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SigmasTek  |  SKU: BW-12797

Sonnenschein A512/300G6 High Performance Replacement Battery 24.72 lb

25% off
Sale price $122.99 USD Regular price $164.99
Shipping calculated at checkout.
Absorbent Glass Mat (AGM) technology for superior performance and safety
Maintenance-free design ensures hassle-free use and longevity
Spill-proof construction for safe operation in any orientation
U.L. Recognized and CE Certified for reliable quality and compliance
1-year warranty guarantees peace of mind and product confidence
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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 | 35 AH

Terminal Type

Nut & Bolt

Sonnenschein A512/300G6 Replacement Battery — Compatible with Sonnenschein A512/300G6

Restore reliable backup power with the Sonnenschein A512/300G6 replacement battery, engineered to meet or exceed OEM SLA specifications for full compatibility with the Sonnenschein A512/300G6 model. This unit delivers consistent voltage and dependable capacity in a maintenance-free package, making it an excellent choice for emergency systems and continuous standby applications.

Key Specifications

  • Model: Sonnenschein A512/300G6 (Replacement)
  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Terminal Type: Nut & Bolt
  • Battery Technology: Absorbent Glass Mat (AGM)
  • Design: Maintenance-Free, Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty

Benefits

This Sonnenschein A512/300G6 replacement battery is built for durability and consistent output. AGM technology ensures superior charge acceptance and low self-discharge, which helps extend the functional life of the battery and supports quick recovery after load events. As a high-performance battery, it is well-suited to environments that require reliable backup power and rapid recharge, providing the steady output necessary for critical systems.

Its maintenance-free, spill proof design minimizes service needs and allows for flexible installation orientations without risking electrolyte leakage. The nut & bolt terminals provide secure and stable connections ideal for systems that experience shock or vibration. Certified by U.L. and CE, and delivered brand new and factory fresh, this replacement battery offers the quality and safety standards required by professional installations.

Typical applications include emergency lighting circuits, fire and security alarm systems, UPS backup power, medical devices, and consumer electronics where dependable standby energy is essential. Facilities managers, service technicians, and homeowners will find this unit a reliable, long-lasting battery choice for replacing aging or failed SLA batteries.

Ready to secure dependable power? Buy this Sonnenschein A512/300G6-compatible, high-performance replacement battery today and benefit from a long-lasting solution backed by a 1 year warranty. Order now to ensure uninterrupted protection for your critical systems.

Technical Specifications

Voltage12 Volts
Amp Hours35 AH
Terminal TypeNut & Bolt
Length (in.)7.72
Width (in.)5.14
Height (in.)6.22
Weight (lb.)24.7

Product Highlights

  • Brand Replacement : Sonnenschein A512/300G6 Battery
  • Manufacturer: SigmasTek
  • Product Type: Emergency Power
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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