Liebert Powersure PS-1440RT2-120 UPS High Performance Replacement Battery Set 21.02 lb
— Ready to ship immediately
Check that your old battery model number and device model to match our description. This makes sure they work together.
We ship your order same day if you buy it before 4 PM EST.
Liebert Powersure PS-1440RT2-120 UPS High Performance Replacement Battery Set is backordered and will ship as soon as it is back in stock.
Let customers speak for us
Send Your Battery Photo
Expert Technician 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 BATTERY IMAGE
Product & Solutions Expert
✉ sales@batteryweb.com
Battery Care Tips
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.
Delivery and Shipping
Delivery and Shipping
🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.
Disclaimer
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.
Volts & Amps
12 Volts | 7.5 Ah
Terminal Type
F2
Replacement Battery Set for Liebert Powersure PS-1440RT2-120
This replacement UPS battery set is crafted for use with the Liebert Powersure PS-1440RT2-120 and includes four SigmasTek SP12-7.5HR batteries. If your Powersure UPS needs fresh cells to restore full runtime and reliability, this kit offers a practical, high-performance UPS battery solution. Each battery is brand new, tested, and designed for applications that demand consistent, dependable backup power.
Key Specifications
- Kit includes: 4 x SigmasTek SP12-7.5HR batteries
- Voltage: 12 Volts
- Capacity: 7.5 AH (Amp-hours)
- Terminal type: F2
- Design: High Rate Discharge Design
- Construction: Valve Regulated Spill Proof (VRLA)
- Features: Low Self-discharge, High Vibration Resistance
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
- Compatible UPS model: Liebert Powersure PS-1440RT2-120
Benefits
Expect long service life and reliable performance from this long-lasting battery kit. The high-rate discharge capability is optimized for UPS environments where brief bursts of higher power are required, and the valve regulated, spill-proof design reduces maintenance and enhances safety. Low self-discharge helps preserve stored capacity, making these batteries ready when an outage occurs. Certified to U.L. and CE standards, the SigmasTek cells give you the confidence of quality manufacturing and testing.
Typical uses include uninterruptible power supply (UPS) units, emergency power systems, and battery-powered tools that rely on steady backup energy. Our technical staff thoroughly tests these replacement UPS battery kits to ensure they meet or exceed OEM performance levels. Installation requires retaining and reusing all original cables and hardware from your existing configuration.
If you need assistance selecting the right replacement batteries or guidance during installation, call customer service at or email our support team. We typically ship in-stock orders within 24 hours so you can minimize downtime and restore protection promptly.
Protect your equipment with this high-performance UPS battery replacement for the Liebert Powersure PS-1440RT2-120. Order now to secure a reliable, long-lasting battery solution backed by a 1 year warranty.
Technical Specifications
Product Highlights
- Brand Replacement : Liebert Powersure
- Manufacturer: SigmasTek
- Product Type: UPS Batteries
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.



