48V 28.8Ah LiFePO4 UPS Battery
(2.5kVA Long Backup Module)
Specially designed for long-term, high-rate UPS equipment up to 2.5kVA. This module provides robust backup power for up to 30 minutes and supports seamless parallel expansion of up to 8 units.
UN38.3
UL1973
Up to 30 Min BackupExtended discharge time for critical 2.5kVA loads
Parallel ExpansionScalable capacity: up to 8 packs in parallel
1382.4Wh Massive EnergyPowered by premium IFR26650-3600mAh cells
Smart BMS MonitoringRS232/RS485 communication interfaces
Product Description
Application Scenarios
Product Technology
Full Specifications
External Battery (Long Backup Power)
The CLF Long Backup Power Series UPS Battery Pack is a customized battery pack designed specifically for long-term, high-rate UPS equipment, suitable for long backup power UPS series on the market.
- Extended Backup Time: Supports up to 30 minutes of continuous discharge time to handle prolonged grid failures.
- Simple Expansion: Up to 8 battery packs can be paralleled, effortlessly scaling your energy storage.
- Intelligent BMS: Complete protection against overcharge, over-discharge, over-temperature, over-current, and short circuits.
- Long Lifespan: Ultra-long float charge design offering 4-5 times the life of standard lead-acid batteries, with a calendar life of 10 years or more.
This 48V LiFePO4 UPS battery is designed for 2.5kVA UPS systems and is suitable for data rooms, office IT infrastructure, telecom equipment, security systems, and industrial control applications requiring stable and safe backup power.
Mechanical Dimensions (L×W×H): 415 × 438 × 88.5 mm
| Electrical Specifications | |
|---|---|
| Nominal Voltage | 48V |
| Nominal Capacity | 28.8Ah |
| Power | 1382.4Wh |
| Internal Resistance | ≤ 150 mΩ |
| Self-discharge | < 1% per month |
| Series and Parallel Connection | 8P |
| UPS Compatible | ≤ 2.5KVA |
| Discharge Specifications | |
|---|---|
| Backup Time | 30 minutes |
| Maximum Continuous Discharge Current | 58A |
| Over-discharge Protection Voltage | 39V |
| Over-discharge Recovery Voltage | 40.5V |
| Short Circuit Protection | Yes |
| Communication & Compliance | |
|---|---|
| Communication | RS232/RS485 |
| Certification | UN 38.3/UL1973 |
| Mechanical Specifications | |
|---|---|
| Cell | IFR26650-3600mAh |
| Battery String Count | 15S8P |
| Dimensions (L×W×H) | 415 × 438 × 88 mm |
| Weight | 19.5 Kg |
| Output Terminal | Anderson SB50 |
| Enclosure Material | SPCC |
| IP Rating | IP21 |
| Charging Specifications | |
|---|---|
| Charging Current | 14.4A |
| Charging Voltage | 54V |
| Overcharge Protection Voltage | 54V |
| Overcharge Recovery Voltage | 51.75V |
| Balance Activation Voltage | 51.75V |
| Temperature Specifications | |
|---|---|
| Discharge Temperature | -20 to 60°C |
| Charging Temperature | 0 to 45°C |
| Storage Temperature | -5 to 45°C |
| BMS Over-Temperature Protection | 65 ± 5°C |
| BMS Over-Temperature Protection Recovery | 55 ± 5°C |
Technical Insights & Support
Which specific UPS systems is this 48V 28.8Ah module designed to support?
This high-capacity module is meticulously engineered for long-backup UPS systems up to 2.5kVA. It is the perfect external power bank for telecom base stations, enterprise data rooms, and automated industrial control systems.
How does the 30-minute long backup time benefit my IT infrastructure?
Unlike standard 5-minute built-in batteries, this 1382.4Wh module sustains critical 2.5kVA loads for up to 30 minutes. This extended window guarantees enough time to execute complex server shutdown protocols or bridge the gap until standby diesel generators come online.
How does upgrading to this LiFePO4 module reduce our Total Cost of Ownership (TCO)?
Although the initial investment is higher than lead-acid, this LiFePO4 battery boasts a 10+ year calendar life with zero routine maintenance. Additionally, its 19.5kg lightweight design significantly reduces rack load and cooling costs, lowering the overall TCO by up to 60% over its lifespan.
Is it possible to scale the runtime if our facility expands in the future?
Absolutely. The system features a highly flexible expansion architecture. You can effortlessly connect up to 8 of these 28.8Ah battery packs in parallel, multiplying your total backup duration without replacing the existing UPS unit.
Can our IT team monitor the battery's health remotely?
Yes. The module is equipped with industrial-standard RS232 and RS485 communication interfaces. It seamlessly integrates with your network management cards (NMC) or UPS monitoring software, allowing IT staff to track voltage and temperature in real-time.
How does the Smart BMS handle the thermal output of such a high-capacity battery?
Safety is paramount. The integrated Smart BMS actively monitors individual cell parameters. If the internal temperature approaches the 65°C threshold, the BMS will automatically intervene to prevent overheating, ensuring absolute safety for your critical environments.
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