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SigmasTek  |  SKU: BW-16841

Universal Power UB121000 (45978) Compatible Replacement Battery 68.06 lb

17% off
Sale price $287.99 USD Regular price $348.99
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Compatible replacement for Universal Power UB121000 (45978) model
Uses advanced Absorbent Glass Mat (AGM) technology for reliable performance
Maintenance-free, spill-proof design ensures safe and hassle-free use
U.L. Recognized and CE Certified for quality and safety assurance
Comes brand new with a 1-year warranty for peace of mind
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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

Universal Power UB121000 (45978) Battery (Replacement) — Compatible with Universal Power UB121000 (45978)

Need a dependable replacement for your Universal Power UB121000 (45978)? This Universal Power UB121000 (45978) replacement battery is engineered to meet or exceed OEM SLA battery specifications, delivering consistent, reliable power where it matters most. Built with Absorbent Glass Mat (AGM) technology and a maintenance-free, spill-proof design, this high-performance battery is ideal for critical backup and daily use applications.

Key Specifications

  • Model: Universal Power UB121000 (45978) (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 Universal Power UB121000 (45978)

Benefits

This replacement battery provides long-lasting performance and robust durability. AGM technology enhances the battery’s ability to absorb and hold charge, increasing cycle life and reducing the risk of deep-discharge damage. The sealed, maintenance-free design eliminates the need for routine topping up and reduces the risk of spills or corrosion in enclosed setups.

The Universal Power UB121000 (45978) replacement battery is a practical, long-lasting battery for UPS systems, emergency power backup, alarm and security systems, telecommunications, and power tools. Its nut-and-bolt terminals provide secure attachment and reliable current transfer, reducing resistance and maintaining stable operation during heavy loads.

With U.L. and CE certifications and a brand-new factory-fresh build, this high-performance battery is a trusted replacement option. Backed by a one-year warranty, it offers the quality assurance and reliability demanded by professional installations and household backup systems alike.

Ready to upgrade? Purchase this Universal Power UB121000 (45978) replacement battery from SigmasTek today for dependable, maintenance-free power and a simple, worry-free installation.

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 : Universal Power UB121000
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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