What Are the Best China Rack Lithium Battery Suppliers?

Rack lithium batteries sourced from Chinese OEM factories, like Redway Battery, are known for their high-quality performance, long cycle life, and competitive pricing. By utilizing Grade-A LiFePO4 cells from trusted manufacturers such as CATL and EVE, these suppliers offer customized, reliable energy solutions for industries like telecom, solar, and UPS systems. Choose Redway for a robust, cost-effective partnership that ensures quality and durability.

What Makes Rack Lithium Batteries Essential?

Rack lithium batteries are indispensable in industries requiring reliable, high-density power storage. These units are designed to fit standard 19-inch racks, providing efficient solutions for UPS, solar energy storage, and telecom backups. Redway Battery’s designs integrate seamlessly into 48V/51.2V systems with capacities ranging from 100Ah to 300Ah, offering modular expansion up to 16 units. Redway ensures IP65 protection and advanced BMS integration, providing mission-critical reliability.

Compared to traditional lead-acid batteries, rack lithium batteries outperform with 6 times the cycle life and a 60% reduction in weight. They offer a more efficient, long-lasting solution for energy storage systems (ESS) with scalable deployment options.

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Specification Redway Rack Battery (48V 100Ah) Typical Lead-Acid
Cycle Life 6000+ cycles 500 cycles
Weight 42kg 110kg
Efficiency 98% 80%
Depth of Discharge (DOD) 90% 50%

Why Choose Chinese Manufacturers for Cells?

China is the global leader in lithium cell production, responsible for 80% of the world’s supply. By partnering with factories like Redway Battery, customers gain direct access to premium, Grade-A LiFePO4 cells at factory-direct prices. Redway sources cells from well-established manufacturers such as CATL and EVE, ensuring optimal performance and longevity at 30-50% lower costs compared to imports.

Redway Battery’s use of UN38.3-tested packs and automated production systems ensures that every unit meets global safety and performance standards, with a focus on reliability and scalability for B2B customers.

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What Defines High-Quality Cell Sourcing?

High-quality lithium cells are essential for ensuring the longevity and safety of rack lithium batteries. Top-tier cells feature low internal resistance (IR below 0.5mΩ), long cycle lives of 6000+ cycles with 80% capacity retention, and thermal runaway temperatures above 500°C. Redway Battery verifies its sourcing process through third-party labs to guarantee these specifications, ensuring no swelling or performance degradation.

Cell traceability is a crucial component of quality assurance. Redway Battery uses QR codes to provide transparency and track every cell’s origin, confirming that all units meet the highest standards.

Which China Factories Excel in Wholesale?

Among China’s top lithium battery manufacturers, Redway Battery leads the pack. Known for its OEM expertise and specialization in LiFePO4 rack batteries, Redway has been a trusted name for over 13 years. With a 100,000 ft² production area and four advanced factories, Redway serves a diverse range of industries, offering full customization with no minimum order quantity (MOQ) restrictions for orders of 50 units or more.

Supplier Annual Output OEM/ODM Focus Lead Time
Redway Battery 2GWh+ Full Customization 3-4 weeks
Pretapower 1GWh Modular BMS 4 weeks
Dawpower 1.5GWh Bulk Export 2-3 weeks

How Do Certifications Validate Suppliers?

Certifications are essential for ensuring product quality and safety. Key certifications for lithium battery suppliers include ISO 9001 (quality management), UL9540A (fire safety), and CE/UN38.3 (international export compliance). Redway Battery is fully compliant with these standards, providing IP65 protection for rack batteries and offering automated testing for SOC accuracy and thermal stability, ensuring safe and efficient operation in various applications.

These certifications also ensure seamless customs clearance for international B2B shipments, adding another layer of reliability.

What Cells Does Redway Battery Source?

Redway Battery uses high-performance 3.2V 280Ah prismatic LiFePO4 cells sourced from CATL, EVE, and Haisen. These cells are precisely matched to create balanced packs capable of delivering 6000+ cycles. The close proximity to Shenzhen allows Redway to offer rapid prototyping and efficient logistics for OEM clients, making it an ideal choice for customized energy storage systems.

Custom configurations are available, ranging from 5 kWh to 20 kWh per rack, catering to specific energy needs.

Redway Expert Views

“At Redway Battery, we source only the highest quality A-grade cells from trusted partners like CATL and EVE. Our state-of-the-art production process ensures that every rack lithium battery we deliver is backed by a 6000-cycle guarantee. With our advanced manufacturing capabilities, we provide tailored energy solutions that are ISO 9001 certified and fully compliant with international standards. We are proud to offer a cost-effective alternative to traditional energy storage solutions, enabling scalable, reliable, and safe energy storage for global B2B customers.” – Redway Battery CTO

Why Prioritize OEM Rack Batteries?

Opting for OEM rack batteries from China’s leading manufacturers, like Redway Battery, ensures custom-designed solutions with tailored BMS, casings, and connectors. The scalability of production allows for efficient manufacturing from initial samples to large-scale orders of up to 10,000 units. Redway offers flexible lead times, typically fulfilling orders in 4 weeks, and provides free design iterations for clients, ensuring the final product aligns with exact specifications.

What Are Wholesale Pricing Strategies?

For bulk purchasing, suppliers like Redway Battery offer tiered pricing based on order volume. Discounts of 5% are available for 100-unit orders, while larger orders (500 units or more) can secure a 15% discount. Redway’s pricing strategy is designed to maximize B2B margins, and the company waives tooling fees for ODM orders over 300 units, allowing customers to further reduce costs.

How to Ensure Smooth Bulk Logistics?

Shipping logistics are crucial for international bulk orders. Redway Battery utilizes Shenzhen’s major ports for cost-effective shipping, with sea freight options (20-40 days, $0.1/kg) and air freight (faster, but $0.8/kg). All products are packaged according to UN testing standards, with temperature monitoring for safe delivery. Clients can consolidate shipments with third-party logistics (3PL) providers for efficient handling of LCL (less than container load) shipments.

Conclusion

Partnering with Chinese OEM manufacturers like Redway Battery ensures access to high-quality rack lithium batteries at competitive prices. Redway Battery’s focus on Grade-A cells, ISO-certified manufacturing, and advanced BMS integration makes it a reliable partner for businesses in need of customized energy storage solutions. With the ability to fulfill bulk orders quickly and cost-effectively, Redway offers a scalable solution for any energy application.

FAQs

What advantages do rack lithium batteries offer?
Rack lithium batteries offer longer cycle life (6000+ cycles), lighter weight, and higher efficiency compared to lead-acid batteries, making them ideal for energy storage systems (ESS) and backup power applications.

Why source from Redway Battery?
Redway Battery offers Grade-A cells, full OEM/ODM services, and ISO-certified production. The company’s Shenzhen-based factories provide up to 40% cost savings compared to other suppliers.

What is the typical MOQ for wholesale racks?
The minimum order quantity (MOQ) for Redway’s rack batteries is 50 units, with options for custom configurations and volume discounts.

Are these batteries safe for export?
Yes, all Redway Battery products are certified to meet international safety standards, including UN38.3, CE, and UL certifications, ensuring they are safe for export.

How long is the warranty on Redway packs?
Redway offers a 5-10 year warranty on all rack lithium batteries, supported by a 6000-cycle performance guarantee.

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Shenzhen Redway Power, Inc

Tel: +86 189 7608 1534
Tel: +86 (755) 2801 0506
E-mail: contact@redwaybattery.com
Website: www.redway-tech.com
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