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-13454

Simplex 12V 18Ah High Performance Replacement Battery 12.66 lb

24% off
Sale price $55.99 USD Regular price $73.99
Shipping calculated at checkout.
High performance 12V 18AH SLA battery with NB terminal
VRLA sealed technology for safe operation in any position
Wide operating temperature range for reliable use in various conditions
Meets or exceeds original manufacturer specifications for quality and durability
UL certified for safety and peace of mind
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

Simplex 12V 18AH Replacement Battery — Compatible with Simplex 12V 18AH

Restore power with this Simplex 12V 18AH replacement battery, engineered for reliable performance, durability, and peace of mind. This high-performance battery is a sealed lead-acid (SLA) unit with an NB terminal, designed for high discharge applications and broad temperature tolerance. The Simplex 12V 18AH replacement conforms to original specifications, ensuring you get a long-lasting battery that fits and performs like the OEM part.

Key Specifications

  • Brand / Model: Simplex 12V 18AH replacement battery
  • Chemistry: Valve-Regulated Lead Acid (VRLA) Sealed Battery Technology
  • Certification: UL (Underwriters Laboratories) certified
  • Voltage: 12 V
  • Amp Hours: 18 AH
  • Terminal Type: NB
  • Weight: 12.65 Lbs
  • Dimensions: Length 7.13 In, Width 3 In, Height 6.59 In
  • Package: Package contains 1 battery
  • Warranty: 1-year Warranty
  • Shipping: ETD 3 Business Days; Shipping Methods – UPS Ground and USPS; we ship in 1 business day for all in-stock items

Benefits

  • Durability: Built with VRLA technology for a sealed, maintenance-free design that withstands the rigors of daily use and transportation.
  • Long Life: Designed for steady capacity over many cycles, this long-lasting battery minimizes replacement frequency and service interruptions.
  • High Performance: The Simplex 12V 18AH is created for high discharge demands and reliable power delivery, making it a true high-performance battery for mission-critical systems.
  • Safe Operation: Sealed construction permits operation in virtually any orientation and reduces leak risk, making it suitable near sensitive electronics and populated areas.
  • Versatile Applications: Perfect for UPS backup, emergency lighting, alarm systems, medical devices, telecommunications, and power tools that require a 12V 18AH NB terminal battery.
  • OEM Compatibility: Guaranteed compatibility with the original Simplex part for easy replacement and trouble-free installation.

Don’t wait until power fails—secure a dependable replacement battery today. Order the Simplex 12V 18AH replacement battery now for fast shipping, UL-certified safety, and the reassurance of a 1-year warranty. Click to purchase and get long-lasting, high-performance power.

Technical Specifications

Voltage12 Volts
Amp Hours18 Ah
Terminal TypeNut & Bolt
Length (in.)7.13
Width (in.)3.0
Height (in.)6.59
Weight (lb.)12.65

Product Highlights

  • Brand Replacement : Simplex 12V 18AH
  • Manufacturer: SigmasTek
  • Product Type: SLA 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.