Welcome to our store. Your trusted source for batteries and power solutions. Learn more

For support or quotes: sales@batteryweb.com

WELCOME5
SigmasTek  |  SKU: BW-4585

APC SMART-UPS RT SURT6000XLT UPS High Performance Replacement Battery Set 56.05 lb

19% off
New arrival
Sale price $277.99 USD Regular price $341.99
Shipping calculated at checkout.
Replacement set with 16 SigmasTek SP12-5.5HR batteries (12V 5.5AH)
Designed for high rate discharge UPS applications
Low self-discharge extends battery life and reliability
High vibration resistance ensures durability in demanding conditions
Expertly tested to exceed OEM standards
In stock

— Ready to ship immediately

Free shipping

Visa Mastercard American Express PayPal Apple Pay Google Pay Shop Pay Discover Klarna Afterpay Stripe

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.

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

Product & Solutions Expert

✉ sales@batteryweb.com

🔹 10+ Years Battery Experience 🔹 Fast & Accurate Identification

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

🔹 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: 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

Replacement Battery Set for APC SMART-UPS RT SURT6000XLT (SigmasTek SP12-5.5HR x16)

Revitalize your APC SMART-UPS RT SURT6000XLT with this complete replacement UPS battery kit. The set includes 16 SigmasTek SP12-5.5HR batteries (12 Volts, 5.5 AH) engineered to match the performance and reliability of your original UPS battery pack. These brand new, factory-fresh batteries are suited for high-demand scenarios and provide dependable backup power when you need it most. Be sure to reuse all original cables and hardware from your current configuration to correctly install the new batteries.

Key Specifications

  • Compatible UPS Model: APC SMART-UPS RT SURT6000XLT
  • Quantity: 16 batteries
  • Battery Model: SigmasTek SP12-5.5HR
  • Voltage: 12 Volts
  • Capacity: 5.5 AH
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Features: Low Self-discharge; High Vibration Resistance; Superior Performance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year

Benefits

This replacement UPS battery set is a high-performance UPS battery solution that restores reliable runtime to your SMART-UPS RT SURT6000XLT. The high rate discharge design enables strong, short-duration power delivery for essential loads during outages. Valve-regulated, spill-proof construction reduces maintenance and enhances safety, while low self-discharge prolongs readiness and extends usable life.

Durability features like high vibration resistance and recognized certifications (U.L., CE) ensure that this kit performs under challenging conditions, providing a long-lasting battery replacement that supports servers, network infrastructure, and critical systems. Typical applications include uninterruptible power supply (UPS) units, emergency power supplies, and battery-powered tools that require dependable bursts of energy. Our team tests every battery set to meet or exceed OEM specifications, so you can trust consistent results.

If you need help confirming compatibility or installing your replacement batteries for the APC SMART-UPS RT SURT6000XLT, our customer service representatives are ready to assist at . Orders for in-stock items usually ship within 24 hours to minimize downtime and restore protection quickly.

Secure your replacement UPS battery set for APC SMART-UPS RT SURT6000XLT today and get back to reliable, long-lasting battery performance that keeps your critical systems running.

Technical Specifications

Voltage12 Volts
Amp Hours5.5 Ah
Terminal TypeF2
Length (in.)3.54
Width (in.)2.76
Height (in.)3.98
Weight (lb.)56.0

Product Highlights

  • Brand Replacement : APC SMART-UPS
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • 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.