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SigmasTek  |  SKU: BW-5050

ONEAC ON2000J-SN UPS High Performance Replacement Battery Set 50.64 lb

26% off
New arrival
Sale price $216.99 USD Regular price $292.99
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Replacement set of 4 SigmasTek SP12-18HR batteries (12V 18AH)
High rate discharge capability for emergency and UPS power needs
Spill-proof valve regulated design helps prevent leaks and damage
Low self-discharge keeps batteries ready for long-term storage
Backed by U.L. recognition, CE certification, and 1-year warranty
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🔹 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.

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Category

UPS Batteries

Brand Replacement

SigmasTek

Volts & Amps

12 Volts | 18 Ah

Terminal Type

Nut & Bolt

Replacement Battery Set for ONEAC ON2000J-SN (4 SigmasTek SP12-18HR)

Ensure uninterrupted operation of your ONEAC ON2000J-SN with this reliable replacement battery set engineered for compatibility and dependable output. This set includes four SigmasTek SP12-18HR batteries (12 Volts, 18 AH) designed for high-rate discharge UPS requirements. If you need a replacement UPS battery that balances performance and longevity, this high-performance UPS battery kit offers the reliable energy reserve your system needs.

Key Specifications

  • Included Batteries: 4 x SigmasTek SP12-18HR
  • Voltage: 12 Volts (each)
  • Capacity: 18 AH (amp-hours) (each)
  • Terminal Type: Nut & Bolt
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated, Spill Proof
  • Self-discharge: Low Self-discharge
  • Durability: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Installation Note: Requires reuse of existing cables and hardware from original configuration
  • Brand: SigmasTek
  • Compatible UPS Model: ONEAC ON2000J-SN

Benefits

  • Dependable durability — The valve-regulated, spill-proof design combined with high vibration resistance ensures these batteries maintain integrity and function in a variety of UPS installations.
  • Long-lasting reliability — Low self-discharge preserves energy until installation, offering a long-lasting battery solution that minimizes the frequency of replacements.
  • Exceptional power performance — With a high rate discharge design, these batteries support brief periods of high power draw, making them an ideal high-performance UPS battery option.
  • Multipurpose use — Well suited for Uninterruptible Power Supply (UPS) units, emergency power supply scenarios, and battery-powered tools where dependable, immediate energy is required.
  • Tested for quality — Our technicians individually test each replacement UPS battery to confirm performance that meets or exceeds OEM specifications for the ONEAC ON2000J-SN.

Ready to upgrade your backup power? Purchase this replacement UPS battery set for the ONEAC ON2000J-SN today to restore reliable performance. Fast shipping for in-stock items and a 1 year warranty ensure you get a long-lasting battery solution with confidence. Buy now to protect your critical systems.

Technical Specifications

Voltage12 Volts
Amp Hours18 Ah
Terminal TypeNut & Bolt
Length (in.)7.13
Width (in.)3.0
Height (in.)6.59
Weight (lb.)50.6

Product Highlights

  • Brand Replacement : ONEAC ON2000J-SN
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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