high-efficiency thermal cooling paths, lightning-transient mitigation systems, and dual-core firmware layers.
Engineering Resilience

Core Advantages: Built for Extremes & Smart Grids

Discover the physical and digital architecture of Tongxing chargers, designed for long life in complex, demanding settings.

Extreme Climate Protection

Constructed using heavy-duty polycarbonate and military-grade sealing gaskets, our systems are IP55/IP65 ingress certified, designed to run smoothly at temperatures from -35°C to 75°C.

Dynamic Installation Architecture

Easily adaptable to wall-mount plates, standalone steel pedestals, or portable formats. Tailored for residential complexes, logistics parks, public municipal spaces, and mining yards.

Smart Grid Interconnection

Equipped with OCPP 1.6J and OCPP 2.0.1 compatibility. Enables automated billing integration, dynamic load management, solar-prioritized power allocation, and remote over-the-air firmware updates.

Future Integration

Integrated Photovoltaic-Energy Storage-EV Charging Infrastructure

Maximize regional grid capacity by bridging clean power generation and storage directly to vehicle dispensers.

Solar EV Charging Diagram with Battery Storage

The Green Transport Infrastructure Blueprint

Traditional electric vehicle charging relies solely on municipal electrical grids, increasing peak loads and driving up carbon footprints. Tongxing's integrated PV-ESS-EV solution helps build a sustainable microgrid system.

  • Solar Direct Utilization: Standard configurations capture rooftop or parking canopy solar power to satisfy 30% to 50% of the station's daily load, cutting grid energy costs significantly.
  • Peak Shaving & Load Buffering: Storing power in our high-density LiFePO4 battery modules during low-rate night windows and discharging during high-rate peak periods helps prevent grid overloads.
  • High Power Delivery: Provides 120kW to 960kW high-speed DC currents, capable of supplying a 200km range boost in just 10 minutes of active charging.
Performance Metrics Traditional Grid Charging Tongxing Integrated Solar-Storage-EV Solution Operational Sourcing Advantage
PV Self-Consumption Efficiency Unavailable (0%) 85% - 92% Ensures high utilization of generated solar energy
Levelized Electricity Sourcing Cost 0.85 USD / kWh (Average grid rate) 0.62 USD / kWh (Blended index) Lowers ongoing operational costs by 27%
Net Carbon Emission Profile Depends on regional grid supply 40% - 60% standard reduction Supports ISO 14064 compliance and ESG certifications
Grid Expansion Demand High (Requires new substation upgrades) Minimal (Peak shaving functions as a buffer) Lowers initial site infrastructure costs
Commercial Scale

Industrial & Commercial Multi-Layer Energy Architectures

Optimize energy flows across manufacturing complexes, warehouses, corporate offices, and central logistics terminals.

Tongxing's C&I energy architecture coordinates power across three distinct, integrated layers to ensure highly efficient operations:

1. Generation Layer: Distributed rooftop photovoltaic installations (50kW to 500kW) handle a substantial portion of standard daytime facilities usage, helping qualify sites for green building status.

2. Storage Layer: Modular, scalable battery energy systems (100kWh to 10MWh) provide reliable backup power for up to 72 hours, protecting critical industrial equipment from unexpected power disruptions.

3. Application Layer: Intelligently distributes clean energy between building infrastructure, assembly lines, employee charging docks, and logistics vehicle fleets to maximize cost savings.

Commercial Integrated Energy Storage Installation
Versatile Deployment

Flexible Operational Modes for Home & Off-Grid Environments

From private garages to remote off-grid settings, customize charging modes to balance economic and power stability needs.

1. Economic Optimization Mode

Automatically schedules charging cycles during low-rate utility periods, drawing from battery reserves during peak times to reduce utility bills.

2. Zero-Carbon Renewable Mode

Restricts power flow to local solar sources only, eliminating grid draw to guarantee a 100% emission-free charging process.

3. Emergency Backup Mode

Instantly transitions to backup battery power during blackouts, keeping safety lighting, security systems, and critical home utilities running for up to 72 hours.

Residential EV Charging Box Installation Showcase
Strategic Sourcing

China Sourcing Advantages: Efficiency, Scale & Resilience

Why sourcing your EV charging boxes from Tongxing ensures stable production, competitive costs, and reliable delivery.

The Guangdong Supply Chain Advantage

Our manufacturing base in China's top electronic technology hub gives us direct access to high-grade components. This integration allows us to design, test, and ship products faster than international competitors.

  • Reliable Component Sourcing: Close proximity to semiconductor foundries, copper fabricators, and plastic suppliers keeps our production lines running steadily without material delays.
  • Rapid Customization (OEM/ODM): We quickly turn concepts into physical prototypes, moving from design validation to initial batch runs in as little as 4 to 6 weeks.
  • Certified Compliance: Our products are certified under major standards, including CE, UL, IEC, TUV, and RoHS, ensuring smooth customs clearance and compliance in North American, European, and APAC markets.
Project Stage Industry Standard Tongxing Performance
Response Response Time ≤ 50ms ≤ 10ms
Cycle Durability (80% DOD) ≤ 3,000 cycles ≥ 6,000 cycles
System Conversion Efficiency ≤ 93% ≥ 96%
Power Scale Capability Fixed Configurations Custom & Modular formats (50kW to 10MW)
Innovation Path

Technology Roadmap & Future Outlook

Stay ahead of market shifts with our upcoming EV charging technology developments.

Next-Gen Silicon Carbide (SiC) Power Modules

We are integrating Silicon Carbide MOSFET technology into our DC fast charging lines. This transition reduces thermal generation, increases overall charging efficiency to 98%, and shrinks the physical footprint of the charging box.

Vehicle-to-Grid (V2G) Bi-Directional Charging

Our upcoming V2G charging boxes will allow electric vehicles to feed energy back into the local grid. This turn fleets into distributed energy storage systems, generating potential revenue for operators during peak demand periods.

AI-Driven Load Distribution Platforms

Our proprietary management software dynamically allocates power across active dispensers. By routing energy to the vehicles that need it most, we improve multi-vehicle charging speeds by up to 25% without overloading local grid connections.

Frequently Asked Questions

Deep Industry Sourcing Insights & Support FAQ

Clear, direct technical answers to assist grid planners, engineering consultants, and commercial procurement managers.

What custom parameters are supported under Tongxing's OEM/ODM options?
Our manufacturing processes allow for deep customization. We modify physical features, including custom colors, logos, and cord lengths. Under the outer casing, clients can select specific internal power configurations: AC output values from 3.5kW to 22kW, or high-power DC systems from 22kW to 720kW+. We support major plug configurations, including Type 1 (SAE J1772), Type 2 (IEC 62196-2), and GB/T standards.
How do your charging systems interface with commercial management platforms?
All Tongxing commercial chargers use the open-source OCPP standard. They support OCPP 1.6J out of the box and can be configured with OCPP 2.0.1. Connecting via WebSocket, the hardware interfaces with standard cloud billing, remote diagnostics, and energy tracking networks. This setup makes it easy to integrate our hardware with your existing management platform.
What hardware protections are built in to ensure safety under extreme conditions?
Each charging box features multi-layer electrical safety systems. Protection paths include overvoltage protection, undervoltage protection, surge suppression (Class III), overcurrent limiting, smart earth-leakage monitoring (supporting Type B RCD requirements), and over-temperature safety cutoffs. Standard casings are manufactured using premium polycarbonate materials rated for UL 94 V-0 flame-retardant performance.
What is the standard production lead time and shipment cycle for custom bulk orders?
Standard OEM production batches are typically manufactured within 3 to 4 weeks from technical sign-off. Bulk order production times can vary between 20 to 35 days, depending on active production schedules. We arrange container shipping through nearby major ports in Shenzhen and Guangzhou to ensure reliable global logistics.