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SigmasTek  |  SKU: BW-8016

Ultracell UL18-12 High Performance Lawn Mower Replacement Battery 12.66 lb

44% off
New arrival
Sale price $34.75 USD Regular price $61.78
Shipping calculated at checkout.
Factory fresh Ultracell UL18-12 battery ensures reliable performance
100% compatible with original Ultracell UL18-12 Lawn Mower model
Absorbent Glass Mat (AGM) technology for enhanced durability
Valve regulated, spill-proof design for safe and maintenance-free use
Backed by a 1-year warranty and guaranteed performance
In stock

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Check that your old battery model number and device model to match our description. This makes sure they work together.


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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

Ultracell UL18-12 Lawn Mower Replacement Battery (Ultracell UL18-12)

Replace a tired battery in your Ultracell UL18-12 with this brand new Ultracell UL18-12 replacement battery that emphasizes compatibility, safety, and consistent deep-cycle performance. Engineered as a 100% compatible swap for the Ultracell UL18-12, this battery offers the reliable power delivery needed for steady lawn mower operation and dependable runtime under regular use.

Key Specifications

  • Brand: Ultracell (replacement Ultracell UL18-12 battery)
  • Compatible Model: Ultracell UL18-12
  • Required Quantity for Unit: 1 battery (SP12-18 NB)
  • Model Number: SP12-18 NB
  • Voltage: 12 Volts
  • Capacity: 18 Ah
  • Terminal Type: Nut & Bolt
  • Battery Technology: Absorbent Glass Mat (AGM)
  • Usage Type: Designed for Deep Cycle Usage
  • Construction: Valve Regulated, Spill Proof
  • Performance/Design Note: Power/Volume Ratio Yielding Unrivaled Energy Density
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatibility Note: 100% compatible with Ultracell UL18-12; reuse existing cables and hardware to connect

Benefits

This replacement battery offers strong durability thanks to AGM construction and a valve-regulated, spill-proof design that minimizes maintenance and maximizes safety. Built for deep-cycle service, it endures the repeated charge and discharge cycles common to lawn mower operation while providing stable voltage and reliable runtime.

As a high-performance battery option, the Ultracell UL18-12 replacement balances energy density with compact form so you get effective runtime without sacrificing space. Its certifications (U.L. recognized and CE certified) and factory-fresh condition offer peace of mind for safe, consistent operation.

This long-lasting battery is well-suited not only for lawn mower use but also for backup and portable power roles including UPS systems, emergency backup power, scooters, and other small electric equipment where dependable power and deep-cycle endurance are required.

Ready to get reliable power back in your Ultracell UL18-12? Order this Ultracell UL18-12 replacement battery today for a high-performance, long-lasting battery backed by a 1 year warranty and fast shipping.

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 : Ultracell UL18-12 Lawn
  • Manufacturer: SigmasTek
  • Product Type: Home Power Backup
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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