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SigmasTek  |  SKU: BW-16842

Union MX-121000 Compatible Replacement Battery 68.06 lb

24% off
Sale price $287.99 USD Regular price $376.99
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Absorbent Glass Mat (AGM) technology for enhanced performance
Maintenance-free and spill-proof design for hassle-free use
U.L. Recognized and CE Certified for safety and reliability
Brand new, factory fresh condition ensures optimal lifespan
1-year warranty for peace of mind and guaranteed quality
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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 | 100 Ah

Terminal Type

Nut & Bolt

Union Battery MX-121000 Battery (Replacement) — Compatible with Union Battery MX-121000

For a trustworthy replacement battery for your Union Battery MX-121000, choose a unit designed for compatibility and performance. This Union Battery MX-121000 replacement battery meets or exceeds OEM SLA battery specifications and provides the reliable reserve power you expect. Featuring Absorbent Glass Mat (AGM) technology and a maintenance-free, spill-proof build, this high-performance battery gives dependable operation in both standby and active roles.

Key Specifications

  • Model: Union Battery MX-121000 (replacement)
  • Type: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Voltage: 12 Volts
  • Capacity: 100 Ah
  • Terminal: Nut & Bolt
  • Design: Maintenance-Free with Spill Proof Construction
  • Safety/Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Replacement Brand: SigmasTek (replacement)
  • Compatibility: Meets or exceeds OEM SLA battery specifications for Union Battery MX-121000

Benefits

The Union Battery MX-121000 replacement battery is built for endurance and dependable operation. The AGM design improves performance in cycling and standby roles while providing enhanced vibration resistance. Its sealed, maintenance-free nature reduces upkeep and eliminates the hazards associated with open-cell batteries. As a result, you get a long-lasting battery that stays ready for extended periods of standby duty or repeated charge/discharge cycles.

This high-performance battery is suited for UPS units, emergency power systems, security and alarm panels, telecom racks, and electric tools. The nut-and-bolt terminals facilitate strong mechanical and electrical connections, minimizing voltage drop and ensuring efficient power delivery under load. U.L. and CE certifications combined with factory-fresh condition make this replacement battery a dependable and safe option for both commercial and residential installations.

Backed by a 1-year warranty, the Union Battery MX-121000 replacement battery from SigmasTek gives you confidence in performance and long-term value. It’s an ideal choice when replacing worn or failing batteries in critical systems.

Take the next step—order the Union Battery MX-121000 replacement battery now to secure a long-lasting, high-performance battery that keeps your equipment running when it counts.

Technical Specifications

Voltage12 Volts
Amp Hours100 Ah
Terminal TypeNut & Bolt
Length (in.)12.0
Width (in.)6.6
Height (in.)8.15
Weight (lb.)68.0

Product Highlights

  • Brand Replacement : Union Battery MX-121000
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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