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SigmasTek  |  SKU: BW-12741

Sonnenschein A512/55A High-Performance Replacement Battery 36.03 lb

25% off
Sale price $209.99 USD Regular price $278.99
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Compatible replacement for Sonnenschein A512/55A emergency lighting batteries
Uses advanced Absorbent Glass Mat (AGM) technology for reliable performance
Maintenance-free and spill-proof design ensures safe and hassle-free use
U.L. Recognized and CE Certified for quality and safety assurance
Comes brand new with a 1-year warranty for 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 | 55 AH

Terminal Type

Nut & Bolt

Sonnenschein A512/55A Replacement Battery (Compatible with Sonnenschein A512/55A)

Get a reliable, OEM-compatible replacement battery for the Sonnenschein A512/55A model that delivers consistent performance and dependable service in emergency lighting and backup power systems. This high-performance battery is engineered using Absorbent Glass Mat (AGM) technology to provide maintenance-free, spill-proof operation and meet the demanding needs of critical power applications. If you're searching for a long-lasting battery that ensures system readiness, the Sonnenschein A512/55A replacement is built to exceed expectations.

Key Specifications

  • Compatible Model: Sonnenschein A512/55A
  • Brand: SigmasTek
  • Technology: Absorbent Glass Mat (AGM)
  • Design: Maintenance-Free
  • Construction: Spill Proof
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Voltage: 12 Volts
  • Capacity: 55 AH
  • Terminal Type: Nut & Bolt
  • Warranty: 1 Year

Benefits

This Sonnenschein A512/55A replacement battery provides superior durability and extended life in a sealed, maintenance-free package. The AGM construction minimizes electrolyte movement and provides excellent charge acceptance and cycle life—even under frequent discharge and recharge conditions. That makes it an ideal long-lasting battery for installations where reliability is non-negotiable, such as emergency lighting, fire and security alarm systems, and medical devices.

As a high-performance battery, it supports quick, efficient charging and stabilizes voltage for sensitive electronics. The nut & bolt terminal design delivers secure connections in stationary installations, and the spill-proof, factory-fresh build reduces maintenance overhead for facilities teams. Certifications including U.L. recognition and CE compliance further confirm that this replacement battery meets strict safety and quality standards.

Typical applications include emergency lighting modules, UPS and emergency power systems, building safety equipment, and other standby power systems. It is also suitable for environments where long service life and consistent performance are essential—helping to minimize downtime and the need for frequent battery swaps. Professionals installing or servicing Sonnenschein A512/55A-compatible systems will find this unit a straightforward, direct-fit replacement that restores full backup capability.

Ready to upgrade to a dependable power source? Purchase this Sonnenschein A512/55A replacement battery today to ensure your emergency systems remain protected with a high-performance, long-lasting battery backed by a one-year warranty.

Technical Specifications

Voltage12 Volts
Amp Hours55 AH
Terminal TypeNut & Bolt
Length (in.)9.04
Width (in.)5.45
Height (in.)8.15
Weight (lb.)36.0

Product Highlights

  • Brand Replacement : Sonnenschein A512/55A Battery
  • Manufacturer: SigmasTek
  • Product Type: Emergency Power
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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