Rack lithium batteries, also known as rack-mounted LiFePO4 packs, provide stable 48V-51.2V power for solar storage, UPS systems, and telecom backups. These batteries feature built-in BMS protection, over 6000 cycles of durability, and scalability up to 16 units. As a leading China-based OEM supplier, Redway Battery delivers customizable, wholesale rack solutions directly from their Shenzhen factories.
What Are Rack Lithium Batteries?
Rack lithium batteries are compact, 19-inch rack-mountable LiFePO4 packs designed for energy storage in solar inverters, data centers, and telecom backup systems. They include a built-in Battery Management System (BMS) for safety monitoring and enhanced performance.
These batteries are known for their high cycle life, offering over 6000 cycles at 80% Depth of Discharge (DOD), a wide temperature range from -20°C to 55°C during discharge, and easy scalability. Redway Battery manufactures these batteries with ISO 9001 certification, ensuring high-quality production for global B2B clients. Redway specializes in customized, wholesale rack solutions for various applications including forklifts, RVs, and solar power systems, and they offer support with high-volume orders and 24/7 after-sales service.
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What Are Key Specifications?
Rack lithium batteries feature key specifications such as a 51.2V nominal voltage, capacities ranging from 50Ah to 200Ah, a maximum charge/discharge rate of 1C, and compact dimensions. Below is a breakdown of typical specifications:
| Specification | Typical Value | Redway OEM Option |
|---|---|---|
| Voltage | 51.2V | Customizable |
| Capacity | 100Ah | 50-200Ah |
| Cycle Life | >6000 | 90% DOD @0.5C |
| BMS Features | Overcharge/Short-circuit | Active Balancing |
| Comm Ports | RS485/CAN | Modbus Support |
Redway Battery’s rack lithium batteries excel in parallel setups, supporting configurations of up to 16 units for high-reliability applications.
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How Do Rack Lithium Batteries Work?
Rack lithium batteries use LiFePO4 cells integrated with a BMS to monitor voltage, current, temperature, and state of charge. During charging, the BMS balances the cells, and during discharge, the system ensures the voltage stays within safe limits by activating load detection.
The BMS also protects the battery from overvoltage, undervoltage, and excessive temperatures through MOSFET control. Additionally, parallel operation links the battery packs together via RS485 communication for synchronized performance, ensuring the system operates efficiently and safely.
How to Install Rack Lithium Batteries?
To install rack lithium batteries, mount them in standard 19-inch racks using lifting equipment for heavier units and secure them with screws. Connect the positive and negative terminals from the first and last units in the parallel strings, and use RJ45 connectors for RS485 or CAN communication with the inverters.
Ensure proper setup of dial switches for master-slave configuration and verify the polarity of connections. Redway Battery provides detailed installation guides to ensure a safe and efficient setup, tailored to your specific requirements.
What Safety Features Do They Have?
Rack lithium batteries come with a range of built-in safety features, including a robust BMS that offers protection against overcharge, over-discharge, overcurrent, short circuits, and temperature extremes. The active balancing mechanism ensures the health and longevity of the battery cells.
Additionally, the batteries are housed in flame-retardant casings with an IP20 rating, providing reliable safety during operation. Redway Battery’s commitment to safety is reflected in their adherence to ISO standards, and their battery packs meet UN38.3 shipping compliance for safe transportation worldwide.
Why Choose LiFePO4 for Rack Batteries?
LiFePO4 batteries are a preferred choice for rack applications due to their exceptional safety, long lifespan, and high efficiency. Unlike other chemistries like lead-acid, LiFePO4 batteries do not experience thermal runaway, and they offer more than 6000 charge cycles at 100% DOD, significantly outperforming lead-acid batteries that typically last for only 1000 cycles.
LiFePO4 also allows for higher discharge rates, making it suitable for high-demand solar peak times. Cost-per-cycle for LiFePO4 batteries reduces by up to 60% over the long term, offering excellent value for users. Redway Battery specializes in providing cost-effective and reliable LiFePO4 rack batteries, making them an ideal choice for large-scale energy storage solutions.
How to Maintain Rack Lithium Batteries?
For optimal performance, store rack lithium batteries at 50% State of Charge (SOC) in a temperature range of -10°C to 45°C. Charge the batteries monthly if they are not in use, and monitor the battery health using RS485 communication or app-based monitoring for alarms.
It is also essential to clean battery terminals regularly and avoid deep discharges below 20V. With proper maintenance, these batteries can last for more than 10 years, providing a long-term and cost-effective energy solution.
What Are Common Applications?
Rack lithium batteries are versatile and can be used in a variety of applications, including solar energy storage systems, UPS backups, telecom base stations, electric vehicles, and data centers. They offer a lighter, more efficient alternative to lead-acid batteries, and they require zero maintenance.
Redway Battery manufactures and supplies LiFePO4 rack batteries for a wide range of industries, including forklifts, golf carts, RVs, and energy systems, serving clients around the world with customizable and scalable solutions.
Redway Expert Views
“As a Shenzhen-based OEM factory with over 13 years of experience in LiFePO4 technology, we’ve optimized rack lithium batteries to meet the growing demand for scalable, high-performance energy storage solutions. Our facilities use MES automation to ensure precision manufacturing and a yield rate of 99.9%. Redway Battery’s focus on safety, durability, and customization ensures that our clients receive the best possible products for applications ranging from solar farms to telecom infrastructure.” – Redway Battery Engineering Lead
How to Troubleshoot Issues?
In case of an issue, check the LED display for error indicators such as a red light, which may indicate problems like overheating. Verify that all connections are secure and reset the BMS via the switch. Additionally, use RS485 software for in-depth diagnostics and troubleshooting.
Redway Battery’s customer support is available to assist with firmware updates and cell balancing if needed.
| Issue | Symptom | Solution |
|---|---|---|
| No Power | LED Off | Check Fuse/Switch |
| Alarm | Red Light | Inspect Temp/Voltage |
| Slow Charge | Low Current | Verify Inverter Match |
Why Partner with China Suppliers?
China-based manufacturers like Redway Battery offer significant advantages, such as cost-effective production and proximity to supply chains, which reduces lead times by up to 50%. OEM flexibility allows for the creation of customized solutions that meet specific client needs.
Redway Battery holds ISO/CE certifications, ensuring high-quality products for wholesale distribution and global exports.
Conclusion
Rack lithium batteries offer unmatched efficiency and safety for energy storage solutions. To maximize performance, prioritize LiFePO4 batteries with built-in BMS protection and choose scalable 51.2V models for your applications. Partner with experienced OEM manufacturers like Redway Battery to receive custom, high-quality solutions that suit your energy needs. Ensure to audit your setup periodically, schedule routine checks, and source from certified suppliers for optimal return on investment.
FAQs
What voltage are rack lithium batteries?
Rack lithium batteries typically operate at a nominal voltage of 48V or 51.2V, which is compatible with solar inverters and UPS systems.
Can I parallel multiple racks?
Yes, up to 16 units can be connected in parallel using RS485 or CAN communication for synchronization and balanced performance.
How long do they last?
Rack lithium batteries typically last for over 6000 cycles at 90% DOD, equating to 10-15 years of reliable daily use.
Are they safe for indoor use?
Yes, with integrated BMS protections and an IP20 rating, rack lithium batteries are safe for indoor installation. Ensure adequate ventilation during operation.
Does Redway offer customization?
Yes, Redway Battery offers full OEM/ODM customization for battery capacity, communication ports, and branding to meet your specific needs.
