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-12945

Sonnenschein A512/2.0S High Performance Replacement Battery 2.32 lb

11% off
Sale price $30.99 USD Regular price $34.99
Shipping calculated at checkout.
Absorbent Glass Mat (AGM) technology for superior performance and durability
Maintenance-free design eliminates the need for regular upkeep
Spill-proof construction ensures safe and reliable use in any orientation
U.L. Recognized and CE Certified for guaranteed safety and quality
Brand new, factory-fresh battery with a 1-year warranty for peace of mind
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 | 2.3 Ah

Terminal Type

F1

Sonnenschein A512/2.0S Replacement Battery — Compatible with Sonnenschein A512/2.0S

Upgrade your emergency lighting and backup systems with this fully compatible Sonnenschein A512/2.0S replacement battery. Designed to meet or exceed the OEM SLA battery specifications, this high-performance battery offers reliable power delivery, consistent performance, and peace of mind when you need it most. Whether you're replacing an aging module in emergency lighting, a security system, or medical equipment, this replacement battery delivers dependable energy and long-lasting battery life you can trust.

Key Specifications

  • Compatible Model: Sonnenschein A512/2.0S
  • Replacement Brand: SigmasTek (replacement)
  • Battery Type: Sealed Lead Acid (SLA) — Absorbent Glass Mat (AGM) Technology
  • Voltage: 12 Volts
  • Capacity: 2.3 Ah
  • Terminal Type: F1
  • Design: Maintenance-Free, Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Meets or Exceeds: OEM Sonnenschein A512/2.0S SLA specifications

Benefits

This Sonnenschein A512/2.0S replacement battery combines rugged construction and modern AGM technology to deliver superior durability and reliable performance. The maintenance-free, spill-proof design minimizes upkeep and reduces the risk of leaks, making it safe for indoor equipment and confined enclosures. U.L. and CE certifications ensure that this unit meets recognized safety and quality benchmarks, so you get a dependable, certified power source every time.

As a high-performance battery engineered for demanding environments, it provides steady discharge characteristics and dependable recharge acceptance — crucial for systems that require fast readiness, like emergency lighting and alarm systems. The Absorbent Glass Mat (AGM) construction offers vibration resistance and improved cycle life compared to conventional flooded batteries, resulting in a long-lasting battery that reduces replacement frequency and total cost of ownership.

  • Durability: Robust AGM construction for vibration resistance and safe, spill-proof operation.
  • Long Life: Designed for extended service in standby and cyclic applications.
  • High Performance: Reliable discharge and recharge behavior under load.
  • Typical Applications: Emergency lighting, security alarms, fire alarms, UPS systems, emergency power backups, power tools, medical equipment, home & garden electronics, and consumer electronics.

Ready to replace your Sonnenschein A512/2.0S with a dependable, long-lasting battery? Order this replacement battery today and enjoy reliable emergency power when it matters most. Click to buy now or contact our customer service for assistance with compatibility and installation.

Technical Specifications

Voltage12 Volts
Amp Hours2.3 Ah
Terminal TypeF1
Length (in.)7.0
Width (in.)1.38
Height (in.)2.36
Weight (lb.)2.32

Product Highlights

  • Brand Replacement : Sonnenschein A512/2.0S 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.