Premium OEM/ODM hardware portfolio featuring smart BMS protection boards, micro inverters, and high-efficiency portable power stations engineered for reliability.
Established in 2005, Shenzhen Litongwei Electronic Technology Co., Ltd. is a national high-tech enterprise focusing on the research, development, engineering, and digital manufacturing of state-of-the-art Lithium-ion Safety Control Systems (BMS). Decades of relentless innovation in battery chemistry and active circuit protection have enabled us to deliver highly specialized BMS options across diverse industries.
Our comprehensive safety solutions serve demanding sectors, including 3C digital gadgets, electric scooters, e-bikes, electric motorcycles, golf carts, AGVs, unmanned aerial vehicles (drones), and heavy-duty power tools. By maintaining strict design and manufacturing integration, we protect your hardware investment while mitigating operational and thermal hazards.
Corporate Core Strengths: Intellectual Property (IP) Protection & Patent Collaboration, Standardized Industry Shared Boards for massive cost-efficiency, Full-Process Traceability (MES), and Remote Cloud Platform Diagnosis.
Figure 1: State-of-the-art laboratory and digital automated manufacturing floors at Litongwei
A comprehensive view of active protection mechanisms, physical topologies, and real-time monitoring algorithms designed to secure modern energy cells.
Utilizes intelligent passive shunting and active charge-redistribution topologies to maintain cell voltage variance within ±5mV. This increases the total pack cycle-life by up to 20% and prevents single-cell overcharging.
Integrates multi-channel Negative Temperature Coefficient (NTC) thermistors mapped to high-stress junction points. The system implements auto-throttling and immediate cut-offs during thermal anomalies, preventing thermal runaway.
Includes hardware-level short circuit detection and dual-stage overcurrent thresholds. With ultra-fast response times (under 10 microseconds), the circuit disconnects the load before transient currents damage sensitive cell matrices.
Equipped with industry-standard communication buses including CAN, RS485, and Bluetooth. Allows seamless system integration with host controllers and real-time state telemetry transfer via cloud applications.
Controls power flow in bidirectional inverter topologies, managing the delicate transition between grid charging and battery discharge. Optimizes overall power path efficiency up to 96.5%.
Features optocoupler isolation and galvanic signal decoupling to isolate high-voltage traction packs from low-voltage microcontrollers. This protects user interfaces from high-voltage system faults.
Units Produced Monthly
Total Manufacturing Space
Annual Sales Reinvested in R&D
Patents in BMS Industry
Figure 2: Automatic inspection stations verifying PCBA trace integrity
Our manufacturing strategy leverages advanced Industry 4.0 techniques to secure both quantity and quality. The Shenzhen industrial zone features more than 13,000 square meters of dedicated research and production space, while our Dongguan Huangjiang campus expands our footprint by 27,000 square meters. These facilities enable high-volume electronic system manufacturing.
Equipped with 24 high-speed pick-and-place (SMT) machines and 12 fully automated PCBA lines, Litongwei sustains a monthly manufacturing output exceeding 15 million protection units. This massive footprint guarantees immediate component availability, short lead times, and economies of scale for B2B buyers worldwide.
We deploy a modern Manufacturing Execution System (MES) to enforce full traceabilty across our production process. Every product is stamped with a unique machine-readable serial number linking back to specific SMT lines, component batches, reflow oven parameters, and automatic optical inspection (AOI) data, simplifying quality control and field troubleshooting.
Standard design envelopes for custom integrations. All parameters can be optimized for specific application requirements.
| Parameter Profile | Standard Range Support | Advanced Custom Configuration | Primary Fields of Application |
|---|---|---|---|
| Series Cell Configuration | 3S to 24S (Li-ion, LiFePO4, LTO) | Up to 96S (High Voltage Stackable) | E-bikes, AGVs, Industrial Storage Systems |
| Continuous Discharge Current | 15A to 100A | 200A to 500A (Active Busbar cooling) | Electric Scooters, Heavy Power Tools, Off-Grid Inverters |
| Overcurrent Protection Threshold | 30A to 250A (Configurable delay) | Up to 1000A transient peak sensing | Traction motor controllers, Bidirectional Power Banks |
| Voltage Sensing Accuracy | ±10mV per cell | ±2mV (Precision Grade ICs) | Medical systems, high-accuracy micro-grids |
| Interface Diagnostics | UART / I2C | CAN 2.0B, RS485, Bluetooth BLE, IoT Cloud | Balcony Solar Micro-Inverters, Automated AGVs |
| IP Water/Dust Protection | IP30 (Open Board / Coated) | IP67 Sealed Aluminium Enclosure | All-weather micro-inverters, Marine / Outdoor Battery Packs |
Providing high-reliability, certified power solutions tailored to complex regulatory environments and severe operational requirements.
Modern two-wheelers, three-wheelers, and golf carts operate under harsh vibrations and thermal environments. Litongwei provides custom smart BMS with high vibration resistance and integrated cell-balancing circuits. Our protection boards help clients secure global certifications (such as UL2271 and EN15194) and comply with regulatory requirements.
Unmanned vehicles and warehouse automation require high discharge currents and rapid charging profiles. Our battery protection boards support high charge rates and integrate with internal vehicle microcontrollers via CAN bus. This gives operators real-time access to accurate State-of-Charge (SoC) and State-of-Health (SoH) metrics.
Residential balcony PV setups require high efficiency and weather-proof reliability. Our custom micro-inverters feature a 96.5% conversion efficiency and IP67 enclosures. Built to withstand environmental conditions, they support safe, local grid-feed controls, serving the rapidly growing European residential solar market.
Regulatory Compliance and Global Market Access: Litongwei's manufacturing systems operate under ISO9001, ISO14001, and IATF16949 standards, ensuring compliance with CE, RoHS, FCC, and UN38.3 requirements. We protect client designs with intellectual property security and patent-infringement clearance.
Our journey from a local R&D lab to a global leader in battery management technologies.
In 2005, the company launched R&D for digital Battery Management Systems (BMS). It expanded into power battery management system development in 2006. The facility earned ISO9001 certification in 2007 and ISO14001 certification in 2009.
By 2011, Litongwei secured 8 utility model and design patents while building mobile power bank assembly operations. In 2012, we established the Litongwei Technology Research Institute. The company received the Del New Energy Quality Excellence Award in 2014 and the Gold Partner title from Gaogong Lithium Battery in 2015.
Upgraded our quality standards in 2016. In 2018, we earned the IATF16949 certification and launched our MES database for warehouse automation. The company received the Guangdong Battery Industry Association Innovation Award in 2019 and was named a leading brand in lithium battery protection boards for two-wheeled vehicles in 2020.
Litongwei continues to innovate, expanding our technology with IoT integrations. Through our Smart Manufacturing+ strategy, we provide global OEM clients with scalable, secure, and digitally tracked production capabilities.
We work closely with global tech brands to supply reliable battery management systems.
Answers to common technical, commercial, and regulatory questions from enterprise procurement teams.
Our safety boards provide protection against overcharging, over-discharging, overcurrent, and short circuits. Many configurations include thermal management (via NTC thermistors), cell balance shunts, reverse polarity detection, and diagnostic communications via CAN, RS485, and Bluetooth.
We work closely with customers to register custom circuit topologies and designs. Our team helps clear patents in export destinations like North America and Europe, protecting your custom designs and market access.
Yes. Our standardized "shared boards" use pre-qualified circuits and components. Forgoing a full custom hardware design helps reduce engineering times and component costs while speeding up production schedules.
With our 24 SMT lines and 12 PCBA production lines producing up to 15 million units monthly, we can ship high-volume orders in 3 to 4 weeks, depending on component availability and customization requirements.
Yes. We offer fully documented testing processes and share data to support CE, UL, FCC, and UN38.3 certifications, helping you meet regional regulatory standards.
Yes. Our smart communication modules allow connection to cloud telemetry systems. This enables remote battery state tracking, over-the-air firmware updates, and predictive maintenance troubleshooting.
Premium OEM/ODM hardware portfolio featuring smart BMS protection boards, micro inverters, and high-efficiency portable power stations engineered for reliability.
Litongwei Electronic
