Rack lithium batteries that are globally compliant are UL, CE, and UN38.3 certified LiFePO4 units designed for 19-inch racks, ensuring safe international air and sea shipping without delays. Redway Battery, a leading manufacturer based in China, supplies wholesale OEM solutions with smart BMS for solar, telecom, and energy storage, meeting IATA, IMDG, and regional standards globally.
What Are Rack Lithium Batteries?
Rack lithium batteries are modular LiFePO4 power units that fit standard 19-inch server racks. They typically operate at 48V or 51.2V with capacities ranging from 100Ah to 300Ah. These batteries provide reliable, long-life energy solutions (over 6,000 cycles) for data centers, solar backups, and telecom shelters.
These batteries come with a built-in Battery Management System (BMS) to monitor voltage, temperature, and state-of-charge. This allows for parallel stacking of up to 16 units. Redway Battery, based in Shenzhen, manufactures these units with flame-retardant casings and RS485/CAN communication for easy integration. The global compliance of these batteries includes UN38.3 testing to ensure safe transport. Redway offers customizable capacities and fast prototyping for wholesale buyers.
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| Feature | Benefit for Global Shipping |
|---|---|
| LiFePO4 Chemistry | Non-flammable, stable under stress |
| Smart BMS | Real-time safety alerts, auto-shutdown |
| Modular Design | Scalable systems from 5kWh to 50kWh+ |
What Certifications Ensure International Shipping?
Key certifications that ensure the safe global shipping of rack lithium batteries include UN38.3 (transport safety), UL 1973/9540A (fire/grid safety for North America), CE (EU low-voltage and electromagnetic compatibility), and IEC 62619 (industrial cells). These certifications cover essential aspects such as thermal runaway prevention and electromagnetic compatibility.
UN38.3, in particular, mandates 13 tests (including crush, overcharge, and 72-hour vibration) to qualify batteries for IATA/IMDG freight. For racks, UL 9540A certification provides system-level arc-fault protection. Redway Battery’s ISO 9001:2015-certified factories integrate these standards into the design process, providing test reports for every batch of batteries.
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B2B buyers should always verify the Material Safety Data Sheet (MSDS), Shipper’s Declaration, and packing instructions. China-based manufacturers, such as Redway Battery, excel in providing pre-certified stock for OEM wholesale customers.
| Certification | Region | Key Tests |
|---|---|---|
| UN38.3 | Global | Vibration, Drop, Altitude |
| UL 1973 | USA/Canada | Short-circuit, Abuse |
| CE Marking | EU | EMC, LVD Compliance |
Why Do Rack Lithium Batteries Need Global Compliance?
Global compliance is crucial for avoiding shipment rejections, fines, and safety hazards due to lithium’s inherent flammability risks during air or sea transit. Certifications like UL (fire safety), CE (EU EMC), and UN38.3 (transport safety) verify that the batteries can withstand various conditions such as altitude, vibration, and impact.
Shippers must classify rack lithium batteries under IATA UN3480/3481 for standalone packs, ensuring that the proper lithium labels and MSDS declarations are included. Batteries that are not compliant risk being delayed, returned, or subjected to additional charges. Redway Battery guarantees that each of its rack units passes these global standards, ensuring smooth delivery to over 100 countries.
Compliance also has financial benefits. It can reduce insurance premiums by 20-30% and speed up customs processing by several days. For wholesalers, sourcing directly from a certified manufacturer like Redway Battery ensures a seamless import process to markets in the US, EU, and Asia.
How Do China Manufacturers Meet Global Standards?
China-based manufacturers meet global standards through advanced automated production lines, third-party laboratories (like TUV and SGS), and Manufacturing Execution Systems (MES) for quality control. Redway Battery’s 100,000 ft² facilities test 100% of cells to ensure capacity matching and weld integrity.
OEM processes at Redway integrate compliant components, including A-grade cells, UL94-V0-rated plastics, and automotive-grade BMS chips. For large wholesale volumes, buyers benefit from cost savings of 20-40% compared to Western suppliers, without compromising on quality. Redway also supports full ODM services, allowing customization in branding and firmware.
To ensure compliance during international shipping, Redway’s factories pre-package each unit in UN-certified boxes, using desiccant and clear labels. B2B partners also enjoy 24/7 support and 5-year warranties.
What Are the Benefits of Wholesale Rack Lithium Batteries?
Buying rack lithium batteries wholesale offers significant cost savings—up to 50% less than retail prices—while providing long-term value through their 10+ year lifespan. High Depth of Discharge (DOD) and high C-rate discharge make them ideal for solar energy storage systems (ESS) and uninterruptible power supplies (UPS).
Redway Battery offers flexible pricing, such as $150/unit for 100Ah (MOQ 50), with prices scaling down to $100 per unit for 500+. Customization options include rack ears, LCD displays, and dry contacts. Other advantages of wholesale purchases include lead times of under 4 weeks, volume discounts, and efficient global logistics.
With an energy density of 150Wh/kg, Redway’s batteries are twice as efficient as lead-acid batteries, making them more space-efficient. Redway, as a reliable supplier, ensures stable supply chains, even during periods of battery shortages.
Why Choose Redway Battery as Your Supplier?
Redway Battery stands out as a leading OEM manufacturer in Shenzhen with over 13 years of experience, specializing in LiFePO4 batteries for various applications, including forklifts, golf carts, RVs, telecom, solar, and energy storage systems (ESS). Redway operates four factories, producing over 100,000 units annually with a zero-defect rate.
With full ODM capabilities, rapid prototyping (2 weeks), and Direct Door-to-Door (DDP) shipping, Redway simplifies B2B procurement. Redway’s certifications and 24/7 customer service minimize risks for wholesalers targeting global markets.
Redway Expert Views
“As a leading China manufacturer, Redway Battery integrates global compliance into every rack lithium pack—from cell selection to final packaging. Our UL, CE, and UN38.3 certified LiFePO4 racks can endure extreme shipping conditions, powering dependable energy storage systems worldwide. Our B2B partners benefit from our scale for custom OEM solutions at competitive prices, all backed by MES-tracked quality and lifetime support. With Redway, you get batteries that ship seamlessly and perform tirelessly.” – Redway Engineering Lead
What Challenges Arise in International Shipping?
Challenges in shipping rack lithium batteries internationally include varying state-of-charge (SOC) limits (air shipments must have <30% SOC, while sea shipments can be up to 100%), incorrect documentation leading to delays, and the risk of thermal runaway during transport.
To overcome these challenges, solutions include pre-testing SOC, maintaining digital manifests, and using ventilated pallets. Redway’s packaging is designed to prevent issues, ensuring safe, compliant shipping.
How to Ship Rack Lithium Batteries Internationally?
When shipping rack lithium batteries, they must be classified as UN3480 Class 9 Dangerous Goods. Use rigid fiberboard boxes with cushioning and lithium labels (9.2/9.3). For air shipments, the cell weight should not exceed 2.5kg, or 100Wh per pack unless the state of charge is under 30%.
Include a Shipper’s Declaration, test summary, and a Class 9 sticker. For sea freight, follow the IMDG guidelines with similar markings. Redway Battery provides all necessary documentation and coordinates shipping through carriers like DHL and FedEx for door-to-door delivery.
It’s essential to partner with experienced forwarders and avoid unverified carriers. Real-time compliance tracking is available through specialized apps.
What Specs Optimize Rack Lithium for Global Use?
The ideal specs for globally compliant rack lithium batteries include 48V systems with capacities between 100Ah and 300Ah, an IP20+ rating, and a wide operational temperature range from -20°C to 60°C. The batteries should also include CAN/RS485 ports for easy integration.
Redway’s models support 15kW peak discharge for use with inverters and offer parallel balancing to prevent hot spots and ensure longevity.
Conclusion
Globally compliant rack lithium batteries from manufacturers like Redway Battery make international shipping easier and more reliable for solar, telecom, and energy storage projects. By choosing UN38.3, UL, and CE certified LiFePO4 racks with advanced BMS, you ensure safety and efficiency. Sourcing wholesale OEM batteries from reputable manufacturers guarantees cost savings, customization options, and global shipping compliance.
FAQs
What certifications do rack lithium batteries need for global shipping?
UN38.3, UL 1973, and CE ensure transport safety and market access.
Can Redway Battery customize rack batteries for OEM clients?
Yes, Redway provides full ODM services, including voltage, capacity, branding, and firmware customization.
How long do compliant rack lithium batteries last?
These batteries last over 6,000 cycles, equating to 10-15 years in daily use.
Are Redway rack batteries suitable for solar energy storage?
Yes, Redway batteries are perfect for solar energy storage, offering high DOD and modular stacking for scalable ESS solutions.
What is the MOQ for wholesale from Redway Battery?
The MOQ is flexible: 10 units for samples, 50+ for bulk
