The global transition toward decentralized power grids, electric micro-mobility, and utility-scale energy storage systems (ESS) has altered the role of the OEM electrical components supplier. Today's procurement demands transcend basic parts manufacturing; they require deep code integration, smart hardware communication networks, and advanced thermal management safety systems. A modern Battery Management System (BMS) acts as the brain of energy arrays, ensuring functional safety, optimizing active balancing cycles, and delivering telemetry data via IoT architectures.
Industrial clients seeking components from suppliers require a comprehensive design philosophy that prioritizes durability, efficiency, and compliance. For instance, in applications ranging from commercial power tool packs to electric vehicles (EVs), thermal management and precision circuit topologies determine the operational life cycle of lithium cells. By choosing a partner equipped with deep design-in expertise and end-to-end automated manufacturing processes, global organizations mitigate the operational risks of system integration.
We configure complex PCB layout topologies featuring low internal resistance, high continuous current handling (up to 200A), and active balancing circuits. This ensures cell longevity and uniform power distribution across dense battery configurations.
Our BMS modules support robust industrial standards including CANbus, RS485, and integrated Bluetooth interfaces. Real-time data regarding cell voltage, temperature, and current are made accessible through proprietary cloud monitoring systems.
By using multi-stage NTC temperature sensors and precise low-power sleep modes, our products guard against thermal runaway, short circuits, and over-current events, protecting the structural integrity of your power cells.
We are Shenzhen Litongwei Electronic Technology Co., Ltd., established in 2005, a national high-tech enterprise specializing in the R&D and manufacturing of lithium-ion safety control systems. Our products are widely used in 3C digital devices, electric scooters, bicycles, motorcycles, tricycles, golf carts, AGVs, drones, and power tools. We provide intellectual property protection (patent collaboration to prevent infringement), industry-standard shared boards (cost reduction and efficiency improvement), full-process traceability (quality control), and remote maintenance (cloud platform support) to help you address technical, cost, and operational challenges. By choosing us, you'll receive top-tier products and services. Litongwei is committed to collaborating with you to build a brighter future together.
LITONGWEI has always adhered to the philosophy of "Technology as King, Efficient Service" in all aspects of production and operations. Our vision is to become a provider of intelligent green energy management solutions, embracing environmental sustainability. Start with LITONGWEI!
Our large-scale manufacturing facilities in Shenzhen and Dongguan provide scalable capacity to meet global demand for high-reliability electrical assemblies.
Manufacturing electronic assemblies, particularly complex BMS protection boards, requires a supply chain with both deep resources and rapid response capabilities. Our primary production facility in Shenzhen covers 13,000 square meters of high-tech infrastructure, complemented by our secondary base in Dongguan Huangjiang spanning 27,000 square meters. By integrating raw component sourcing, high-speed SMT assembly, and strict Quality Assurance (QA) in one region, we reduce cycle times and avoid shipping delays.
Equipped with 24 pick-and-place machines for high-speed assembly and 12 advanced PCBA production lines, our production capability remains highly flexible. This setup allows us to easily scale production from low-power 13S BMS units for small digital devices to large, heat-managed 20S 200A boards for heavy equipment. Complete control over our SMT and PCBA processes ensures that every electrical component is manufactured with minimal contact errors and high solder integrity.
Our manufacturing execution system (MES) provides full end-to-end component traceability. Every single chip, capacitor, and MOSFET is logged, tracked, and verified to prevent component mismatches and allow for precise quality audits.
We hold over 100 patents across BMS circuit designs, automated test programming, and mechanical housings. We work closely with our partners to provide patent collaboration and secure IP protection, preventing market infringement risks.
Every PCBA undergoes rigorous automatic testing, including online in-circuit testing, automated optical inspection (AOI), and dynamic load testing. This process ensures that BMS hardware runs reliably under various field conditions.
Our battery protection boards and power converters are designed to meet the technical demands of several specialized markets:
Our 10S 20A and 13S 30A BMS systems are built for two-wheeled electric bikes, cargo scooters, and tricycles. These systems use precise CANbus protocols to share battery charge state and temperature directly with the vehicle controls. This prevents power drop-offs and improves safety during heavy use.
Industrial AGVs need fast charging and high reliability. Our high-power 20S 200A BMS units handle heavy continuous discharge rates. They feature built-in heating components that allow batteries to charge safely in cold storage facilities without losing capacity.
For household and light commercial solar setups, our IP67-rated micro-inverters deliver 96.5% efficiency. These units are built to withstand extreme outdoor weather while providing stable, clean power back to the local grid.
A track record of technological innovation and quality milestones in safety control systems.
Technology-driven growth. In 2005, the company commenced R&D and manufacturing of digital Battery Management Systems (BMS). By 2006, it expanded into power battery management system development. ISO9001 certification was obtained in 2007, followed by ISO14001 certification in 2009.
Technological advancement. The company secured 8 utility model and design patents in 2011, while expanding its mobile power bank manufacturing operations. The Litongwei Technology Research Institute was established in 2012. It received the Del New Energy Quality Excellence Award in 2014 and earned the Gold Partner title from Gaogong Lithium Battery in 2015.
Digital transformation. The company upgraded its ISO 9001 and ISO14001 certifications in 2016, achieved IATF16949 certification in 2018, and implemented an MES system for warehouse automation. It was awarded the Guangdong Battery Industry Association Innovation Award in 2019 and recognized as a leading brand in lithium battery protection board technology for two-wheeled vehicles in 2020.
Smart Manufacturing+. Litongwei Electronics continues to innovate, deepening its technological expertise while embracing IoT and Industry 4.0. Through its Smart Manufacturing+ strategy, the company drives industrial transformation and upgrading.
Procuring electronic components for overseas markets involves navigating complex regulatory requirements. B2B buyers must ensure products comply with local environmental and functional safety rules, such as RoHS, REACH, CE, FCC, and UL standards. A reliable supplier must offer both advanced technical performance and full regulatory compliance.
Litongwei builds compliance directly into its engineering workflow. Operating under certified IATF 16949 automotive-grade management systems, our design, material sourcing, and assembly processes meet strict reliability standards. For energy storage systems, our protection circuits feature redundant safety systems, over-temperature protection, and real-time fault tracking, ensuring compliance with UL 1973 and IEC 62619 standards.
We source raw components in strict accordance with RoHS and REACH regulations. This guarantees that all solder, coatings, and integrated circuits are free from hazardous chemicals, making them safe for international import.
By conforming to IATF 16949 standards, we apply Failure Mode and Effects Analysis (FMEA) to minimize failure risks, delivering stable, high-performance electronics for critical applications.
Litongwei's partners include Huawei, Lenovo, Desay, Guoguang, Sunwoda, Eve Energy, Guoxuan High-tech, and other industry brand clients who have collaborated for many years.
Litongwei Electronic
