High-efficiency active balance BMS architectures and customized safety control platforms engineering for premium reliability.
Unlocking battery efficiency and long-term asset value with advanced active energy redistribution paradigms.
The global push for urban electrification relies on battery packs that endure intense thermal and cycle stresses. Our Active Balancer BMS guarantees structural cell matching, improving standard electric bike, scooter, and e-trike range by up to 15%. By shifting energy dynamically rather than converting excess voltage to heat, thermal buildup is reduced, preventing system wear.
Automated Guided Vehicles (AGVs) operating in 24/7 smart warehouses require high operational uptime and fast charging cycles. Traditional passive balance systems generate excess heat, limiting throughput. Our active balancing technologies distribute charge dynamically during high-amp charging phases, preventing premature cell degradation and reducing unexpected downtime.
Large-scale grid-tied ESS applications utilize large lithium-iron-phosphate (LFP) multi-cell packs. Capacity drift over time diminishes the efficiency of the entire battery string. Applying Litongwei's active balancer architectures balances the state of charge (SoC) across cells, extending storage system lifespan and improving investment returns for project developers.
Established in 2005, Litongwei is a national high-tech enterprise specializing in the R&D and manufacturing of lithium-ion safety control systems. We focus on providing premium safety control hardware and custom firmware for modern energy applications.
Our solutions are widely applied across consumer electronics, industrial vehicles, and localized smart grids. We offer full-process traceability (MES quality control), shared boards for cost reduction, intellectual property protection, and IoT-enabled cloud monitoring platforms.
Litongwei controls two primary production bases designed for high-efficiency throughput:
Over 13,000 square meters of independent manufacturing space configured for high-speed assembly and rapid prototyping.
27,000 square meters facility in Dongguan Huangjiang, featuring 24 high-speed pick-and-place machines and 12 automated PCBA lines.
Over two decades of engineering development and industrial scale advancement.
Commenced dedicated R&D for digital Battery Management Systems (BMS) in 2005. Expanded into power battery systems in 2006. Secured ISO9001 and ISO14001 certifications to standardize management and environmental compliance.
Secured 8 utility model and design patents in 2011. Established the Litongwei Technology Research Institute in 2012, driving R&D. Awarded the Del New Energy Quality Excellence Award in 2014.
Acquired IATF16949 automotive quality management certification in 2018. Integrated automated MES systems for warehouse and assembly flow. Honored with the Guangdong Battery Industry Association Innovation Award in 2019.
Implemented a "Smart Manufacturing+" operational framework. Leveraged IoT and cloud connectivity to enable telemetry for micro-inverters and high-power active balancer BMS platforms.
Why active balancing is essential for modern high-performance energy infrastructure.
Unlike passive systems that dump excess energy as heat, our Active Balancer BMS transfers energy from high-state-of-charge cells to low-state-of-charge cells. Using low-impedance inductive or capacitive circuits, the system balances voltage variations with minimal energy loss.
High thermal profiles shorten cell lifespans. Litongwei designs multi-point NTC thermistor arrays directly into the board layout. This allows the MCU to monitor temperature trends and modulate balancing currents dynamically to prevent localized hot spots.
Our intelligent architectures support CAN, RS485, and low-energy Bluetooth. Systems stream real-time telemetry (SoH, SoC, voltage deviations, cell temperatures) to displays or remote industrial gateways, enabling automated diagnostics.
Implementing low Rds(on) solid-state networks to raise active balancing current up to 5A–10A for large commercial energy storage systems.
Integrating adaptive Kalman Filtering and machine learning models within local MCUs to identify micro-shorts before they lead to thermal runaway.
Moving discrete designs toward single-chip ASICs, lowering system footprints while meeting functional safety requirements under ISO 26262 ASIL-D.
Collaborating with tier-one consumer electronics and industrial energy system companies globally.
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 adheres 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.
We leverage automation, including MES tracking and automated optical inspections (AOI), to monitor every stage of manufacturing—from raw SMT assembly to functional testing—under strict ISO 9001 and IATF16949 parameters.
100% functional validation across variable thermal ranges before shipping.
Consistently devoting more than 10% of annual sales back into laboratory testing and product improvement.
Helping partners address international regulatory compliance and localized operational safety requirements.
Our BMS boards comply with global regulations including CE, RoHS, FCC, and UL. They are engineered to help battery pack integrators pass regional transport safety certifications, such as UN38.3, without requiring costly design revisions.
We provide custom electrostatic protection packaging alongside compliant international logistics. Whether shipping ocean freight, air cargo, or bulk express, Litongwei handles high-risk battery-related electronic cargo efficiently.
We work with regional distributors to offer field support. This includes debugging help, communication protocol integration (such as CANOpen and Modbus), and firmware customization for specific application requirements.
Answers to key technical questions about active energy balance BMS architectures.
Intelligent BMS protection architectures for industrial equipment, light electric vehicles, and custom energy systems.
Litongwei Electronic