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SigmasTek  |  SKU: BW-16633

Access 12581 High Performance Replacement Battery 12.66 lb

21% off
Sale price $55.99 USD Regular price $70.99
Shipping calculated at checkout.
Absorbent Glass Mat (AGM) Technology for enhanced durability
Maintenance-Free and Spill Proof design for worry-free use
U.L. Recognized and CE Certified for guaranteed safety
Brand New, Factory Fresh for reliable performance
1 Year Warranty ensures long-term peace of mind
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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.

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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 18 Ah

Terminal Type

Nut & Bolt

Access 12581 Battery Replacement — Compatible with Access 12581

Upgrade your device with a reliable, high-quality replacement battery compatible with the Access 12581 model. This Access 12581 replacement battery delivers dependable performance, consistent power delivery, and industry-standard safety. Engineered with Absorbent Glass Mat (AGM) technology, this 12 Volts 18 Ah sealed lead acid (SLA) battery offers maintenance-free operation and dependable reserve capacity — a true high-performance battery that restores runtime and reliability to your equipment. Whether you need a spare for emergency power, backup for UPS systems, or reliable power for mobility and medical devices, this long-lasting battery meets or exceeds OEM SLA battery specifications.

Key Specifications

  • Compatible Model: Access 12581
  • Battery Type: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Voltage: 12 Volts
  • Capacity: 18 Ah
  • Terminal Type: Nut & Bolt
  • Design: Maintenance-Free with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Brand: SigmasTek

Benefits

This Access 12581 replacement battery is built for durability and consistent long-term performance. AGM construction provides robust internal support and vibration resistance, making it ideal for frequent cycling and demanding environments. As a maintenance-free design with spill-proof construction, you get safe, hassle-free installation without the need to top up electrolyte — a major convenience for critical applications and field service.

Expect a long-lasting battery life profile that delivers stable voltage output and predictable runtime. The combination of certified safety (U.L. recognized and CE certified) and factory-fresh condition ensures you receive a high-performance battery that meets strict quality standards. Typical applications include UPS backup systems, emergency lighting and alarm systems, mobility scooters, medical devices, security systems, power tools, and general-purpose standby power where reliability matters most.

The Nut & Bolt terminal offers secure connections for installations where vibration or movement is a factor, and the 12V 18Ah capacity gives you extended runtime compared to smaller replacements. This product is an excellent choice for users seeking a reliable replacement battery that restores OEM-level performance and offers a cost-effective path to longer service life.

Ready to replace your Access 12581? Order this trustworthy, high-performance replacement battery today and regain dependable power. Click to buy now and enjoy a 1 year warranty and fast delivery.

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 : Access 12581 Battery
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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