UPS12-5.5 UPS High Performance Compatible Replacement Battery Set - 3 10.51 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.
UPS12-5.5 UPS High Performance Compatible Replacement Battery Set - 3 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 | 5.5 Ah
Terminal Type
F2
SigmasTek UPS12-5.5 (T2) - Replacement Set of 3 for UPS12-5.5
Maintain uninterrupted protection with this brand new set of 3 SigmasTek UPS12-5.5 (T2) batteries. Engineered for compatibility with UPS12-5.5 systems, this compact replacement UPS battery pack offers reliable performance, low self-discharge, and rugged vibration resistance. Ideal for smaller UPS systems or partial bank replacements, these factory-fresh batteries provide dependable backup when you need it most.
Key Specifications
- Quantity: 3 batteries (set)
- Model: UPS12-5.5 (T2)
- Brand: SigmasTek
- Voltage: 12 Volts
- Capacity: 5.5 AH
- Terminal: F2
- Design: High Rate Discharge Design
- Construction: Valve Regulated Spill Proof Construction
- Feature: Low Self-discharge
- Feature: High Vibration Resistance
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
- Compatibility Note: Requires reuse of existing cables and hardware from your original configuration
Benefits
This replacement UPS battery set emphasizes reliability and longevity. The high-rate discharge design lets your UPS deliver higher power output for short bursts, which is critical for maintaining uptime during sudden outages or high-load events. The valve-regulated, spill-proof build reduces maintenance and enhances safety in confined spaces, while the low self-discharge characteristic helps the batteries stay ready for service after storage. High vibration resistance makes these batteries suitable for installations subject to movement or mechanical stress.
Use cases include Uninterruptible Power Supply (UPS) systems for smaller racks or tower units, emergency power supplies for critical alarms and lighting, and battery-powered tools requiring dependable backup. All units are tested to meet OEM-level performance and come with a 1 year warranty for added assurance.
Quick shipping for in-stock items helps you minimize downtime and get your UPS back to full protection quickly.
Secure your replacementUPS12-5.5 (T2) high-performance, long-lasting battery set today—order now to restore dependable backup power to your equipment.
Technical Specifications
Product Highlights
- Brand Replacement : UPS12-5.5 UPS
- 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.




