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-13064

Sonnenschein A512/850A High-Performance Replacement Battery 68.06 lb

23% off
Sale price $287.99 USD Regular price $371.99
Shipping calculated at checkout.
Replacement battery meets or exceeds OEM Sonnenschein A512/850A specifications
Uses advanced Absorbent Glass Mat (AGM) technology for reliable performance
Maintenance-free and spill-proof design for safe, hassle-free use
U.L. Recognized and CE Certified for quality and safety assurance
Includes 1-year warranty and factory-fresh, brand new condition
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 | 100 Ah

Terminal Type

Internal Thread

Sonnenschein A512/850A Replacement Battery — Compatible with Sonnenschein A512/850A

The Sonnenschein A512/850A replacement battery is a premium SLA replacement built to meet OEM standards for emergency lighting and backup applications. This replacement battery is a high-performance battery option that combines AGM technology and maintenance-free design for reliable, long-lasting battery operation. Ideal for installations that demand safety, certification and consistent power, this unit is engineered for dependable service.

Key Specifications

  • Technology: Absorbent Glass Mat (AGM) Technology
  • Design: Maintenance-Free Design
  • Construction: Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Voltage: 12 Volts
  • Capacity: 100 Ah
  • Terminal Type: Internal Thread

Benefits

The Sonnenschein A512/850A replacement battery offers robust durability and consistent performance thanks to AGM technology and a spill-proof, maintenance-free design. AGM batteries are known for their low self-discharge, excellent charge acceptance and high cycle life—attributes that contribute to a long-lasting battery solution for both standby and cyclic applications. With U.L. recognition and CE certification, this unit meets rigorous standards for safe deployment.

This replacement battery is suitable for a wide range of applications including emergency lighting, security and fire alarms, UPS systems, medical equipment and other critical backup uses. The 12 volt, 100 Ah capacity provides substantial reserve power for extended runtimes, and internal thread terminals ensure secure connections in professional installations. As a high-performance battery, it’s well-suited for facility managers and installers looking for reliable replacement battery options.

Backed by a one-year warranty and supplied factory-fresh, the Sonnenschein A512/850A replacement battery reduces maintenance needs while delivering dependable service. Its spill-proof construction and maintenance-free design make it a practical choice for demanding environments.

Secure your Sonnenschein A512/850A replacement battery now — purchase today to ensure uninterrupted protection for your emergency systems and enjoy the benefits of a long-lasting battery solution.

Technical Specifications

Voltage12 Volts
Amp Hours100 Ah
Terminal TypeInternal Thread
Length (in.)12.0
Width (in.)6.6
Height (in.)8.15
Weight (lb.)68.0

Product Highlights

  • Brand Replacement : Sonnenschein A512/850A Battery
  • Manufacturer: SigmasTek
  • Product Type: Emergency Power
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • 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.