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SigmasTek  |  SKU: BW-5341

Douglas Guardiang DG12-18J UPS Compatible Replacement Battery 12.66 lb

24% off
New arrival
Sale price $55.99 USD Regular price $73.99
Shipping calculated at checkout.
High rate discharge design for quick power delivery
Valve regulated spill-proof construction for safety
Low self-discharge extends battery shelf life
High vibration resistance ensures durability
U.L. recognized and CE certified for quality assurance
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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 | 18 Ah

Terminal Type

Nut & Bolt

SigmasTek SP12-18 NB Replacement for Douglas Guardiang DG12-18J UPS

Replace your failing battery with a reliable, high-quality SigmasTek SP12-18 NB replacement UPS battery designed specifically for the Douglas Guardiang DG12-18J. This 12 Volts 18 AH unit delivers dependable performance for backup power, offering the compatibility, performance, and reliability required to keep your UPS systems running when you need them most. Whether you are maintaining a home server closet, a small office UPS, or an emergency power cabinet, this high-performance UPS battery is built to provide a long-lasting battery option that meets or exceeds OEM expectations.

Key Specifications

  • Brand: SigmasTek
  • Model: SP12-18 NB
  • Compatible UPS Model: Douglas Guardiang DG12-18J
  • Voltage: 12 Volts
  • Capacity: 18 AH (Amp-hours)
  • Terminal Type: Nut & Bolt
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof
  • Features: Low Self-discharge; High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty

Benefits

This replacement UPS battery is engineered for durability and consistent performance under demanding conditions. The valve-regulated spill proof construction and low self-discharge profile help ensure a long service life and safe operation in enclosed UPS cabinets. High vibration resistance reduces wear in installations that experience mechanical stress, while the high rate discharge design provides the burst power needed for short-duration, high-load events. If you need a long-lasting battery that will support sensitive electronics, the SigmasTek SP12-18 NB gives you dependable reserve power for uninterruptible power supply systems, emergency power backup, and battery-powered tools where quick, reliable energy delivery is essential.

Our technically savvy staff personally tests each replacement UPS battery to verify performance and compatibility for the Douglas Guardiang DG12-18J. You get a high-performance UPS battery with U.L. and CE recognition, so you can rely on consistent voltage delivery and safe operation when switching from AC to battery power.

For assistance selecting the correct replacement battery or for ordering help, call our customer service department at or e-mail us. Orders for in-stock items are typically shipped within 24 hours.

Buy your replacement UPS battery for the Douglas Guardiang DG12-18J today and ensure uninterrupted protection for your equipment. Click to purchase this trusted, long-lasting battery with confidence and back your UPS with proven SigmasTek quality.

Technical Specifications

Voltage12 Volts
Amp Hours18 Ah
Terminal TypeNut & Bolt
Length (in.)7.13
Width (in.)3.0
Height (in.)6.59
Weight (lb.)12.65

Product Highlights

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

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