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-4371

APC SURT20KRMXLT-1TF10K UPS High Performance Replacement Battery Set 224.2 lb

21% off
New arrival
Sale price $1,059.99 USD Regular price $1,335.99
Shipping calculated at checkout.
Replacement set with 64 SigmasTek SP12-5.5HR batteries (12V 5.5AH) for APC SURT20KRMXLT-1TF10K
High rate discharge batteries designed for peak UPS performance
Valve regulated, spill-proof for safe, leak-free operation
Low self-discharge extends battery lifespan
UL recognized and CE certified for compliance and quality
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 SURT20KRMXLT-1TF10K

Upgrade your APC SURT20KRMXLT-1TF10K with a reliable, high-performance replacement UPS battery set engineered for demanding power environments. This kit delivers consistent compatibility, strong discharge capability and dependable performance when you need it most. Designed for professionals and mission-critical systems, these SigmasTek batteries provide the dependable backup power required to protect servers, network equipment and emergency systems.

Key Specifications

  • Compatible UPS model: APC SURT20KRMXLT-1TF10K
  • Quantity: 64 batteries per set
  • Battery brand: SigmasTek
  • Battery model: SP12-5.5HR
  • Voltage: 12 Volts
  • Capacity: 5.5 AH
  • 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
  • Installation note: Use all existing cables and hardware from original configuration

Benefits

These replacement batteries are built to last, delivering a long-lasting battery solution that helps extend the service life of your APC SURT20KRMXLT-1TF10K UPS. The high rate discharge design makes this a true high-performance UPS battery option for situations requiring elevated power output over short durations. Valve regulated, spill-proof construction and low self-discharge characteristics increase reliability and reduce maintenance needs, while high vibration resistance ensures stable operation in rack-mounted and mobile power systems.

Ideal for uninterruptible power supply (UPS) systems, emergency power supply setups, and battery powered tools that may be integrated with backup systems, this set performs under pressure and protects connected equipment from downtime. Because each battery is brand new and factory fresh, you receive consistent capacity across the full array, improving runtime predictability and system resilience. Our technicians personally test every battery to ensure it meets OEM-level performance and safety standards.

Whether you are a datacenter manager, facilities technician, or IT professional, this replacement UPS battery kit for the APC SURT20KRMXLT-1TF10K is a cost-effective way to restore full backup capability. The product is UL recognized and CE certified to give you peace of mind in regulated environments.

Ready to replace your APC SURT20KRMXLT-1TF10K batteries? Order this high-performance UPS battery set now for a reliable, long-lasting battery upgrade and get your systems protected quickly.

Technical Specifications

Voltage12 Volts
Amp Hours5.5 Ah
Terminal TypeF2
Length (in.)3.54
Width (in.)2.76
Height (in.)3.98
Weight (lb.)224.0

Product Highlights

  • Brand Replacement : APC SURT20KRMXLT-1TF10K
  • 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.