Welcome to our store. Proudly serving customers across North America for years. Learn more

For support or quotes: sales@batteryweb.com

WELCOME10
SigmasTek  |  SKU: BW-5275

APC SMART-UPS SU1000XL NET UPS High Performance Replacement Battery Set 25.32 lb

21% off
New arrival
Sale price $69.49 USD Regular price $87.77
Shipping calculated at checkout.
Includes 2 brand new SigmasTek SP12-18HR batteries (12V, 18 AH)
High rate discharge design for short bursts of higher power output
Valve regulated, spill-proof construction for safety and reliability
Low self-discharge and high vibration resistance for longer battery life
U.L. recognized, CE certified, and backed by a 1-year warranty
In stock

— Ready to ship immediately


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 SU1000XL NET — SigmasTek SP12-18HR (Compatible with SU1000XL NET)

Keep your APC SMART-UPS SU1000XL NET operating at peak efficiency with this factory-fresh replacement UPS battery set. Specifically designed for dependable compatibility, this SigmasTek kit offers the performance and reliability needed to protect networks, communications gear, and critical electronics from power interruptions. With a focus on tested quality and quick shipment, this replacement UPS battery gets your SU1000XL NET back to full runtime quickly.

Key Specifications

  • Includes: 2 SigmasTek SP12-18HR batteries
  • Voltage: 12 Volts
  • Amp-Hour (Ah): 18 AH
  • Battery Model: SP12-18HR
  • Terminal Type: Nut & Bolt
  • 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: Must use all existing cables and hardware from original configuration
  • Brand: SigmasTek

Benefits

This replacement UPS battery delivers the durability and power density required for the APC SMART-UPS SU1000XL NET. The high rate discharge design supports moments of increased load demand, ensuring your UPS can transfer and sustain critical equipment during outages. Low self-discharge makes these batteries a practical long-lasting battery choice for spares and preventative maintenance programs.

Valve regulated, spill-proof construction reduces installation complications and keeps environments clean, while high vibration resistance and recognized safety certifications (U.L., CE) make this set suitable for a variety of applications. Typical use cases include Uninterruptible Power Supply (UPS) units, emergency power supply systems, and battery-powered tools where dependable short-duration power is needed. Certified, tested, and factory-fresh, these SigmasTek batteries are matched to meet or exceed OEM expectations.

We strive for fast delivery—orders for in-stock items usually ship within 24 hours. If you require help determining fitment or installation guidance for your APC SMART-UPS SU1000XL NET, contact our support team at or e-mail us for assistance.

Protect your equipment with confidence — purchase this high-performance, replacement UPS battery set for the APC SMART-UPS SU1000XL NET today and restore reliable emergency power and runtime to your critical systems.

Technical Specifications

Voltage12 Volts
Amp Hours18 Ah
Terminal TypeNut & Bolt
Length (in.)7.13
Width (in.)3.0
Height (in.)6.59
Weight (lb.)25.3

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
  • 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.