Technology Reigns Supreme, Efficient Service
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Technology Reigns Supreme, Efficient Service
LTW 20S 200A lithium battery protection board one-line pass + Bluetooth + 4.3-inch screen with heating intelligent BMS
LTW 10S 20A lithium battery protection board with CAN communication port intelligent BMS
LTW 20S 120A intelligent heating lithium battery protection board with Bluetooth and one-line configuration
LTW 20S 100A Lithium Battery Protection Board with NTC Same-Port Balanced Intelligent BMS
The global construction equipment battery market is projected to surpass $18 billion by 2030, driven by stringent emission regulations and the widespread adoption of electric excavators, loaders, and cranes.
Construction machinery performs thousands of high-current start-stop cycles per day. BMS units must manage instantaneous peak currents exceeding 200A while ensuring cell-level protection and longevity under harsh vibration and temperature extremes.
China's "dual carbon" goals, the EU's Stage V emission the EU's Stage V emission standards, and North America's Tier 4 Final regulations are compelling OEMs to integrate intelligent BMS with real-time diagnostics and remote monitoring capabilities into all new machinery platforms.
In construction machinery, a failed battery start event doesn't just cause inconvenience — it halts an entire job site, triggering cascading delays and cost overruns. An intelligent BMS with dedicated start-stop optimization ensures every ignition cycle is supported by precisely managed energy delivery, even in sub-zero temperatures or after extended idle periods.
Explore Our BMS ProductsMachine learning algorithms are replacing static Coulomb-counting methods for State of Charge (SOC) and State of Health (SOH) estimation. AI models trained on millions of construction-cycle data points deliver accuracy within ±1%, dramatically extending battery service life in excavators and bulldozers.
Modern construction BMS units communicate via CAN 2.0 and J1939 protocols, feeding real-time battery telemetry into fleet management platforms. Remote diagnostics, over-the-air firmware updates, and predictive maintenance alerts are becoming standard expectations from Tier 1 OEMs.
Low-temperature performance is a critical bottleneck for lithium batteries in cold-climate construction. Integrated self-heating BMS modules activate pre-warming routines before start-stop events, maintaining cell temperatures above -20°C to guarantee reliable cranking power in Arctic and alpine job sites.
As construction machinery migrates from 48V to 96V and 144V architectures, BMS designs must scale accordingly. Multi-string protection boards with synchronized balancing across 20S+ cell configurations are becoming the industry norm for heavy equipment power systems.
ISO 26262 and IEC 61508 functional safety standards are being applied to construction BMS designs. ASIL-B and ASIL-C rated protection circuits ensure that battery faults trigger safe system shutdowns rather than catastrophic failures, a requirement increasingly mandated by global insurers and fleet operators.
Construction equipment spans a vast power range — from 5kW compact tools to 500kW mining excavators. Modular BMS platforms that scale from 10S to 23S+ cell configurations with plug-and-play communication modules allow manufacturers to rationalize their supply chains while serving diverse machine classes.
High-current BMS (100A–200A) manages the intense energy demands of hydraulic systems during digging cycles, with active cell balancing ensuring uniform wear across 20S+ lithium packs operating 10–16 hours daily.
BMS with CAN communication and regenerative braking energy capture enables tower cranes to recover up to 30% of lowering energy, feeding it back to the battery pack with precise charge management during each start-stop lift cycle.
Warehouse and port electric loaders require BMS solutions with Bluetooth diagnostics and low-power standby modes, allowing fleet managers to monitor battery health across hundreds of units via mobile apps during shift changes.
In Siberia, Canada, and Scandinavia, construction continues year-round. Intelligent heating BMS modules pre-condition battery packs to optimal operating temperature before each start event, preventing lithium plating and capacity fade in sub-zero conditions.
Zero-emission mandates in underground mines demand BMS with explosion-proof ratings, real-time gas sensor integration, and redundant protection layers. High-voltage 23S configurations power continuous-duty drilling and haulage systems.
Emerging smart job sites deploy centralized battery energy storage with BMS-managed micro-grids, powering multiple machines simultaneously. Serial communication BMS units coordinate peak-shaving and load balancing across the entire site power ecosystem.
Construction machinery starter motors demand instantaneous current surges. Our BMS boards are rated for sustained 200A discharge with millisecond-level overcurrent response, protecting cells from damaging inrush events.
Passive balancing wastes energy as heat. Active balancing redistributes charge between cells during both charge and discharge cycles, extending overall pack life by 15–25% in high-cycle-count construction applications.
Seamless integration with J1939 vehicle networks, Bluetooth 5.0 maintenance tools, and cloud-based fleet management platforms via serial communication ensures full data visibility across the machinery lifecycle.
Multi-point NTC sensors monitor cell temperatures across the entire pack, triggering graduated protection responses — from charge current reduction to emergency shutdown — before thermal runaway can develop.
Construction site battery swaps are often performed under time pressure. Hardware-level anti-reverse connection protection prevents catastrophic BMS damage from incorrect polarity connections during field maintenance.
When machinery is parked overnight, BMS quiescent current drops to microampere levels, preventing battery self-discharge during extended idle periods — critical for seasonal construction equipment stored for weeks at a time.
On-board LCD displays provide operators with real-time SOC, voltage, current, temperature, and fault code information without requiring a separate diagnostic tool — reducing maintenance response time on active job sites.
Simplified single-wire programming allows field technicians to update BMS parameters, calibrate SOC, and configure protection thresholds without disassembling the battery pack — dramatically reducing service downtime.
Established in 2005, we are 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, power tools, and increasingly in construction machinery start-stop systems.
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.
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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.
As construction machinery electrification accelerates globally, Litongwei is uniquely positioned to serve OEMs, system integrators, and aftermarket service providers with BMS solutions that combine industrial-grade reliability, intelligent connectivity, and the scalability demanded by next-generation electric construction fleets.
Start with LITONGWEI — where every start-stop cycle is protected by intelligence.
Contact usTechnology-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 — including dedicated BMS platforms for construction machinery start-stop applications.
Shenzhen has over 13,000 square meters of independent factory space, and Dongguan Huangjiang has 27,000 square meters. The company is equipped with 24 pick-and-place machines for high-speed assembly and 12 PCBA production lines, with Litongwei's monthly output reaching over 15 million units — ensuring supply chain reliability for large-scale construction equipment programs.
Litongwei's R&D investment has consistently accounted for more than 10% of the company's sales for five consecutive years. This sustained commitment funds the development of next-generation BMS algorithms, hardware platforms, and communication protocols specifically optimized for heavy equipment start-stop cycles.
The company holds over 100 patents in the lithium-ion battery protection board industry, along with multiple patents in circuit/testing programs and automation. It provides enhanced intellectual property protection for clients and collaborates with them to mitigate infringement risks — a critical advantage for construction machinery OEMs entering competitive global markets.
LTW 20S 200A lithium battery protection board one-line pass + Bluetooth + 4.3-inch screen with heating intelligent BMS
LTW 10S 20A lithium battery protection board with CAN communication port intelligent BMS
LTW 20S 120A intelligent heating lithium battery protection board with Bluetooth and one-line configuration
LTW 20S 100A Lithium Battery Protection Board with NTC Same-Port Balanced Intelligent BMS
LTW 20S 60A lithium battery protection board with Bluetooth + serial communication and heating intelligent BMS
Litongwei 13-series 30A lithium battery protection board, charging off discharge, low-power intelligent BMS
LTW 13S 30A lithium battery protection board with switch NTC anti-reverse connection charging off discharge intelligent BMS
LTW 23S 60A lithium battery protection board with CAN/Bluetooth/heating dedicated intelligent BMS