Explore our core engineering products featuring cutting-edge hardware, safety boards, and communication control modules designed for global deployment.
Shenzhen Litongwei Electronic Technology Co., Ltd. (LITONGWEI) is a leading national high-tech enterprise specializing in the R&D, custom manufacturing, and system integration of lithium-ion safety control systems. Since our inception in 2005, we have committed ourselves to bridging the gap between cutting-edge energy storage and consumer convenience.
Our solutions empower mini portable chargers, 3C digital accessories, electric scooters, e-bikes, smart AGVs, drones, and industrial power tools globally. We resolve core procurement vulnerabilities by delivering comprehensive intellectual property protection (patent collaboration to mitigate design infringement), industry-standard shared boards (maximizing cost efficiency), full-process digital traceability (MES-backed quality assurance), and remote cloud platform support for automated field diagnostics.
Choosing Litongwei means acquiring engineered safety, robust product life cycle security, and an active manufacturing partner dedicated to global green energy innovation.
How we engineer high-density, smart, and ultra-miniaturized power banks to meet the demands of tomorrow's mobile ecosystem.
The demand for custom mini portable chargers has evolved past mere power capacities. Modern consumers require lightweight form factors, super-fast charging interfaces, and intelligent device diagnostics. Litongwei's core technology roadmap outlines how we achieve ultra-compact volumes while ensuring uncompromising safety profiles and high-speed energy transfer.
By substituting silicon with Gallium Nitride (GaN) semiconductors in our power bank circuits, we reduce energy loss by up to 30% and shrink power conversion modules by 40%. The result is a miniaturized chassis with cooler operations during high-current Power Delivery (PD) inputs and outputs.
We are transitioning custom cell specifications toward high-capacity silicon-carbon anode cells. Compared to conventional graphite batteries, silicon-carbon increases volumetric energy density to over 750 Wh/L, allowing mini portable chargers to hold up to 10,000mAh in structural sizes previously limited to 5,000mAh.
Modern enterprise fleets and shared-economy platforms demand data visualization. Our integration of Bluetooth Smart BMS allows users and operators to monitor State of Charge (SoC), State of Health (SoH), cell temperatures, and cycles count in real-time through custom mobile apps or cloud APIs.
Most failure points in mini power banks result from inadequate protection circuitry. Even a standard pocket charger requires complex protections against high currents and heat build-up. Litongwei's custom mini chargers feature built-in hardware protection boards that monitor the system at microsecond intervals.
With dual NTC temperature sensors (monitoring both the lithium cell surface and the PCB converter) alongside hardware-level anti-reverse charging and secondary over-voltage triggers, our portable chargers comply with the most stringent industrial parameters. Our custom designs leverage shared-board frameworks that streamline validation phases, allowing brands to launch products with proven, field-tested safety architectures in weeks rather than months.
Engineered power solutions customized for modern enterprise applications, lifestyle accessories, and smart city services.
We provide full-service turn-key options for consumer brands, including customized shapes, colors, unique connector configurations (e.g., built-in USB-C foldaway plugs), and eco-friendly retail-ready packaging designed for global logistics.
For large-scale enterprise deployments, we create bespoke power bundles with precision laser-engraved branding. Our devices support safe air freight transit (below 100Wh) and feature certified components to guard against corporate liability.
Litongwei supplies charging bays and modular mini battery packs engineered for kiosk installations, featuring unified contact charging pads, high cycle life, anti-theft telemetry, and heavy-duty dust and moisture protection ratings.
Efficiency, cost containment, and rigorous quality controls are the markers of our production lines. Our manufacturing ecosystem comprises two specialized modern production centers:
Equipped with 24 high-speed automatic pick-and-place lines and 12 complete PCBA production lines, we achieve a stable monthly output exceeding 15 million units. By executing digital factory practices via unified MES integrations, we trace every component from the arrival of the raw silicon/cell down to the final packaging barcode, ensuring transparent quality accountability.
Additionally, keeping research at the forefront, Litongwei has maintained R&D investments above 10% of our annual sales for five consecutive years, allowing us to pioneer circuit configurations and file over 100 technical patents within the green energy domain.
Global shipping of lithium-ion products requires total alignment with safety frameworks, hazard testing, and legal certifications.
Shipping high-density lithium-ion batteries across international boundaries demands flawless regulatory execution. Litongwei maintains a dedicated global compliance team that handles testing, filings, and certifications for target markets worldwide. Our factory processes are fully certified under ISO 9001:2015, ISO 14001:2015, and IATF 16949 automotive-grade quality management.
We guarantee that all custom mini chargers shipped conform to regional security rules, protecting our brand partners from customs holds, shipping rejections, or retail recalls:
| Parameters | Standard Specifications | Advanced High-Power Options | Bespoke Customization Ranges |
|---|---|---|---|
| Battery Cell Chemistries | Premium Li-Polymer (Grade A) | Silicon-Carbon Anode Cylindrical (21700) | NCM / LFP options based on thermal limits |
| Capacity Capacity (mAh) | 5,000 mAh | 10,000 mAh | 2,500 to 20,000 mAh scales |
| Fast Charging Protocols | PD 20W, QC 3.0 | PD 3.0 PPS (30W / 45W) | Bespoke multi-protocol handshakes (SCP, VOOC) |
| Input/Output Ports | 1x USB-C (Bi-directional) | Dual USB-C + Integrated plug | Custom foldaway USB-C / Lightning interfaces |
| Conversion Efficiency | ≥ 85% at nominal discharge | ≥ 92% (High-efficiency GaN circuit) | Optimized to match targeted temperature limits |
| Safety Protections | OVP, UVP, OCP, SCP | Multi-point NTC, Smart SoC balancing | Dynamic telemetry tracking via custom App |
Our journey of innovation, capacity expansion, and technical evolution.
In 2005, Litongwei 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.
Litongwei works alongside elite global technology brands, power cell innovators, and consumer electronics leaders.
Clear, direct answers regarding custom tooling, design, logistics, compliance, and warranty policies.
Our standard Minimum Order Quantity (MOQ) for custom-molded OEM/ODM mini chargers starts at 3,000 units. For white-label custom logo printing on our pre-designed, shared-board enclosures, we can accommodate runs starting at 1,000 units.
We execute strict Bilateral NDAs before any technical files or schematic drawings are shared. Our engineering process utilizes proprietary patent isolation to ensure that custom housings or specialized PCB designs are restricted exclusively to your brand, mitigating patent infringement risks.
Yes. As a dedicated safety control systems manufacturer since 2005, we build BMS architectures tailored to your specific application. This includes custom over-current thresholds, localized NTC settings, individual Bluetooth modules, and custom LED/LCD telemetry protocols.
Design for Manufacturability (DFM) verification takes 5 to 7 working days. Working prototypes are completed within 14 days. Once prototypes are approved, standard tooling requires 25-30 days, and mass production cycles average 25-35 days depending on the component volume.
Yes, our manufacturing bases in Dongguan and Shenzhen are certified under ISO 14001:2015 for environmental management and are open to third-party structural audits (such as BSCI or SGS audits) organized by our international clients.
We source only Grade A, capacity-matched cells from trusted suppliers (such as Eve Energy and Sunwoda) and carry out a mandatory 100% capacity matching and aging run on all finished products before packaging. All shipping lots receive complete OQC (Outgoing Quality Control) certificates.
Explore our industrial-grade micro-inverters, micro battery protection architectures, and outdoor lifestyle accessories.
Litongwei Electronic
