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Brightway Group  |  SKU: BW-0853

Liebert PSA1000MT3-120U High Performance Replacement Battery By Bright Way 5.5 lb

15% off
New arrival
$38.99 USD $45.99
Shipping calculated at checkout.
12 Volt, 9 Amp Hour replacement for Liebert PSA1000MT3-120U UPS
F2 terminal for easy and secure installation
Bright Way brand ensures durable, long-lasting power
Maintains UPS reliability during outages
In stock

— Ready to ship immediately
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Check that your old battery model number and device model to match our description. This makes sure they work together.

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Let customers speak for us

from 22 reviews

WORKS GREAT!

Anonymous

Fast shipping and fair pricing. I will look to you for future battery purchases.

Anonymous

It's hard to rate a battery until some time has passed and it either continues functioning as it should of "gives up the ghost." It was not a straight bolt in application. The positive terminal was different than the stock battery and the positive lead from the motorcycle had to be bent in order to attach it to the battery. Otherwise, if the battery gives long service I have no complaints.

Anonymous

Shopping with you is a bit difficult; I had to type in a few words differently before I could find the battery's I was looking for.

Laura J

Excellent Product, timely delivery, love the extra battery life. Would recommend. rk

Robin Keister

Very easy to buy, high confidence that it was legit company. Reviews were good. Price, in the ball park. We'll see when I get battery.

Rob

Thank you for supplying the battery that I wanted. It arrived today in good order. Its specifications are as advertised and after charging, performs as expected.
Thank you for your professional approach to the payment method.
Regards Roy VK4ZQ.

Roy O'Malley

It worked

Mel Light

Finally found a battery that is similar in function to original equipment.

Anonymous

I'm writing this review to express my deep gratitude and appreciation for the quality of services provided to me by the BatteryWeb service team. I visited BatteryWeb to purchase a replacement battery for my Remington R9 razor. The staff was very responsive and I was really impressed with their willingness to help me and make the purchasing process as quick as possible. In particular I greatly appreciate the work of staff member Shane who was friendly and helpful.
In conclusion, I believe that BatteryWeb has excellent service staff who make their customers feel honored and valued.
I wish you all the best.
Sincerely,
Michael

Michael Talianker

this battery was just what I needed.

Robert Jones

Product is exactly as described and arrived quickly

Robert Jones

Great deal for the money.

Linda M.

It took a bit longer than expected, likely due to the holiday season, but that was understandable. So far, the battery seems to be working well!

Linda M.

Easy to purchase

Alberto J.

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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Category

UPS Batteries

Brand Replacement

Brightway Group

Volts & Amps

12 Volts | 9 AH

Terminal Type

F2

Bright Way 12V 9Ah Replacement Battery — Compatible with Liebert PSA1000MT3-120U

Keep your Liebert PSA1000MT3-120U UPS performing at its best with the Bright Way 12V 9Ah replacement UPS battery. This purpose-built unit offers reliable backup power, straightforward installation via its F2 terminal, and the dependable construction you expect from Bright Way. Whether you’re replacing an old battery or proactively upgrading to ensure uninterrupted protection, this long-lasting battery is a dependable choice for your UPS system.

Key Specifications

  • Compatibility: Liebert PSA1000MT3-120U
  • Brand: Bright Way
  • Voltage: 12V
  • Capacity: 9Ah
  • Terminal: F2

Benefits

This Bright Way replacement UPS battery is engineered for high performance and extended life. The 12V 9Ah capacity delivers a dependable power reserve for maintaining critical systems during outages. As a high-performance UPS battery, it provides stable output under load and consistent recharge performance, reducing the risk of unexpected downtime. The sealed lead-acid construction offers robust durability and safe operation in a wide range of environments.

Common applications for this unit include UPS backup for servers and networking gear, emergency power for communication and monitoring equipment, and support for portable tools and devices that rely on sealed batteries. The F2 terminal ensures secure, low-resistance connections, simplifying replacement and reducing maintenance time. Because it’s designed specifically for the Liebert PSA1000MT3-120U, compatibility is assured and installation is straightforward.

Choosing a Bright Way 12V 9Ah replacement UPS battery means investing in a long-lasting battery solution that helps protect your valuable equipment and maintain business continuity. Its blend of reliable chemistry and high-quality manufacturing makes it an ideal option for service technicians and end users seeking dependable backup power.

Don’t wait until a failure interrupts your operations—purchase this Bright Way 12V 9Ah replacement UPS battery for the Liebert PSA1000MT3-120U now and ensure consistent, reliable power protection.

Technical Specifications

Voltage12 Volts
Amp Hours9 AH
Terminal TypeF2
Length (in.)5.94
Width (in.)2.56
Height (in.)3.7
Weight (lb.)5.5

Product Highlights

  • Brand Replacement : Liebert PSA1000MT3-120U
  • Manufacturer: Brightway Group
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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