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SigmasTek  |  SKU: BW-5048

ONEAC ON600X UPS High Performance Replacement Battery Set 50.64 lb

26% off
New arrival
Sale price $216.99 USD Regular price $292.99
Shipping calculated at checkout.
Includes 4 brand new SigmasTek SP12-18HR batteries (12V 18AH)
High rate discharge design for quick, reliable power delivery
Valve regulated, spill-proof design prevents leaks and maintenance
Low self-discharge technology maintains battery charge longer
Tested to meet or exceed OEM specs with 1-year warranty
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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.

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🔹 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.

Category

UPS Batteries

Brand Replacement

SigmasTek

Volts & Amps

12 Volts | 18 Ah

Terminal Type

Nut & Bolt

Replacement Battery Set for ONEAC ON600X (4 SigmasTek SP12-18HR)

Get reliable replacement power for your ONEAC ON600X with this four-battery set built for compatibility and dependable performance. The kit includes four SigmasTek SP12-18HR batteries (12 Volts, 18 AH) that are factory fresh and engineered for high-rate discharge situations. If you need a long-lasting battery solution that brings your UPS back to full capacity, this high-performance UPS battery set is a practical and effective option.

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 ON600X

Benefits

  • Built for durability — Spill-proof, valve-regulated construction combined with high vibration resistance ensures these batteries perform reliably in varied environments where UPS systems operate.
  • Long-lasting reliability — Low self-discharge characteristics and new, factory-fresh condition help to preserve capacity until installed, delivering the long-lasting battery life you're counting on.
  • High-current capability — The high rate discharge design supports short-duration, high-load demands, providing the immediate power your equipment requires during outages or heavy draw events.
  • Suitable for multiple uses — Ideal for Uninterruptible Power Supply (UPS) units, emergency power supply systems, and battery-powered tools that need dependable energy delivery.
  • Verified performance — Our technical staff tests each replacement UPS battery to ensure it meets or exceeds OEM specifications for the ONEAC ON600X.

Ready to replace the batteries in your ONEAC ON600X? Purchase this replacement UPS battery set now and enjoy fast shipping on in-stock items plus a 1 year warranty. Buy today to restore dependable backup power and 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 ON600X
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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