Wholesale 19 Inch Energy Storage 48V Lithium Ion Battery Manufacturers & Supplier

High-Capacity, Modular, and Ultra-Safe LiFePO4 Server Rack Solutions Engineered for Telecom, C&I ESS, Smart Grids, and Industrial Automation Systems Globally.

Proven Engineering Expertise Since 2009

Hangzhou LIAO Technology Co., Ltd. is a pioneer in manufacturing high-performance Lithium Iron Phosphate (LiFePO4) batteries, trusted across 20+ countries.

15+
Years R&D Experience
2800+
Cycles (1C / 100% DOD)
500+
Custom Projects Delivered
-40℃
To 85℃ Wide Discharge Temp

Best Safety Architecture

Our custom prismatic cells are designed using chemically stable LiFePO4 crystals that will not burn, explode, or run away thermal-wise even under aggressive mechanical nail penetration or acupuncture tests.

19-Inch Rack Standardization

Fully compliant with international server rack layouts. Easily retrofits existing standard datacenter, telecom, and enterprise server enclosures. Allows rapid scale-up and hot-swappable installation.

Intelligent BMS Telemetry

Every module is integrated with an advanced Smart BMS providing real-time SOC (State of Charge), SOH (State of Health), protection against over-voltage, over-current, extreme temperatures, and dynamic cell-balancing.

Global B2B Procurement Demands: 19-Inch 48V Lithium Systems

An analysis of why B2B buyers, EPC contractors, and infrastructure architects are transitioning from lead-acid (VRLA) to 19" rack-mounted 48V LFP batteries.

In the landscape of modern infrastructure, scalability and spatial efficiency are paramount. The standardization of the 19-inch rack enclosure has made it the structural foundation for global telecommunications, data centers, micro-grids, and server arrays. By housing backup power systems in this exact form factor, procurement officers can optimize floor space, reduce thermal footprints, and streamline cabling.

A primary driver for selecting 48V Lithium-Ion (specifically LiFePO4) chemistry over standard lead-acid batteries is the profound reduction in Total Cost of Ownership (TCO). While the initial capital expenditure of lithium iron phosphate is higher, it delivers more than 10 times the cycle life of traditional AGM or VRLA cells. Standard lead-acid units run for 300–500 cycles at 50% Depth of Discharge (DOD), whereas LIAO's 48V battery modules yield over 2800+ full cycles at 100% DOD (1C rate), making them the most economically viable choice for decadal operations.

Furthermore, 48V DC is recognized as the safety threshold voltage limit for telecommunication network power supply equipment. It eliminates the need for bulky galvanic isolating transformers, simplifies electrical codes for installation teams, and aligns seamlessly with rectifier inputs used by worldwide cellular carriers and ISPs.

Performance Indicator LIAO 19" 48V LiFePO4 Module Conventional VRLA Lead-Acid Battery Information Gain & B2B Value
Cycle Life (100% DOD) 2800 - 6000 Cycles 200 - 500 Cycles Reduces replacement cycles by up to 85%
Energy Density (Volumetric) 110 - 145 Wh/L 30 - 50 Wh/L Saves 70% physical cabinet footprint
Weight Ratio Lightweight (~1/3 of Lead-Acid) Heavy (~3x LFP) Lowers shipping costs and floor load stresses
Smart Telemetry & BMS Fully Integrated (RS485/CAN/Modbus) None (Requires external sensors) Enables remote central network monitoring
Thermal Range Operating -40℃ to +85℃ (Extended performance) 15℃ to 25℃ (Efficiency drops sharply outside) Saves HVAC operating costs in harsh environments

Macro Industry Solutions & Application Vectors

Discover how our bespoke and standardized battery architectures serve global commercial, industrial, and specialized transportation sectors.

Golf Cart Solution

Golf Carts & Utility Vehicles

Next-generation LiFePO4 packs designed to power fleet golf carts through complex terrains. Features deep discharge tolerance, rapid charging cycles, and no voltage sag under high current demands.

Caravan Mover Solution

Caravan Movers & RVs

Quiet, emission-free auxiliary storage solutions. Relplaces conventional toxic heavy lead-acid options to streamline installation weight limits, extending wilderness camping autonomy without standard grid power.

Industrial Vehicles AGV

Industrial Mobility & AGVs

Engineered for high-rate continuous duty forklift fleets, warehouse automation systems, and AGVs. Delivers consistent capacity output even under severe vibration and industrial environment stresses.

E-Boat Battery Solution

Electric Marine Propulsion

Durable, water-resistant lithium battery packs built to provide stable propulsion power for eco-boats. Designed with zero environmental leakage potential and robust resistance to saline environment corrosions.

Strategic Telecom Tower Solutions

For remote telecommunication towers (BTS/BSC) located in areas with weak or unstable grids, our China High Voltage 480V LiFePO4 Battery Systems and classic 48V Rack-Mounted packs guarantee uninterrupted operation. Combined with intelligent heating systems for cold zones and smart BMS connectivity, these systems protect against power loss while eliminating fuel usage in backup diesel generators.

Technological Process & Factory Tour

Take a step inside our ISO-certified facilities to see how we maintain strict quality control from raw materials to final packaging.

LIAO Factory Reception

Factory Reception

Exhibition Area

Exhibition Showroom

Office Area

Engineering & Operations Office

Production Entrance

Production Workshop Entrance

Pack Assembly Area

Module Pack Assembly Line

Capacity Sorting

Prismatic Cell Capacity Sorting

Laser Welding

Automated Laser Welding System

Die Cutting

Die Cutting Process

Manufacturing Process Highlights

01. Cell Capacity Grading

We grade all cell lots on capacity, internal resistance, and voltage curve matching before module build, minimizing performance variations and extending the pack lifespan.

02. Advanced Laser Welding

We weld terminals using a multi-axis CNC laser welding machine to ensure connection resistance is kept low and to guard against performance losses caused by standard thermal soldering methods.

03. Strict Double Aging Test

Every completed 19-inch battery pack undergoes rigorous charging and discharging aging processes, verifying heat generation limits and monitoring cell behavior under load before dispatch.

International Certifications & Quality Control

All factory processes and product designs are certified to ISO standard levels, guaranteeing regulatory clearance and absolute reliability.

ISO 9001, 14001, 18001 Systems

ISO Quality Certificate ISO Environmental Certificate ISO Occupational Safety

Strict production management system guaranteeing tracebility and repeatability of cell materials batch to batch.

R&D Patent Certificates

Patent Certificate Patent Layout Patent Document

Independently patented layout designs that optimize cell isolation, reducing thermal chain effects during operational failures.

UN38.3 & CE Test Reports

CE Certificate UN38.3 Testing Report Battery Test Report

Compliance with UN38.3 transport standards ensures safe shipping by sea and air, backed by complete MSDS certificates.

Your Primary Custom Battery Pack Manufacturer in China

LIAO has designed customized LiFePO4 batteries for 15+ years. With a dedicated design team of electrical and mechanical engineers, we work closely with your technical personnel to configure the BMS parameters, module dimensions, and communication protocols your projects require.

  • Custom communication protocols: CAN, RS485, RS232, Modbus, SNMP.
  • Adaptable structure dimensions fitting non-standard cabinet footprints.
  • Broad capacity range configurations: 10Ah up to 500Ah.
Custom Design Engineers

Technical Q&A: B2B Procurement Specifications

Answers to technical questions from engineering managers and procurement officers about 19-inch 48V energy storage systems.

Why is the 48V standard preferred for telecom towers and backup storage over 12V or 24V?
48V systems reduce current flow by four times compared to 12V configurations for the equivalent load wattage. This reduction in current allows installers to use thinner copper cabling, saving significant raw material cost and reducing copper heating losses. Furthermore, 48V falls safely below the 60V DC regulatory threshold, simplifying safety compliance for installation teams.
How does LIAO's low-temperature protection system function in cold environments?
LIAO's low-temperature protection battery pack uses smart BMS sensors that monitor temperature. If cell temperatures drop below 0°C, the BMS blocks standard high-current charging to prevent lithium plating, which can permanently damage cells. Our optional internal heating mats use charge current to warm the cells to safe levels before starting the charging cycle.
What communication protocols are available for remote telemetry?
Our modules support RS485, RS232, and CANbus communication, which interface directly with main industrial hybrid inverters (e.g., Growatt, Victron, Deye, SMA, Studer) and remote SCADA control portals. Users can monitor pack voltages, individual cell voltages, temperature, and cycle counts in real time.
What is the lead time for custom B2B ODM projects?
Standard 19-inch battery pack configuration options can be manufactured and shipped within 3 to 4 weeks. Custom enclosures, non-standard voltages, or bespoke communication setups take 6 to 8 weeks, which covers full schematic drafting, rapid 3D printing of enclosure prototypes, dynamic BMS configuration, and test validation.