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-1877

UPS12-18 High Performance UPS Replacement Battery Set (16) 202.58 lb

22% off
New arrival
Sale price $823.99 USD Regular price $1,054.99
Shipping calculated at checkout.
Includes 16 brand new SigmasTek UPS12-18 batteries (12V 18 AH)
High rate discharge design for reliable UPS and emergency power
Valve regulated, spill-proof for safe, maintenance-free operation
Low self-discharge and vibration resistance for durability
UL recognized, CE certified, backed by 1 year warranty
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 UPS12-18 (NB) — Compatible with UPS12-18 (NB) UPS Models (16-Pack)

This brand new bulk set of replacement UPS batteries is built specifically for the UPS12-18 (NB) configuration. The package includes 16 SigmasTek UPS12-18 batteries (12 Volts, 18 AH each), ideal for large UPS banks, data center racks, and extended emergency power arrays. Each battery is factory fresh, tested to meet OEM standards, and designed for reliable performance under high-rate discharge conditions.

Key Specifications

  • Model: UPS12-18 (NB)
  • Quantity: Set of 16 batteries
  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 18 AH
  • Terminal Type: Nut & Bolt
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated, Spill Proof Construction
  • Features: Low Self-discharge; High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year
  • Installation Note: Use all existing cables and hardware from original configuration to connect

Benefits

  • Robust Durability: Valve-regulated, spill-proof cases and high vibration resistance protect performance in rack-mounted UPS banks and other demanding installations.
  • Extended Service Life: Low self-discharge helps ensure that each battery remains ready for service, offering reliable backup power when you need it most — a long-lasting battery option for business continuity.
  • Exceptional Power Delivery: The high rate discharge design performs well during peak load events, providing the burst power required by modern UPS systems — a true high-performance UPS battery choice.
  • Certified Safety: U.L. recognition and CE certification provide assurance for deployment in commercial and industrial environments.
  • Scalable for Large Systems: With 16 batteries in the set, this pack is ideal for larger UPS arrays, telecom cabinets, and multi-battery emergency power solutions.
  • Tested & Trusted: Every battery is tested by technical staff to meet or exceed OEM specifications, ensuring dependable integration with UPS12-18 (NB) systems.

Stock up on reliable power: order this 16-pack SigmasTek replacement UPS battery bundle for your UPS12-18 (NB) configuration now. Enjoy fast shipping on in-stock items and the peace of mind that comes with a factory-fresh, high-performance UPS battery backed by a 1 year warranty.

Technical Specifications

Voltage12 Volts
Amp Hours18 Ah
Terminal TypeNut & Bolt
Length (in.)7.13
Width (in.)3.0
Height (in.)6.59
Weight (lb.)202.4

Product Highlights

  • Brand Replacement : UPS12-18 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.