Custom Solar Inverter Factories & Company

Pioneering Intelligent Energy Conversion & Smart Safety Management Systems Since 2005. Scalable Industrial Solutions for the Global Renewable Grid.

Primary Energy Control & Storage Units

Explore our premium bidirectional inverters and high-performance protection systems engineered for custom industrial applications.

Integrating Smart Control & Energy Conversion

The modern energy transition demands highly reliable and dynamically responsive hardware systems. At the nexus of this revolution are custom solar inverters and battery management topologies. Shenzhen Litongwei Electronic Technology Co., Ltd., founded in 2005, operates as a premier national high-tech enterprise at the forefront of this technological shift. We specialize in the research, development, and high-capacity manufacturing of high-reliability safety control systems, bridging the gap between raw photovoltaic inputs and stabilized utility grids.

Key Focus: Custom solar inverter systems require tightly coupled battery management protection systems (BMS) to handle intermittent solar loading, stabilize bidirectional energy flows, and maintain cell-level safety.

Our solutions cater directly to developers of 3C digital devices, electric scooters, bicycles, commercial and residential storage arrays, AGVs, drones, and heavy-duty power tools. By implementing intelligent hardware platforms and proprietary cloud interfaces, we mitigate energy loss and maximize localized generation efficiency.

Corporate Vision Litongwei

Unmatched Manufacturing Capacities & R&D Depth

Why Tier-1 global brands rely on our high-speed automated facility pipeline in South China.

Advanced PCBA Infrastructure

Operating a massive footprint of over 13,000 square meters of independent manufacturing space in Shenzhen, supplemented by a 27,000 square meter modern facility in Dongguan Huangjiang.

Aggressive R&D Investment

Continuous commitment to innovation, routing over 10% of gross annual sales directly back into our R&D divisions for five consecutive years. This drives rapid design-to-prototype cycles.

High Yield & Scaling

Equipped with 24 high-speed SMT pick-and-place lines and 12 fully automated PCBA assembly lines. We sustain a monthly output exceeding 15 million functional control units.

40,000+
Sqm Total Manufacturing Area
15M+
Monthly Units Production Capacity
100+
Patents & Intellectual Property Rights
Litongwei R&D Facility

Architectural Alignment: Inverters and BMS Protection

For custom solar inverter factories, a solar inverter is only as reliable as the battery protection interface behind it. When transitioning energy from high-voltage photovoltaic strings into chemistry arrays (such as LiFePO4), dynamic protection configurations are mandatory.

Our intelligent system design integrates critical features:

  • Bi-directional Inverter Systems: Stabilizing 3.2V cell configurations into standard high-output household voltage levels.
  • Thermal Coefficient Management (NTC): Real-time heat analysis across multiple critical points in high-load charging phases.
  • Bluetooth & Intelligent Bus Communication: Support for RS485, CAN, and custom serial telemetry for microinverters and localized displays.
  • Patented Safety Programs: Preventing intellectual property conflicts while securing robust over-voltage, under-voltage, and short-circuit protocols.

Industrial Solutions & Localized Use Cases

From low-power decentralized microinverters to commercial-scale peak shaving microgrids.

Residential All-Weather ESS

IP67 microinverters and Bluetooth-enabled smart protection boards ensure safe, efficient, decentralized solar integration under harsh climate conditions.

IoT Edge-Monitored Grids

Integrated serial interfaces and real-time cloud data logging allow municipal utility operators to manage state-of-health diagnostics remotely.

Commercial Peak Shaving

High-power custom protection assemblies (e.g. 20S 200A systems with dedicated smart displays) control high-amperage output safely.

Chronicles of Engineering Excellence

A history of technology-driven transformation, shifting from basic components to smart, clean-energy solutions.

2005 - 2010
Foundational Growth

Established operations with dedicated research in digital BMS and power management technologies. Earned ISO9001 and ISO14001 certifications to meet strict international standards.

2010 - 2015
Patented Innovations

Expanded product line to mobile power banks and built the Litongwei Technology Research Institute. Secured multiple patents and received industry awards for quality excellence.

2015 - 2020
Digital Integration

Upgraded facilities with IATF16949 automotive-grade quality system management and implemented MES tracking. Earned innovation recognition for electric vehicle applications.

2020 - Present
Smart Manufacturing & Global Grid Systems

Adopting IoT and Industry 4.0 standards. Developing smart micro-inverter designs and bidirectional power bank configurations for global commercial export.

Addressing Global Inverter Procurement Challenges

Procuring custom solar inverters and battery control systems involves strict requirements. Industrial buyers must look beyond pricing to assess several critical factors:

1. Anti-infringement Protections & IP Strategy

Custom electronics can pose legal challenges in global markets. Working with a supplier that holds over 100 industry patents ensures that custom-designed circuit pathways, program codes, and thermal designs are legally sound and protected against infringement claims.

2. Traceability Through MES (Manufacturing Execution Systems)

For systems handling hundreds of amps, tracking production components is key to long-term reliability. Our MES monitoring tracks every step of assembly—from SMT placement to final QA testing—ensuring complete traceability for each shipped unit.

3. Real-Time Diagnostics & Cloud Maintenance

Modern renewable installations are often located in remote areas. Integrating Bluetooth, Wi-Fi, or proprietary serial bus protocols enables technicians to monitor system health and perform updates without on-site service calls.

Enterprise Partner Ecosystem

LITONGWEI's trusted network of long-term technology and supply-chain partners.

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Technical Q&A: Inverter & BMS Integration

Insights from our engineering team on performance, reliability, and custom system design.

What is the efficiency benefit of the OEM LTWSmart Micro Inverter MINV500S?
The MINV500S microinverter achieves a peak efficiency of 96.5%. It is built with an IP67 rating for all-weather durability, enabling direct installation near PV panels to reduce transmission losses and optimize solar energy conversion.
How do NTC temperature sensors protect custom high-capacity battery systems?
NTC (Negative Temperature Coefficient) thermistors monitor temperature across cell clusters in real time. If temperatures cross safe limits, the protection board triggers a shutdown or limits charge rates to prevent thermal runaways.
What are the advantages of integrating Bluetooth into battery protection boards?
Integrated Bluetooth enables local status monitoring, parameter customization, and field troubleshooting without requiring physical access. Users can track voltage balances, state of charge (SoC), and thermal diagnostics via a mobile app.
How do shared protection boards help reduce system costs?
Shared boards use standardized component layouts and footprints. This streamlines manufacturing, simplifies sourcing, and lowers development costs for standard application configurations.
What compliance certifications do LITONGWEI facilities hold for international export?
Our facilities hold ISO9001 and ISO14001 certifications, and are certified under the IATF16949 automotive standard. This ensures our manufacturing processes meet the strict quality standards required for global commercial applications.