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-5113

APC SMART-UPS SU2000XL UPS High Performance Replacement Battery Set 50.64 lb

23% off
New arrival
Sale price $216.99 USD Regular price $281.99
Shipping calculated at checkout.
Comes with 4 SigmasTek SP12-18HR batteries, 12V 18AH each
High rate discharge optimizes performance for UPS units
Sealed lead acid, valve regulated, and spill-proof for safety
Certified by U.L. and CE for reliable quality assurance
1-year warranty and factory fresh for dependable use
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 | 18 Ah

Terminal Type

Nut & Bolt

Replacement Battery Set for APC SMART-UPS SU2000XL - SigmasTek SP12-18HR (Compatible)

Maintain peak protection for your APC SMART-UPS SU2000XL with this heavy-duty replacement UPS battery set. Engineered for superior performance and reliability, the SigmasTek SP12-18HR batteries provide the high-rate discharge capacity and durable construction required for mission-critical UPS applications. Trust this kit to keep your SU2000XL delivering clean power and uninterrupted operation when it counts most.

Key Specifications

  • Battery set: 4 x SigmasTek SP12-18HR
  • Voltage: 12 Volts
  • Capacity: 18 AH (amp-hours)
  • Terminal type: Nut & Bolt
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Features: Low Self-discharge
  • Durability: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatibility: Replacement batteries for APC SMART-UPS SU2000XL

Benefits

These replacement batteries deliver reliable, high-current performance for UPS systems that demand fast-response power delivery. The high rate discharge design supports short-duration high-power events, making these batteries ideal for the SU2000XL when rapid support is required. As a high-performance UPS battery option, they offer consistent output and dependable service life, classifying them as a long-lasting battery solution for regular maintenance cycles.

Valve-regulated, spill-proof construction reduces maintenance overhead and makes units safer to handle during installation. Low self-discharge preserves stored energy during extended periods of inactivity so your UPS remains ready. High vibration resistance helps maintain performance in installations subject to mechanical stress. Certified to U.L. and CE standards, these batteries combine safety and quality in one ready-to-install package.

Suitable for UPS units, emergency power systems, and battery-powered tools requiring dependable short-burst output, these SigmasTek batteries are factory fresh and tested by knowledgeable technicians to meet or exceed OEM standards. Please reuse your original cables and hardware from the APC SMART-UPS SU2000XL when installing this replacement battery set.

Protect critical equipment with a proven replacement UPS battery set for your APC SMART-UPS SU2000XL. Order now to secure reliable runtime and fast shipping on in-stock inventory—buy with confidence today.

Technical Specifications

Voltage12 Volts
Amp Hours18 Ah
Terminal TypeNut & Bolt
Length (in.)7.13
Width (in.)3.0
Height (in.)6.59
Weight (lb.)50.6

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.