For questions, quotes, or help finding the right battery, feel free to email us at sales@batteryweb.com

New collections added! Learn more

🎉 First Order Special 🎉

First-time shoppers get 5% OFF on batteries & accessories!

WELCOME5
Brightway Group  |  SKU: BW-0853

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

Sale price $25.02 USD Regular price $37.53
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


📦🚀 FAST SHIPPING: Usually ships same day if ordered before 2 PM EST

⚠️ Quick Reminder

🔹 Please ensure the original battery model number is listed in our product description and that your device model number matches for compatibility.
🔹 We only supply the batteries shown in the images. Device images are provided for reference only.

📸 Send Your Battery Photo / Unsure? Expert Help

Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.
POST YOUR IMAGE

Battery Care Guide

Battery Usage and Maintenance Guidelines 🔋

Please read the following instructions carefully before using your new battery. Proper adherence will help ensure optimal performance and extended service life.

1. Cordless Phones, PDAs, and Power Tools (NiMH, NiCd, Lithium-Ion) 📱

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Operate the device until the battery reaches approximately 20% capacity.
  • Avoid premature recharging.
  • Do not allow the battery to fully discharge during the initial cycles.

Post-Conditioning

  • Recharge the battery only when necessary.
  • These batteries are capable of approximately 500 charge cycles:
  • Once daily → ~500 days
    Twice daily → ~250 days
    Note: Even a partial recharge is considered a full cycle.

2. Sealed Lead Acid (SLA) Batteries 💡

  • No conditioning required.
  • Maintain the battery in a fully charged state; avoid complete discharge.
  • Capable of 300–400 charge cycles.
  • Expected service life: 2–3 years, depending on usage conditions.

3. Laptop Batteries (Lithium-Ion) 💻

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Charge fully, then discharge to approximately 20% capacity.
  • Avoid complete discharge, as some devices may not detect a fully drained battery.

Post-Conditioning

  • Minimize frequent plugging and unplugging.
  • Allow the battery to discharge moderately at least once per month to maintain optimal performance.
  • Occasional cycling is recommended to sustain battery health.

Professional Recommendation

Adhering to these guidelines will enhance battery longevity and ensure reliable performance.

For further assistance regarding your battery or order, our customer support team is available to provide guidance.

Delivery and Shipping

Everything You Need to Know About Shipping with BatteryWeb (USA)

We know reliable delivery matters when you need power fast. Here’s how BatteryWeb makes shipping easy across the USA:

🚚 Shipping & Delivery

Most orders ship next business day (some products like sealed lead acid may take a little longer).

Same-day shipping available if you order before 11:59 AM (delivery depends on the carrier).

We ship nationwide using FedEx, UPS, USPS, DHL, and regional ground carriers.

Shipping costs are calculated automatically at checkout based on weight, distance, and carrier.

Transit times shown are estimates only (business days, no weekends/holidays).

🌍 Shipping Restrictions

Lithium batteries cannot be shipped by USPS or air. They must go via FedEx Ground, UPS Ground, or DHL Ground.

PO Box deliveries are only available via USPS.

At this time, we do not ship lithium batteries to Puerto Rico. NiMH, NiCd, and Alkaline can be shipped.

📦 Important Notes

Double-check your shipping address! If an incorrect address is used and the order is returned, re-shipping costs are the buyer’s responsibility.

If a product is temporarily out of stock, we’ll notify you right away with the expected restock date—or issue a refund if you prefer.

💲 Currency & Pricing

All prices are shown in USD.

Orders shipped outside the USA may be subject to local taxes, customs fees, or import duties. These are the buyer’s responsibility.

⚡ At BatteryWeb, we’re committed to getting your batteries delivered quickly, safely, and affordably—so you’ll always have the power you need, when you need it.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

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

🔹 Our products are generic replacement parts and are not affiliated with, endorsed by, or manufactured by the original equipment manufacturers (OEMs).


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.


Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.