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SigmasTek  |  SKU: BW-4322

Douglas Guardiang DG12-55 UPS Compatible Replacement Battery 36.03 lb

21% off
New arrival
Sale price $141.79 USD Regular price $179.07
Shipping calculated at checkout.
High rate discharge design for superior UPS performance
Valve regulated spill-proof construction prevents leaks
Low self-discharge extends battery shelf life
High vibration resistance ensures durability in tough conditions
U.L. recognized and CE certified for reliable 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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⚠️ 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 | 55 AH

Terminal Type

Nut & Bolt

Douglas Guardiang DG12-55 - SigmasTek SP12-55 NB Replacement Battery (12V 55AH)

This brand new SigmasTek SP12-55 NB replacement battery is specifically designed for the Douglas Guardiang DG12-55 UPS model, providing reliable compatibility and superior performance. If your DG12-55 needs restored runtime or improved emergency backup capacity, this long-lasting battery is a direct replacement engineered for high-rate discharge applications. Please note: use your existing cables and hardware from the original configuration to connect this replacement UPS battery.

Key Specifications

  • Compatibility: Douglas Guardiang DG12-55
  • Model: SigmasTek SP12-55 NB
  • Voltage: 12 Volts
  • Capacity: 55 AH
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated, Spill Proof Construction
  • Feature: Low Self-discharge
  • Feature: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Performance: Superior Performance
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Brand: SigmasTek
  • Terminal Type: Nut & Bolt

Benefits

  • Durability: Valve-regulated, spill-proof construction and high vibration resistance make this replacement UPS battery durable in transportation and installation environments.
  • Long Life: Low self-discharge chemistry preserves capacity during storage and standby, contributing to a long-lasting battery life under typical UPS service conditions.
  • High Performance: Designed as a high rate discharge battery, it supports short-duration high-power demands—ideal for UPS events where instantaneous output is essential.
  • Reliable Certification: U.L. recognition and CE certification ensure adherence to safety and quality standards for critical backup applications.
  • Typical Applications: Perfect for Uninterruptible Power Supply (UPS) units, emergency power systems, and battery-powered tools that demand dependable power delivery.
  • Factory Fresh Assurance: Each battery is brand new and tested to meet or exceed OEM specifications, offering you confidence in system restoration and backup readiness.

Replace your Douglas Guardiang DG12-55 battery with this high-performance UPS battery confidently. Buy this replacement UPS battery today to restore backup capacity and get reliable, long-lasting battery performance backed by a 1 Year Warranty.

Technical Specifications

Voltage12 Volts
Amp Hours55 AH
Terminal TypeNut & Bolt
Length (in.)9.04
Width (in.)5.45
Height (in.)8.15
Weight (lb.)36.0

Product Highlights

  • Brand Replacement : Douglas Guardiang
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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