Explore our highly integrated core subsystems and accessories designed to construct the foundation of robust Portable Solar Power Systems.
Established in 2005, Shenzhen Litongwei Electronic Technology Co., Ltd. is a national high-tech enterprise specializing in the R&D and manufacturing of lithium-ion safety control systems. As an OEM Portable Solar Power Systems Manufacturer & Factory, we supply the core technologies that define safety, energy density, and lifetime utility in modern Portable Solar Power Stations.
Our safety control system solutions serve critical global sectors including 3C digital devices, electric scooters, e-bikes, micro-mobility, golf carts, AGVs, unmanned aerial vehicles (UAVs), and power tools. By engineering proprietary battery management systems (BMS) and high-efficiency micro-inverters, we deliver an end-to-end architecture that minimizes thermal risks and maximizes energy conversion efficiency.
Our commitment focuses on four pillars of product value: intellectual property protection (to secure international distribution chains), industry-standard shared boards (delivering targeted cost reduction and execution speed), full-process traceability (automotive-grade MES tracking), and remote maintenance platforms (cloud support for fleet operators).
How industrial engineering is addressing the convergence of energy density, regulatory safety, and structural efficiency.
Modern portable power systems are transitioning from ternary lithium chemistries to ultra-stable Lithium Iron Phosphate (LiFePO4) and solid-state architectures. As a factory at the forefront of this evolution, Litongwei integrates active BMS micro-heating elements (e.g., our 20S 120A heating protection boards) to enable efficient operation at extreme ambient conditions down to -30°C. Active thermal balancing prevents localized cell degradation, ensuring over 3,500 lifecycles at 80% Depth of Discharge (DoD).
Integration with LTWSmart Micro Inverters ensures pure sine wave AC output with a peak conversion efficiency of up to 96.5%. IP67 weatherproof packaging allows external chassis mounting to resist moisture and dust infiltration. The integration of bidirectional charging topologies reduces internal components, combining the AC-to-DC charger and the DC-to-AC inverter into a single power module. This results in up to 30% space savings and lighter designs for off-grid users.
Through smart communication protocols (CAN, RS485, and Bluetooth), our power management solutions stream real-time operational metrics to mobile applications and cloud management dashboards. System integrators and fleet owners can remotely monitor Cell Voltage Deviation, State of Charge (SoC), State of Health (SoH), and internal temperatures. Predictive failure algorithms issue alerts before issues arise, mitigating risk profiles for high-value machinery deployments.
Historically, portable solar stations functioned as standalone reserve batteries with low conversion rates. Modern systems, built upon our high-efficiency micro-inverters and dynamic smart BMS, function as grid-interactive energy hubs. They operate on intelligent load sensing and rapid transfer algorithms (less than 10 milliseconds), making them optimal for running heavy inductive loads, backup medical setups, and precise telecommunications hardware without micro-interruptions.
Nearly two decades of technical milestones, safety certifications, and industry innovation.
Initiated dedicated R&D and manufacture of digital Battery Management Systems (BMS) in 2005. Scaled operations to power battery systems in 2006. Achieved ISO9001 certification in 2007 and ISO14001 in 2009, creating our foundational quality framework.
Secured 8 utility model and design patents in 2011. Established the Litongwei Technology Research Institute in 2012 to explore high-voltage safety control. Received the Del New Energy Quality Excellence Award in 2014 and recognized as a Gold Partner in Lithium Battery industries in 2015.
Upgraded environmental standards in 2016. Attained the IATF16949 automotive quality management system certification in 2018. Deployed our Manufacturing Execution System (MES) to orchestrate warehouse automation and tracing. Awarded the Innovation Prize in 2019.
Drove convergence of IoT, micro-inverters, and power storage. Integrating intelligent charging electronics into multi-power supplies. Expanded production capability across Shenzhen and Dongguan Huangjiang plants to serve tier-one global brands.
Navigating the global energy infrastructure market requires resilient manufacturing capabilities. At Litongwei, our production network spans across two advanced production bases: a 13,000 square meter independent facility in Shenzhen and a 27,000 square meter factory in Dongguan Huangjiang.
This combined 40,000 sqm footprint is equipped with 24 high-speed SMT pick-and-place machines and 12 fully automated PCBA lines. This scale enables a monthly output of over 15 million units, securing short lead times even during market volatility.
The Integration of our MES (Manufacturing Execution System) ensures that every PCB, BMS, and inverter module carries a unique tracking identifier. From component-level sourcing to wave soldering and final functional testing, every step is logged and traceable. This strict process control minimizes field failure rates, protects your brand reputation, and simplifies safety audits for overseas markets.
Tailoring modular solar storage architectures to high-demand applications across various industries.
Mining, scientific research outposts, and agricultural telemetry networks require continuous power. Our high-power portable systems feature ruggedized enclosures, MPPT controllers with 99.8% tracking efficiency, and robust protection systems (reverse polarity, surge protection, and multi-sensor thermal shutoffs) to ensure system durability in demanding conditions.
When municipal power grids fail, critical medical systems (CPAP, field diagnostics, and pharmaceutical refrigeration) must remain online. Incorporating our advanced 13S or 20S smart BMS boards with anti-reverse charging features protects battery packs against electrical instability, ensuring safe operation for critical medical backup applications.
Urban residential solar configurations utilize our LTWSmart Micro Inverters to transform balcony spaces into micro-generation stations. By connecting portable solar generators directly to household outlets, our systems offset base electricity loads, feeding excess clean power back into the domestic loop with minimal conversion losses.
For B2B buyers, importing lithium-ion energy systems presents regulatory challenges. Litongwei mitigates import friction by ensuring compliance with global certifications: CE, FCC, RoHS, UN38.3 (transport safety), and UL safety standards. Our IATF16949 certification demonstrates quality management alignment with demanding automotive-grade requirements.
In addition to safety certifications, intellectual property protection is a key concern for global importers. Litongwei holds over 100 patents in the lithium-ion battery protection board industry, covering circuitry design, testing software, and mechanical automation. By partnering with us, you utilize pre-cleared, patented technologies that mitigate the risk of intellectual property infringement in Europe and the Americas.
We offer customized engineering design services (ODM/OEM) that adapt casing designs, communication interfaces, and battery capacities to match localized regulatory constraints and consumer preferences.
Detailed answers to critical technical questions regarding portable power manufacturing, BMS selection, and compliance.
Our BMS boards feature multi-tier security layers: anti-reverse charging, independent NTC temperature sensors, active balancing, and over-current protection. The integration of communication protocols like CAN and Bluetooth enables firmware updates and system telemetry, ensuring safety and performance across a wide operating envelope.
Portable solar power stations are frequently exposed to dynamic outdoor environments, including rain, dust, and coastal humidity. An IP67 rating ensures the micro-inverter remains sealed against water submersion (up to 1 meter) and dust ingress. This prevents internal electrical shorts, corrosion, and power degradation over years of field deployment.
With over 100 patents in circuit design, firmware logic, and physical architectures, all Litongwei products are designed with proprietary IP. We provide formal patent authorization and collaborate with clients during the development phase to ensure that all custom-designed components do not violate third-party intellectual property rights in their target markets.
Across our Shenzhen and Dongguan factories, we run 24 high-speed SMT lines and 12 PCBA lines, delivering a monthly capacity of 15 million units. For standard OEM configurations, initial production runs typically average 3 to 4 weeks. Custom ODM structures requiring new casing molds and specialized certification updates are scheduled based on project scope.
IATF16949 is a demanding quality standard in the automotive industry. It requires strict defect prevention, process variation reduction, and supply chain tracking. Utilizing these automotive-grade guidelines in consumer energy products reduces failure rates to PPM (Parts Per Million) levels, ensuring reliability for off-grid and backup use cases.
Our long-term partners include leading international technology and energy brands.
Browse our specialized selection of smart battery protection boards, modular micro-inverters, and accessories.
Litongwei Electronic
