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SigmasTek  |  SKU: BW-17088

FIAMM FG20121A Compatible Replacement Battery 1.21 lb

23% off
Sale price $10.43 USD Regular price $13.54
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Compatible replacement for FIAMM FG20121A model
Absorbent Glass Mat (AGM) technology for enhanced performance
Maintenance-free and spill-proof design for safety
U.L. Recognized and CE Certified for quality assurance
Brand new with 1-year warranty included
In stock

— Ready to ship immediately


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Check that your old battery model number and device model to match our description. This makes sure they work together.


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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 | 1.2 Ah

Terminal Type

F1

FIAMM FG20121A Replacement Battery — Compatible with FIAMM FG20121A

Upgrade your power reliability with this replacement battery compatible with the FIAMM FG20121A. Designed to meet or exceed OEM SLA specifications, this high-performance battery delivers dependable power, consistent performance, and peace of mind for critical systems. Whether you need a long-lasting battery for backup power, alarm systems, or portable devices, the FIAMM FG20121A replacement offers maintenance-free operation and proven safety certifications for reliable everyday use.

Key Specifications

  • Compatible Model: FIAMM FG20121A
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Design: Maintenance-Free Design with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 1.2 Ah
  • Terminal Type: F1

Benefits

This replacement battery combines durable AGM construction with a maintenance-free, spill-proof design to deliver reliable, long-life performance. AGM technology helps resist vibration and improves charge acceptance, making this a high-performance battery ideal for repeated charge/discharge cycles. The included U.L. recognition and CE certification ensure that safety and quality standards are met, so you can trust the battery in sensitive installations.

Durability and consistent output make this a long-lasting battery choice for applications such as UPS systems, emergency lighting, alarm systems, telecommunications, and portable power tools. Its compact 12V 1.2Ah form factor with F1 terminals fits many common housings and connectors for easy replacement. As a replacement battery specifically listed for the FIAMM FG20121A, it guarantees compatibility and reliable operation without guesswork.

Because it is factory fresh and backed by a 1 Year Warranty, you gain additional assurance against manufacturing defects. The maintenance-free design removes the need for periodic electrolyte checks or topping up, reducing downtime and ongoing maintenance costs. Overall, this unit offers a practical combination of safety certifications, AGM reliability, and the rugged construction expected from a high-quality SLA replacement.

Ready to replace your old cell? Purchase this FIAMM FG20121A replacement battery now to restore dependable power and extend the life of your equipment with a trusted, high-performance battery option.

Technical Specifications

Voltage12 Volts
Amp Hours1.2 Ah
Terminal TypeF1
Length (in.)3.78
Width (in.)1.69
Height (in.)2.04
Weight (lb.)1.21

Product Highlights

  • Brand Replacement : FIAMM FG20121A Battery
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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