Explore our state-of-the-art battery management systems, intelligent communication modules, and power protection technologies engineered for global industry leaders.
How the 24V-29.4V battery protection standard underpins modern low-voltage industrial and electric mobility sectors worldwide.
In the rapidly evolving battery management industry, the 7S BMS (7 Series Battery Management System) has established itself as the baseline standard for applications operating in the 24V to 29.4V nominal range. This voltage range is widely acknowledged as the optimal threshold for balancing thermal efficiency, component weight, safety design considerations, and energy density. Across Europe, North America, and parts of the Asia-Pacific region, the demand for custom 7S BMS solutions has skyrocketed. This growth is primarily driven by the transition of consumer and industrial machinery from traditional internal combustion or lead-acid setups to clean lithium-ion (Li-ion) and lithium iron phosphate (LiFePO4) chemistries.
From an industrial standpoint, the 7S configuration is critical for modern light electric mobility. This includes electric bikes (e-bikes), low-speed delivery vehicles, utility scooters, and smart agricultural robots. These applications require a highly reliable protective circuit board to prevent thermal runaway and optimize power delivery under extreme mechanical stresses. Our custom 7S BMS boards address these needs by integrating hardware protection ICs with microcontrollers (MCUs) that monitor individual cell voltages, package temperature, and real-time current draw. By stabilizing the voltage architecture, international equipment designers can extend battery lifespans by up to 40%, meeting strict consumer and commercial expectations for sustainability and long-term durability.
Utilizes 7 series configurations to achieve a highly stable 24V-29.4V range. This configuration minimizes copper resistive losses while maintaining a safe low-voltage (SELV) architecture.
Fully compatible with NMC (Lithium Nickel Manganese Cobalt Oxide), LiFePO4 (Lithium Iron Phosphate), and LTO (Lithium Titanate) cells, allowing for flexible custom-engineered safety parameters.
Integrates advanced industrial communication protocols like UART, RS485, CANbus, and Bluetooth. These enable cloud diagnostics, remote telemetry, and direct mobile application monitoring.
A premier national high-tech enterprise specializing in the R&D and manufacturing of lithium-ion safety control systems.
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 leading provider of intelligent green energy management solutions, embracing environmental sustainability. Start with LITONGWEI!
Our strategic vision is driven by continuous engineering innovation and compliance with international standards. We aim to help global businesses transitions seamlessly from outdated power architectures to robust, smart lithium battery systems.
Why global brands trust Chinese production pipelines for high-precision, large-scale BMS manufacturing.
When sourcing custom 7S BMS solutions at scale, manufacturing speed, component availability, and quality consistency are critical. This is where Chinese electronics factories excel, establishing Shenzhen and Dongguan as the Silicon Valley of hardware. The concentration of component suppliers, raw silicon processors, PCB fabrication facilities, and automated assembly plants allows us to cut prototype cycles by over 50% compared to Western manufacturing alternatives.
At Litongwei, our manufacturing advantage is built on deep integration, massive scale, and modern automation. With over 13,000 square meters of production space in Shenzhen and a 27,000 square meter high-volume factory in Dongguan Huangjiang, we provide an optimized production ecosystem. We run 24 high-speed SMT pick-and-place lines and 12 dedicated PCBA lines, reaching a monthly output of over 15 million units. This massive capacity allows us to manage large orders while maintaining fast, reliable delivery timelines.
Our dual factories span 40,000+ total square meters, allowing us to rapidly scale production to meet sudden shifts in global market demand.
We reinvest over 10% of our annual sales back into R&D. This continuous funding fuels the development of our Smart BMS technologies and helps secure our intellectual property portfolio.
With more than 100 patents in the battery protection board industry, we offer our clients robust patent collaboration to minimize infringement risks in highly competitive markets.
Delivering high-performance battery management technology through advanced engineering and scaled manufacturing.
Our factory's MES (Manufacturing Execution System) provides real-time tracking for every SMT placement and functional test, ensuring end-to-end component traceability. This level of quality control is essential for global buyers who require IATF16949-compliant manufacturing for automotive and light EV integrations.
Additionally, our shared-board strategy helps reduce production costs. By using standardized circuit patterns across similar voltage profiles, we cut tooling costs and speed up assembly without sacrificing reliability. This approach allows clients to scale production efficiently while remaining competitive.
How custom 7S BMS solutions power critical systems across consumer, medical, and light industrial markets.
In Europe and North America, urban micro-mobility depends on reliable e-bikes and e-scooters. The 7S lithium-ion configuration delivers a steady 24V supply that matches low-power hub motors perfectly. Intelligent Bluetooth monitoring enables users to track battery health via mobile apps, while integrated overcurrent and thermal protection shield the cells from damage during rapid acceleration or steep climbs.
Smart warehousing relies on AGVs operating around the clock. Custom 7S LiFePO4 battery packs provide the stable voltage required for high-torque motors. Integrating CANbus communication with our BMS allows the central warehouse management system to monitor charge states in real time, coordinating automated opportunity charging with zero human intervention.
Medical carts and portable oxygen concentrators require reliable power solutions. A custom 7S BMS protects these systems against voltage drops and overcharging, ensuring compliance with strict healthcare standards. The addition of dual-redundant hardware protection guarantees safe, continuous operation in critical environments.
Modern commercial leaf blowers, chainsaws, and lawnmowers demand high-current discharges. 7S BMS configurations designed with low internal resistance MOSFETs handle transient peaks up to 80A. High-accuracy cell balancing ensures cells drain evenly, preventing premature pack failure even under high vibration and dust exposure.
The battery management sector is undergoing a major shift toward smart, connected architectures. As IoT adoption grows, static protection boards are being replaced by dynamic systems featuring on-chip edge computing. Real-time state-of-health (SoH) tracking using advanced impedance spectroscopy is quickly becoming an industry standard. Additionally, the shift toward active balancing methods—which redirect energy from stronger to weaker cells rather than wasting it as heat—is helping battery packs run cooler and charge faster.
Two decades of engineering innovation, international quality certifications, and global market expansion.
Commenced R&D and manufacturing of digital Battery Management Systems (BMS) in 2005. Expanded into power battery management system development in 2006. ISO9001 certification obtained in 2007, followed by ISO14001 certification in 2009.
Secured 8 utility model and design patents in 2011 while expanding mobile power bank manufacturing. Established the Litongwei Technology Research Institute in 2012. Received the Del New Energy Quality Excellence Award in 2014 and the Gaogong Lithium Battery Gold Partner title in 2015.
Upgraded ISO9001 and ISO14001 in 2016. Achieved IATF16949 certification in 2018 and implemented an MES system for warehouse automation. Received the Guangdong Battery Industry Association Innovation Award in 2019 and recognized as a leading brand in e-bike protection board technology in 2020.
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.
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.
Critical technical, regulatory, and financial criteria procurement managers must evaluate when selecting a BMS supplier.
Procuring custom BMS solutions at an enterprise level requires careful evaluation of more than just price. Global buyers must balance system safety, local regulatory compliance, supply chain transparency, and intellectual property protection to avoid costly recalls or legal hurdles. Below are the key pillars that international procurement teams prioritize:
BMS designs must comply with international standards such as CE, FCC, RoHS, and UL. At Litongwei, our products undergo strict testing protocols—including high-low temperature runs, mechanical shock, and electrostatic discharge (ESD) tests—to ensure safe operation in demanding environments.
Navigating global patent landscapes is a constant challenge. Working with an R&D-focused manufacturer like Litongwei—holding over 100 patents in circuit design and testing software—allows buyers to customize solutions within a secure, IP-compliant framework, minimizing infringement risks.
Industrial applications demand strict component quality. We implement MES systems and automated testing rigs (ATE) to track every PCB board's manufacturing data. This makes it easy for buyers to pull production records, check individual components, and trace quality metrics end-to-end.
Find technical answers and sourcing insights for custom 7S BMS solutions.
We offer a complete range of smart protection systems, micro-inverters, and high-capacity battery accessories tailored for global distribution.
Litongwei Electronic
