Explore our foundational safety control systems engineered for high-availability backup systems and smart portable generators.
As a national high-tech enterprise specializing in the R&D and manufacturing of lithium-ion safety control systems, Litongwei has spent nearly two decades positioning itself at the leading edge of custom energy solutions. Our engineered protection architecture serves as the safety backbone for 3C digital systems, micro-mobility applications (including electric scooters, bicycles, and tricycles), golf carts, Autonomous Guided Vehicles (AGVs), unmanned aerial vehicles (UAVs), and heavy-duty power tools.
By leveraging robust patent-protected intellectual properties, industry-standard shared boards, comprehensive MES-driven traceability, and smart cloud-based diagnostic platforms, Litongwei helps global enterprises mitigate technical liabilities and operational overhead. We deliver premium, reliable control boards customized to survive the most demanding industrial emergency configurations.
"Technology as King, Efficient Service: We forge robust safety mechanisms for the storage systems that power our global transition to sustainability."
A technical examination of safety systems safeguarding mission-critical backup power infrastructure.
Unequal cell degradation is the primary failure mode of multi-cell emergency packs. Litongwei's proprietary hardware features integrated balancing topologies (up to 120A/200A architectures) that actively level charge differences. This increases overall capacity retention and halts early system degradation.
Thermal runaway prevention is critical for indoor and server-room backup sources. Incorporating multiple Negative Temperature Coefficient (NTC) thermistors, our BMS units continuously log surface and junction heat profiles. Protection loops engage within milliseconds to shut down circuits before critical thresholds are breached.
Our BMS modules support versatile communication channels including CAN bus, RS485, and low-energy Bluetooth. These telemetry standards permit deep integration into microgrid controllers, cloud monitoring applications, and simple mobile configurations for real-time SoC, SoH, and event logs.
How Litongwei safety management systems support custom backup and emergency configurations worldwide.
Remote cells require absolute power continuity. Litongwei designs multi-series, high-capacity BMS (such as our 20S 100A/120A configurations) featuring robust anti-reverse charging and automatic temperature control (Bluetooth/heating configurations). These boards allow telecom cabinets to survive extreme sub-zero winters while keeping crucial networks live.
Industrial logistics platforms demand quick-charging, high-current lifespans. Our safety control boards manage extreme discharge rates, protect cells during sudden regenerative braking loads, and facilitate zero-downtime hot-swaps. This ensures warehouse fleets remain functional 24/7 without battery failure risks.
Supplying bidirectional 500W-2kW portable generators demands flawless synchronization between the battery pack and inverter electronics. Our integrated protective boards ensure that PV inputs, bidirectional conversion loops, and low-power standby modes interact safely, preventing harmonic distortion or component breakdown.
Our manufacturing complex represents the integration of high-speed automation and rigorous quality control. Operating across two primary hubs—over 13,000 square meters of independent manufacturing footprint in Shenzhen, supplemented by a 27,000 square meter industrial facility in Dongguan Huangjiang—Litongwei maintains vertical control over the production timeline.
Our facilities are equipped with 24 high-speed pick-and-place (SMT) machines and 12 dedicated PCBA processing lines. This infrastructure outputs over 15 million safety control units monthly. To ensure zero-defect distribution, our processes are integrated with a modern Manufacturing Execution System (MES), allowing full-process tracking from raw component sourcing to final functional burn-in tests.
Pioneering the next generation of energy management safety systems.
The transition toward high-density chemistries, such as Solid-State batteries and next-gen LiFePO4 structures, demands safety architectures capable of monitoring complex internal states. Litongwei's engineering team is developing future-proof algorithms designed to integrate directly with these evolving platforms. Our forward-looking development focus centers on three major vectors:
Moving beyond static voltage curves, our upcoming BMS firmware utilizes machine learning algorithms at the edge. By analyzing dynamic resistance deviations, the controller predicts cell failures up to 50 operating hours before they occur, eliminating unexpected system downtime.
To satisfy the requirements of utility-scale energy storage and long-range logistics, Litongwei is scaling protection topologies to support up to 400V–800V bus voltages, managing string series configurations with advanced galvanic isolation.
Our software division is expanding cloud connectivity protocols, enabling fleet managers to monitor cell-level metrics across thousands of active systems from a unified control dashboard, facilitating predictive maintenance updates.
Meeting international quality and performance standards for demanding regional markets.
Litongwei supports international trade operations through strict adherence to global safety and quality standards. Our manufacturing workflow complies with major international frameworks, ensuring your customized emergency power supplies pass domestic import approvals and operate within target limits.
Automotive-grade quality management workflow assuring deep material tracking, structured verification, and assembly testing.
Certified quality and environmental management systems since 2007, ensuring optimized resource usage and stable manufacturing.
Product lines conform to European and North American electrical safety, environmental hazardous substances limits, and electromagnetic standards.
Extensive portfolio of over 100 patents, offering clients design protection and intellectual property protection.
A history of innovation and growth in safety control technologies.
Technology-driven growth. Commenced R&D and manufacturing of digital Battery Management Systems (BMS) in 2005. Expanded into power battery management system development in 2006. Obtained ISO9001 certification in 2007, followed by ISO14001 in 2009.
Technological advancement. Secured 8 utility model and design patents in 2011, while expanding mobile power operations. Established the Litongwei Technology Research Institute in 2012. Earned the Del New Energy Quality Excellence Award in 2014 and Gold Partner title from Gaogong Lithium Battery in 2015.
Digital transformation. Upgraded ISO 9001 and ISO14001 certifications in 2016. Achieved IATF16949 certification in 2018, and implemented an MES system for warehouse automation. Awarded the Guangdong Battery Industry Association Innovation Award in 2019 and recognized as a leading brand in lithium battery protection board technology in 2020.
Smart Manufacturing+. Litongwei Electronics continues to innovate, deepening technical expertise while embracing IoT and Industry 4.0. Through its Smart Manufacturing+ strategy, the company drives industrial transformation and upgrading.
Litongwei has maintained long-term collaborations with some of the world's leading brands in consumer electronics and green energy systems.
Expert insights regarding procurement, customization, and engineering integration.
Litongwei offers customization of all critical thresholds, including over-charge protection voltage, over-discharge protection voltage, over-current thresholds, temperature recovery limits, NTC configurations, balancing current limits, and communication protocol registers. We can also modify physical form factors, connector placements, and display board connections (like simple wired or sightseeing vehicle displays) to fit your mechanical enclosures.
For operations in extremely cold environments, charging below 0°C can cause lithium plating and permanent cell degradation. Our heating-enabled BMS controls integrated resistive heating pads. When temperature sensors register below freezing and a charge current is present, the board routes energy to the heating element first, raising internal pack temperatures to safe charging limits before permitting input current to cross the cells. Bluetooth connectivity lets operators track this process in real-time.
Our high-current boards include multi-stage protection pathways. These feature hardware-level short circuit protection (activated within microseconds), redundant software over-current tracking, secondary thermal fuses, and MOS temperature tracking. Balancing networks ensure voltage uniformity across series-parallel clusters, preventing individual cell over-stress.
Every board we produce is laser-engraved with a unique serialized identification code. At each production step (SMT, wave soldering, initial testing, functional testing, and packing), the serial number is scanned, logging test results, component lot numbers, and operator details directly into our database. This enables tracking throughout the supply chain and speeds up resolution in the rare event of field issues.
Yes. Litongwei works closely with global partners under clear joint intellectual property agreements. With over 100 patents in safety controls and hardware testing systems, we provide robust IP indemnity, ensuring that customized circuit configurations designed for your proprietary products are legally protected.
Complete your custom energy installation with these auxiliary and higher-current control boards.
Litongwei Electronic