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SigmasTek  |  SKU: BW-16427

Set Of 4 - 12V 18Ah High Performance Replacement Battery Set 50.64 lb

18% off
Sale price $216.99 USD Regular price $264.99
Shipping calculated at checkout.
Meets or exceeds OEM SLA battery specifications for reliable performance
Brand new, factory fresh, high-quality sealed lead acid batteries
100% compatible replacement for your 12V-18AH-HR SLA battery model
Includes one year warranty for peace of mind and durability
UL listed for safety and quality assurance
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

12V-18AH-HR Sealed Lead Acid Replacement Battery — Compatible with 12V-18AH-HR

Upgrade to the 12V-18AH-HR Sealed Lead Acid replacement battery for reliable, maintenance-free power that fits a broad array of applications. This long-lasting battery is supplied brand new and factory fresh, engineered to meet or exceed OEM SLA specifications for the 12V-18AH-HR model. With UL listing and a one-year warranty, this replacement battery offers the trusted safety and performance required for backup systems, emergency power, and everyday devices.

Key Specifications

  • Model: 12V-18AH-HR (Set Of 4 available)
  • Voltage: 12 Volts
  • Capacity: 18 Ah
  • Terminal Type: Nut & Bolt
  • Technology: Sealed Lead Acid (SLA)
  • Design: Maintenance-Free
  • Certifications: UL listed
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Brand Reference: SigmasTek

Benefits

The 12V-18AH-HR replacement battery is built for durability and consistent performance. As a sealed lead acid unit with a maintenance-free design, it eliminates the need for periodic electrolyte checks and reduces the risk of spills and corrosion. This construction supports long-term reliability and extends service life, delivering a long-lasting battery solution for both standby and cycling applications.

As a high-performance battery, it provides steady power output suited to sensitive electronics, UPS systems, and emergency power applications. The nut & bolt terminal configuration ensures secure connections for installations where vibration or movement may otherwise loosen terminals, making it ideal for industrial environments and mobile systems.

Typical uses include uninterruptible power supplies (UPS), alarm and security systems, emergency lighting, medical and telecom equipment, and a variety of portable and stationary tools. The availability of sets (Set Of 4) adds value for systems that require multiple matched batteries, ensuring consistent performance across a bank.

Ready to secure dependable backup power? Purchase your 12V-18AH-HR replacement battery today. With fast shipping, a one-year warranty, UL listing, and the assurance of a high-quality, long-lasting battery from SigmasTek, you can buy with confidence.

Technical Specifications

Voltage12 Volts
Amp Hours18 Ah
Terminal TypeNut & Bolt
Length (in.)7.13
Width (in.)3.0
Height (in.)6.59
Weight (lb.)50.6

Product Highlights

  • Brand Replacement : Set Of 4
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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