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Enersys  |  SKU: BW-1900

SigmasTek SPX12-500FR High Performance UPS Replacement Battery 103.09 lb

19% off
New arrival
Sale price $477.59 USD Regular price $589.31
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Genuine SigmasTek SPX12-500FR sealed lead acid battery
High-rate discharge design for efficient UPS performance
Low self-discharge extends battery life up to 10 years
Spill-proof, no-leak ABS flame retardant case
Factory fresh with 3-year warranty and UL certification
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.

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 | 145 Ah

Terminal Type

Internal Thread

Genuine SigmasTek SPX12-500FR - Compatible SigmasTek SPX12-500FR

This genuine SigmasTek SPX12-500FR replacement UPS battery is engineered for dependable compatibility, outstanding discharge performance, and long-term reliability. As a factory fresh, sealed lead acid unit designed for high-rate discharge, it offers stable power delivery for UPS applications, emergency backup, and critical systems. If you need a high-performance UPS battery that holds charge, resists leaks, and supports extended standby lifetimes, the SPX12-500FR is an excellent choice.

Key Specifications

  • Model: SigmasTek SPX12-500FR
  • Watts per cell: 491 Watts per cell on 15-min rate at 1.67 Volts
  • Self-discharge rate: Less than 3% per month
  • Expected life: Up to 10 years in standby use
  • Cycle life: Up to 300 cycles at 100% discharge in cycle service
  • Construction: No-leak construction; can be operated in any position
  • Technology: Absorbent Glass Mat Technology
  • Case: ABS (UL94 V-0) flame retardant case
  • Condition: Brand New, Factory Fresh
  • Safety/Certifications: UL Listed
  • Warranty: 3 Year Warranty
  • Features: Spill Proof Construction; Superior Performance Guaranteed
  • Brand: SigmasTek
  • Manufacturer: Enersys
  • Voltage: 12 Volts
  • Amp Hours: 145 Ah
  • Terminal Type: Internal Thread
  • Model Compatibility: SigmasTek SPX12-500FR

Benefits

As a genuine SigmasTek product, this high-performance UPS battery offers long-term reliability and proven charge retention. The AGM construction delivers excellent charge acceptance and vibration resistance while the flame-retardant ABS case and spill-proof design protect sensitive equipment. Low self-discharge makes it ideal for standby inventory and emergency reserve power. Typical applications include UPS systems for servers and networks, emergency lighting and HVAC controls, telecom gear, and portable equipment used during maintenance or service calls. With a lengthy standby life and solid cyclic performance, it functions as a true long-lasting battery for both backup and active use cases.

Each unit is inspected, professionally packaged, and shipped ready to install. Backed by a 3 year warranty and UL listing, the SPX12-500FR offers certified safety and reliable performance for technicians, facilities managers, and end users who demand quality components.

Don’t wait—purchase the genuine SigmasTek SPX12-500FR replacement UPS battery today to secure dependable backup power. Order now for fast fulfillment and ensure your critical systems remain protected with a long-lasting, high-performance UPS battery.

Technical Specifications

Voltage12 Volts
Amp Hours145 Ah
Terminal TypeInternal Thread
Length (in.)13.3
Width (in.)6.8
Height (in.)10.7
Weight (lb.)103.0

Product Highlights

  • Brand Replacement : SigmasTek SPX12-500FR
  • Manufacturer: Enersys
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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