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-5279

APC SMART-UPS SMT SMT1500 UPS Long-Life Replacement Battery Set 25.32 lb

19% off
New arrival
Sale price $113.99 USD Regular price $140.99
Shipping calculated at checkout.
Includes 2 brand new SigmasTek SP12-18HR batteries (12V, 18 AH)
High rate discharge design supports UPS units requiring quick power bursts
Low self-discharge keeps batteries ready for use longer
Certified safety standards including U.L. recognition and CE certification
1-year warranty and factory fresh for reliable replacement power
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

SigmasTek SP12-18HR Replacement Battery Set for APC SMART-UPS SMT1500

Ensure uninterrupted protection for your APC SMART-UPS SMT1500 with this premium replacement UPS battery set. Featuring two SigmasTek SP12-18HR batteries (12 Volts, 18 AH), this high-performance UPS battery option has been designed for the short-term, high-power demands that modern UPS systems require. These brand-new batteries deliver consistent performance, safety, and the long-lasting battery life necessary for mission-critical equipment.

Key Specifications

  • Brand: SigmasTek
  • Model: SP12-18HR (set of 2)
  • Voltage: 12 Volts
  • Capacity: 18 AH
  • Terminal Type: Nut & Bolt
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof
  • Features: Low Self-discharge, High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year
  • Compatibility: APC SMART-UPS SMT1500 (use existing cables and hardware)

Benefits

Optimized for durability and dependable service, this replacement UPS battery set provides the reliability you need for both home office and enterprise environments. The high rate discharge capability ensures the APC SMART-UPS SMT1500 can handle transient high-load events without compromising stability. Valve-regulated, spill-proof construction enhances safety and reduces maintenance concerns, while low self-discharge keeps the batteries ready when stored.

These batteries make a great choice for a variety of applications: uninterruptible power supply units, emergency backup power systems, and battery-powered tools. Their high vibration resistance and quality certifications (U.L. and CE) mean they perform well in variable environments and meet recognized safety standards. The 1-year warranty and factory-testing process give added confidence in performance and longevity.

Installation is straightforward: retain and reuse all original cables and hardware from your SMT1500 to ensure correct connection. Our technical team verifies each set to meet or exceed OEM specifications to restore reliable backup power to your UPS.

Upgrade your APC SMART-UPS SMT1500 with this high-performance, long-lasting battery set today. Buy now for fast shipping and dependable protection when you need it most.

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
  • 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.