48V 9Ah UPS Lithium battery 7C high rate discharge for 3KVA UPS

48V 9Ah UPS Lithium Battery 7C high-rate discharge for 3KVA UPS power outup

This 48V 9Ah lithium iron phosphate (LiFePO4) battery is specially designed for UPS backup systems, delivering 460.8Wh of reliable energy. With a compact 2U rack-mount design (311×207×66mm) and lightweight build (only 7.1kg), it offers seamless integration into space-constrained environments while maintaining full compatibility with standard UPS systems.

Engineered for performance and longevity, it supports 7C high-rate discharge (up to 63A peak), making it ideal for high-power applications. Compared to traditional lead-acid batteries, it offers 200% higher energy density, over 5 times the cycle life (>3000 cycles), and weighs just one-third as much.

Model: EG4809A

  • Nominal Voltage: 48V
  • Nominal Capacity: 9Ah
  • Energy: 460.8Wh
  • Self Discharge: <1% per month
  • Recommended UPS Match: ≤3KVA
  • Dimensions (L x W x H): 311 × 207 × 66mm
  • Weight: 7.1kg
SKU: EG-4809A Category: Tag:
Description

48V 9Ah LiFePO4 Lithium UPS Battery 7C High-Rate Discharge Lead-Acid Replacement for 3KVA UPS

The 48V 9Ah UPS Lithium Battery is a high-performance, rack-mountable energy solution designed for 3KVA UPS systems. Engineered with premium LiFePO4 cells, this 48V 9Ah UPS Lithium battery supports 7C high-rate discharge, making it ideal for critical infrastructure where fast response and reliable backup power are essential.

48V9Ah-Lithium-battery-for-UPS

Built for 2U rack-mounted UPS equipment, it is a powerful and compact replacement for traditional lead-acid batteries. Whether you’re running a data center or safeguarding sensitive equipment, this battery delivers fast-switching, long-life power backup you can count on.

Key Features & Advantages

High-Rate Discharge for High-Power UPS
7C discharge rate enables up to 63A continuous output, easily handling surge loads like servers, medical equipment, and communication devices.

A-Class LiFePO4 Cells
Built with All new brandA grade lithium iron phosphate cells for outstanding thermal and chemical stability. Backed by a 10-year warranty, proving our commitment to only using A-grade LiFePO4 cells—lower quality cells would never last this long.

Smart BMS for Total Safety
Advanced BMS protects against overcharge, over-discharge, short-circuit, high temperature, and more.

Compact & Lightweight
Size is about 2/3 that of comparable lead-acid batteries. Weight is about 1/3, making installation easier and saving rack/cabinet space.

Long Cycle Life
Up to 4–5 times longer lifespan than lead-acid, offering over 10 years calendar life with minimal maintenance

Intelligent Communication
Equipped with RS232 and RS485 for system integration, remote control, and monitoring.

Specifications:

ElectricalParameters

(25°C)

Rated   Voltage 51.2V
Rated   Capacity (C5) 9Ah
Energy 460.8Wh
Months Self Discharge <1%
Charge Efficiency 99.5%@ 1C
Discharge Efficiency 96-99%@ 7C
Terminal type Anderson SB50
Internal resistance (Fully charged, 25°C) 150mΩ
Cycle life >3000 cycles @ 1C   100%D.O.D
Capacity   affected by temperature 40°C 100%
25°C 100%
0°C 90%
-10°C 75%
Nominal operating temperature 25°C± 3°C (77°F± 5°F)
Operating temperature range Discharge – 20°C~ 60°C (-4°F ~ 140°F)
Charge 0°C~ 45°C (32°F ~ 113°F)
Storage 0°C~ 40°C (32°F ~ 104°F)
Water Dust Resistance IP21
Charge Voltage 54V
Equalization Turn-on Voltage 51.8V
Charge Current 9A
Backup time 8-15 min
Charge Cut off Voltage 54V
Max   Continuous Discharge Current 63A
BMS Over Temperature Protection 65±5℃
Over discharge   Protection Voltage 39V
Over discharge   Recovery Voltage 40.5V
Short Circuit Protection YES
Matched UPS ≤3KVA
Cell in Series and Parallel 15S3P
Mechanical Cells IFR26650-3000mAh
Container SPCC

Datasheet Download

Three Core Advantages of the 48V 9Ah UPS Lithium Battery

1. Ultra-Lightweight Design

With a compact size of just 311×207×66mm, this 48V 9Ah UPS lithium battery occupies only two-thirds the volume of traditional lead-acid batteries. Weighing only 7.1kg—about one-third of a comparable lead-acid unit—it’s easy to install in racks or tight spaces. Built with a durable SPCC metal enclosure and IP21 protection rating, it’s ready for efficient and secure deployment.

2. 7C High-Rate Discharge – Reliable Backup for Critical Loads

Delivers up to 63A peak discharge current, ensuring seamless operation during power outages for up to 3KVA UPS systems.
Provides 8–15 minutes of runtime, ideal for emergency backup.
Equipped with an intelligent BMS offering five-layer protection: overcharge, over-discharge, over-temperature, over-current, and short-circuit.

3. 10-Year Service Life – The Ultimate Replacement for Lead-Acid

Offers over 3,000 charge/discharge cycles—4 to 5 times that of lead-acid alternatives.
With a calendar life of over 10 years, this 48V 9Ah UPS lithium battery reduces total cost of ownership by up to 60%.
Less than 1% monthly self-discharge, ensuring long-term shelf stability.

Typical UPS Application Scenarios

This 48V 9Ah UPS Lithium Battery is an excellent power source for:

  • Data Centers & Server Rooms – instant switch-over, stable power under surge load.
  • Bank Branches & Financial Systems – no delay in trading systems, no risk of data loss.
  • ICU & Medical Equipment – critical backup during power loss, stable in cold environments.
  • Precision Instruments & Labs – quiet, stable, and compact for sensitive operations.
  • Security & Surveillance Systems – extended backup to prevent downtime during blackouts.
  • 5G Communication Base Stations – high power density and temperature endurance.

48V9Ah-UPS-liFePO4-battery

The 48V 9Ah UPS Lithium Battery Performance Test

38.4v-5Ah-lifepo4-lithium-battery

The Benefits of Replace Lead-Acid with LiFePO4 48V 9Ah UPS Lithium battery

Item Parameter Advantages Over Lead-Acid
Nominal Voltage 48V Compatible with standard UPS systems
Nominal Capacity 9Ah (432Wh energy) 200% higher energy density in the same volume
Discharge Capability 7C high-rate discharge (63A peak) Lead-acid supports only 0.5~1C
Weight 7.1kg Lead-acid battery ≈ 20kg
Dimensions 311×207×66mm (2U standard) 33% smaller volume
Cycle Life >3000 cycles Lead-acid battery ≈ 500 cycles

Looking for a reliable UPS battery that combines high performance with space-saving design?

The 48V 9Ah UPS Lithium Battery is built with advanced LiFePO4 cells, delivering 7C high-rate discharge and intelligent BMS protection in a compact 2U form factor. It’s purpose-built for demanding environments like data centers, hospitals, and IT systems—where every inch of rack space and every second of uptime matters.

Forget the bulk and short lifespan of traditional lead-acid batteries. This isn’t an inflated spec sheet—it’s a proven, field-ready power solution. The 48V 9Ah LiFePO4 UPS battery offers superior safety, significantly longer cycle life, and dependable high-current performance when it counts.

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