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SigmasTek  |  SKU: BW-1885

SigmasTek SPX12-540FR High Performance UPS Replacement Battery 95.39 lb

23% off
New arrival
Sale price $569.99 USD Regular price $740.99
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Genuine SigmasTek SPX12-540FR rechargeable UPS battery
High-rate discharge delivers dependable UPS performance
Less than 3% self-discharge rate for long shelf life
No-leak, spill-proof design usable in any position
UL Listed ABS flame retardant case with 3-year warranty
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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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⚠️ 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 | 159 Ah

Terminal Type

Internal Thread

Genuine SigmasTek SPX12-540FR — Compatible with SPX12-540FR

The genuine SigmasTek SPX12-540FR is a sealed lead acid battery built for dependable UPS performance and standby power reliability. This high-rate design offers consistent discharge capability and AGM construction for secure, leak-proof operation. If you’re looking for a high-performance UPS battery that delivers dependable run-time and extended standby life, the SPX12-540FR is an excellent, long-lasting battery choice.

Key Specifications

  • Model: SPX12-540FR
  • Brand: SigmasTek (genuine)
  • Nominal Voltage: 12 Volts
  • Capacity: 159 Ah
  • Watts per cell (15-min rate @ 1.67 V): 539 Watts per cell
  • Terminal Type: Internal Thread
  • Battery Type: Rechargeable sealed lead acid (AGM)
  • Technology: Absorbent Glass Mat (AGM)
  • Case: ABS (UL94 V-0) flame retardant case
  • Construction: Spill proof, no-leak construction — can be operated in any position
  • Self-discharge Rate: Less than 3% per month
  • Standby Life Expectancy: Up to 10 years in standby use
  • Cycle Life: Up to 300 cycles at 100% discharge in cycle service
  • Warranty: 3 Year Warranty
  • Certifications: UL Listed
  • Condition: Brand New, Factory Fresh
  • Performance: Superior performance guaranteed, high-rate discharge design
  • Packaging & Testing: Professionally tested and packaged
  • Typical Shipping: Orders for in-stock items typically ship within 24 hours

Benefits

The SigmasTek SPX12-540FR offers exceptional durability and extended operational life, making it a trusted choice for UPS and standby power systems. AGM construction and an UL-rated ABS case provide impact resistance and fire-retardant protection. With a self-discharge rate below 3% per month and up to 10 years of standby life, this battery reduces upkeep and provides dependable readiness over the long term.

As a high-performance UPS battery, the SPX12-540FR supports rapid high-rate discharge events while maintaining stable output, which is essential for safeguarding servers, network infrastructure, and emergency devices. Its spill-proof design and internal-thread terminals make installation straightforward and secure, even in confined or vibration-exposed environments.

Common applications include UPS backup for critical IT assets, emergency power systems, telecommunications equipment, and industrial standby uses. For cycle-intensive environments, this battery is rated for up to 300 cycles at 100% discharge, offering versatility for both standby and cycling roles.

Don’t wait to secure reliable backup power. Purchase the genuine SigmasTek SPX12-540FR replacement UPS battery today to get a high-performance UPS battery with proven long-lasting battery life, professional testing, and fast shipping.

Technical Specifications

Voltage12 Volts
Amp Hours159 Ah
Terminal TypeInternal Thread
Length (in.)13.19
Width (in.)6.77
Height (in.)10.83
Weight (lb.)95.3

Product Highlights

  • Brand Replacement : SigmasTek SPX12-540FR
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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