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48V 12Ah UPS Lithium battery 7C high rate discharge for 4KVA UPS

48V 12Ah Lithium UPS Battery 7C High-Rate Output for 4KVA Systems

This external 48V 12Ah lithium battery is specially designed for 1U rack-mounted high-rate UPS systems up to 4KVA. Featuring premium LiFePO4 cells, compact dimensions (418×438×43mm), and a lightweight 12kg design, it delivers stable performance and efficient power backup for critical applications like data centers, medical equipment, and corporate IT rooms.

Equipped with a smart BMS and RS232/RS485 communication interfaces, the battery offers 7C high-rate discharge, full protection against overcharge, over-discharge, short circuit, and over-temperature. With a long lifespan (10+ years), easy parallel expansion (up to 8 packs), and quick backup time of 8–15 minutes, it’s a reliable upgrade from traditional lead-acid batteries.

Model: EG4812A

Nominal Voltage: 48V
Nominal Capacity: 12Ah
Energy: 576Wh
Self Discharge: <1% per month
Recommended UPS Match: ≤4KVA
Dimensions (L x W x H): 418*438*43mm
Weight: 12kg

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SKU: EG-4812A Category: UPS Lithium battery Tag: UPS Lithium battery

Description

48V 12Ah LiFePO4 Lithium UPS Battery 7C High-Rate Discharge Lead-Acid Replacement for 4KVA UPS

The 48V 12Ah UPS Lithium Battery is a high-performance, rack-mountable energy solution designed for 4KVA UPS systems. Engineered with premium LiFePO4 cells, this 48V 12Ah UPS Lithium battery supports 7C high-rate discharge, making it ideal for critical infrastructure where fast response and reliable backup power are essential.

48V12Ah-Lithium-battery

Built for 1U 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 84A 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		48V
	Rated Capacity (C5)		12Ah
	Energy		576Wh
	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			12A
Backup time			8-15 min
Charge Cut off Voltage			54V
Max Continuous Discharge Current			84A
BMS Over Temperature Protection			65±5℃
Over discharge Protection Voltage			39V
Over discharge Recovery Voltage			40.5V
Short Circuit Protection			YES
Matched UPS			≤4KVA
Cell in Series and Parallel			15S4P
Mechanical		Cells	IFR26650-3000mAh
Mechanical		Container	SPCC

Datasheet Download

Three Core Advantages of the 48V 12Ah UPS Lithium Battery

1. Ultra-Lightweight Design

With a compact size of just 418*438*43mm, this 48V 12Ah UPS lithium battery occupies only two-thirds the volume of traditional lead-acid batteries. Weighing only 12kg—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 84A peak discharge current, ensuring seamless operation during power outages for up to 4KVA 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 12Ah 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 12Ah 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 12Ah UPS Lithium Battery Performance Test

38.4v-5Ah-lifepo4-lithium-battery

Why Replace Lead-Acid Batteries with 48V 12Ah UPS Lithium battery?

the 48V 12Ah UPS Lithium battery offer significant advantages over traditional lead-acid batteries in UPS applications. They are about 2/3 the size and only 1/3 the weight, making them ideal for space-constrained environments like 1U rack-mounted systems.
With a lifespan 4–5 times longer and a calendar life of over 10 years, they drastically reduce maintenance and replacement costs over time.
In addition, 48V 12Ah UPS Lithium battery deliver higher safety, faster charging, and high-rate discharge performance (up to 7C), which lead-acid batteries cannot match. They also feature intelligent battery management systems (BMS) and communication interfaces like RS232/RS485, enhancing real-time monitoring, system reliability, and overall UPS efficiency.

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

The 48V 12Ah UPS Lithium Battery is built with advanced LiFePO4 cells, delivering 7C high-rate discharge and intelligent BMS protection in a compact 1U 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 12Ah LiFePO4 UPS battery offers superior safety, significantly longer cycle life, and dependable high-current performance when it counts.

Ready to upgrade your backup power? Let’s Move!

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Support and Delivery

Product & Packaging Details

Q: Do batteries include protection circuits（BMS) and connectors?
A:Protection: We supply batteries with BMS built in Protection Circuit Modules (PCM).

Connectors: We normally use standard like anderson,M8 lugs,Fast plugs or depends on OEM customer's demends.

Q: Are batteries Grade-A and brand new?
A: Yes, we use 100% brand new, Grade-A cells in all our batteries.

Q: Can you print our logo on the batteries?
A: Yes, we offer free custom logo printing with a minimal MOQ requirement.

Q: What is your standard packaging? Can it be customized?
A: Our standard is a white box per battery. We fully support customized packaging, including carton box and logo design.

Is EGbatt a Lithium Battery manufacturer?

Yes. EGbatt is a manufacturer located in Shenzhen, Guangdong, China. It designs and produces LiFePO4 battery packs for energy storage, electric forklifts, marine applications, golf carts, RVs, and UPS systems.

What is the production lead time?

Based on automated production technology, the current product lead time is 15-25 days.

Which battery cells does EGbatt use?

The company has strategic cooperation agreements with top manufacturers like EVE and REPT, and insists on using A+ tier One lithium iron phosphate cells for its solar batteries.

Which inverters are compatible with EGbatt batteries?

For 48V inverters, compatible brands include Victron Energy, Goodwe, Studer, Solis, LuxPower, and others. For high-voltage three-phase inverters, compatible brands include Atess, Solinteg, SAJ, Goodwe, and Solis.

What is the warranty for EGbatt energy storage batteries?

EGbatt offers dealer customers a 10-year warranty and technical service for its energy storage battery products.

What is Depth of Discharge (DoD)?

DoD describes how much of the battery's capacity has been used. A DoD of 100% means the battery is completely empty, while 0% means it is full.

What is State of Charge (SoC)?

SoC reflects the battery's charge level. A SoC of 100% means the battery is full, and 0% means it is empty.

What is C-rate?

C-rate, or power factor, indicates how quickly a battery can be charged or discharged relative to its capacity. A rating of 1C means the battery can be fully charged or discharged in one hour.

What is the cycle life of a EGbatt Lithium Solar Battery?

The battery uses Lithium Iron Phosphate chemistry and provides a cycle life of over 6,000 cycles at 90% Depth of Discharge, and over 10 years at one cycle per day.

What is the difference between kW and kWh?

kW (kilowatt) is a unit of power, measuring the rate of energy production or consumption. kWh (kilowatt-hour) is a unit of energy, measuring the total amount of work done or energy used over time.

Where can a home battery be installed?

EGbatt home batteries are suitable for both indoor and outdoor installation (depending on the model's protection level) and offer floor-standing or wall-mounted options. Common locations include garages, attics, or under eaves.

How long can a 10kWh Powerwall run home appliances during a power outage?

This depends on the load. As a realistic example, a 10kWh battery could run ten 100-watt light bulbs for 12 hours without recharging.

How many home batteries does my house need?

The number varies based on home size, energy consumption history, and personal goals (like which devices to run during an outage). For most systems, 2 or 3 batteries are installed. A detailed discussion of your needs is recommended for an accurate assessment.

Can I go completely off-grid with solar and batteries?

Yes, it is possible, but it requires careful planning and significant investment. A true off-grid system needs a large enough solar array and sufficient battery storage to sustain your lifestyle. Cost and having an alternative energy source for when solar charging isn't possible are key considerations.

Is EGbatt an online store?

No. EGbatt focuses on building long-term relationships with business partners like battery distributors, solar equipment dealers, and installation contractors worldwide, not direct sales to end consumers.

Compatible Inverter Brand List

EGBATT Battery Compatibility with Inverters

Perfect Matching with Mainstream Hybrid and On-grid Inverters

EGBATT lithium battery systems are tested for seamless compatibility with a wide range of inverter brands across global markets. Whether for residential, commercial, or utility-scale applications, our batteries support multiple communication protocols (CAN/RS485) and work with both low-voltage (40–60V) and high-voltage (100–1500V) inverter platforms.

Low-Voltage System Compatibility (40–60V)
Low-voltage systems typically operate in the 48V-60V range and are widely used in home off/grid-connected solar systems. EGBATT lithium batteries offer seamless compatibility with a wide range of leading inverter brands in this range, including:
Deye, Growatt, GoodWe, ZZPower, Solis, Sinexcel, SRNE, Schneider Electric, Megarevo, AISWEI, SMA, Luxpower, Victron Energy, Afore, Hoymiles, INVT, Sofar, OutBack Power, SolaX Power, tbbpower, Sacolar, Sunsynk, Sosen, SMD Solar, Must, SOROTEC, Sunman, Voltronic Power, SAJ, and more.
High-Voltage System Compatibility (100–1500V)
High-voltage energy storage systems generally operate in the voltage range of 150V-1000V and are adapted to high-power inverters for commercial and industrial energy storage systems (80kWh-200kWh and above). EGBATT high-voltage lithium battery systems are fully compatible with leading inverter brands within this range, including:
Sol-Ark, INVT, Sinexcel, Luxpower, SClinTeg, Shanghai Nenergy, Deye, Growatt, Xina Electric, Hoymiles, Sunsynk, Hopewind, Solis, SOSEN, Megarevo, EcoCod, GoodWe, Sunways, Jingshi Technology, Kehua Tech, AISWEI, KOYOE, Sermatec, Afore, and more.

We offer integration support and testing for most mainstream hybrid and on-grid inverters. Contact EGBATT for compatibility details and custom solutions.