Description
The PM-LV4850-3U is a high-performance 48V 50Ah lithium battery designed for industrial and commercial energy storage. Built with LiFePO4 chemistry, this 3U rack-mount unit delivers 2.4kWh of energy, exceptional cycle life, and robust safety features. As a leading lithium battery manufacturer, we offer customizable OEM solutions to meet diverse power needs.
Key Features
Longevity & Reliability: With a design life of 20 years and >8,000 cycles at 80% DOD, this lithium battery ensures unmatched durability. The integrated JBD BMS and IP21-rated metal shell provide advanced protection against overcurrent, temperature extremes, and physical damage.
Scalability: Support for up to 32 parallel connections enables seamless system expansion, ideal for large-scale energy storage.
Smart Integration: RS485 and CAN-bus communications ensure compatibility with inverters like Deye, Victron, and Growatt. Optional upgrades include Bluetooth, WiFi, and self-heating for enhanced monitoring and cold-weather performance.
Product Description
The PM-LV4850-3U combines compact design (440x440x136mm, ~23kg) with industrial-grade performance. Its M6 terminals and built-in circuit breaker simplify installation, while the LCD display offers real-time status updates. Perfect for UPS systems, renewable energy storage, and OEM applications, this battery meets certifications including UL 1973, IEC 62619, and UN38.3.
Technical Advantages
High Efficiency: Operates across a wide temperature range (-20¡ãC to 60¡ãC) with minimal capacity loss.
Safety First: LiFePO4 chemistry reduces thermal runaway risks, and the metal casing enhances structural integrity.
Customization: As a dedicated lithium battery manufacturer, we support tailored OEM configurations, including shell colors, communication protocols, and additional features like 4G or GPS tracking.
The 48V 50Ah 2.5kWh Rack Battery 3U is a compact, high-performance lithium iron phosphate (LiFePO4) energy storage solution designed for industrial, commercial, and residential applications. Its 3U rack-mount form factor, long cycle life exceeding 8,000 cycles, and advanced Battery Management System (BMS) make it ideal for solar storage, telecom backup, UPS systems, and scalable energy solutions.
How Does the 48V 50Ah 2.5kWh Rack Battery 3U Work?
This battery consists of 16 LiFePO4 cells connected in series to achieve a nominal voltage of 48V and a capacity of 50Ah, delivering approximately 2.5kWh of usable energy. The integrated smart BMS continuously monitors cell voltage, current, and temperature, balancing cells to optimize performance and prevent overcharge, over-discharge, and thermal events. Its modular design supports parallel connections for capacity expansion, while the 3U height (5.25 inches) fits standard 19-inch server racks, minimizing space requirements in data centers and renewable energy systems.
What Are the Key Specifications of the 48V 50Ah 2.5kWh Rack Battery?
| Feature | Specification |
|---|---|
| Nominal Voltage | 48V |
| Capacity | 50Ah |
| Nominal Energy | 2.5kWh |
| Chemistry | Lithium Iron Phosphate (LiFePO4) |
| Dimensions | 440 x 440 x 136 mm (3U height) |
| Weight | 20–24 kg |
| Cycle Life | >8,000 cycles at 60% Depth of Discharge (DoD) |
| Operating Voltage Range | 40V – 58.4V |
| Charge/Discharge Current | 50A continuous |
| Efficiency | ≥95% round-trip efficiency |
| Communication | RS485, CAN-bus, optional Bluetooth/WiFi |
| Protection Rating | IP20 |
Which Applications Benefit Most from the 48V 50Ah Rack Battery?
This battery is widely used in:
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Solar energy storage systems for residential and commercial installations
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Uninterruptible Power Supply (UPS) systems for data centers and critical infrastructure
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Telecom base stations requiring reliable backup power
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Microgrids and off-grid energy systems for remote or industrial applications
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Electric vehicle charging stations and other power-intensive environments
Its modularity and scalability make it a versatile solution across various sectors.
Why Is LiFePO4 Chemistry Preferred for This Rack Battery?
LiFePO4 chemistry offers superior thermal stability and safety compared to other lithium-ion chemistries. It provides a flat discharge voltage curve, ensuring consistent power output throughout the discharge cycle. LiFePO4 batteries have a longer cycle life—often exceeding 8,000 cycles at 60% DoD—and operate efficiently over a wide temperature range (-20°C to 60°C). Additionally, they are environmentally friendly, free from cobalt and toxic heavy metals.
How Is the 3U Rack Form Factor Advantageous for Installation?
The 3U rack height (approximately 5.25 inches) fits standard 19-inch server racks, allowing easy integration into existing infrastructure without occupying excessive space. This form factor simplifies cable management and improves airflow for thermal regulation. Multiple units can be stacked vertically to increase capacity while maintaining a compact footprint.
When Should You Consider Upgrading to a 48V 50Ah 2.5kWh Rack Battery?
Consider upgrading when your current batteries show signs of capacity degradation, increased maintenance costs, or when expanding your energy storage needs. This battery’s long cycle life and smart BMS offer cost-effective, reliable performance for 8–10 years or more, making it a future-proof investment.
Where Is the Ideal Environment for Installing This Rack Battery?
Install the battery in a temperature-controlled, well-ventilated environment maintaining ambient temperatures between 15°C and 25°C. Ensure clearance around the rack for airflow and easy maintenance access. Avoid exposure to moisture, direct sunlight, and corrosive atmospheres. Proper grounding and adherence to electrical safety standards are essential.
Does the Battery Support Parallel Expansion and Communication Protocols?
Yes, the battery supports up to 16 units connected in parallel via RS485 or CAN-bus communication, enabling flexible capacity scaling. Optional Bluetooth and WiFi modules allow remote monitoring and diagnostics, facilitating proactive maintenance and system optimization.
Has Heated Battery Integrated Advanced Safety Features in This Model?
Heated Battery equips this rack battery with a sophisticated Smart BMS that provides protection against overcharge, over-discharge, overcurrent, short circuits, and thermal runaway. The battery also features flame-retardant casing, circuit breakers, and real-time monitoring via LCD display or remote communication, ensuring operational safety and reliability.
Can This Battery Operate Efficiently in Extreme Temperatures?
The battery supports charging between 0°C and 55°C and discharging from -20°C to 60°C. Its thermal management system balances cell temperatures and triggers protective measures if overheating occurs. Optional self-heating modules are available for cold climate operation.
How Does the 48V 50Ah Rack Battery Compare to Lead-Acid Alternatives?
| Feature | 48V 50Ah LiFePO4 Battery | Lead-Acid Battery Equivalent |
|---|---|---|
| Cycle Life | >8,000 cycles | 500–1,000 cycles |
| Weight | 20–24 kg | 40–60 kg |
| Depth of Discharge | Up to 80–90% | 50% |
| Maintenance | Minimal | Frequent electrolyte checks |
| Efficiency | ≥95% | 70–85% |
| Safety | High thermal stability | Risk of acid leaks, thermal runaway |
This results in longer lifespan, lighter weight, and reduced maintenance costs.
What Are the Environmental Benefits of Using This Battery?
LiFePO4 chemistry is free from toxic heavy metals, reducing environmental hazards during disposal. Its long cycle life and high efficiency lower waste and energy consumption over time. Modular scalability supports integration with renewable energy systems, promoting sustainable power solutions.
