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SigmasTek  |  SKU: BW-5221

ONEAC ON600X-WL UPS High Performance Compatible Replacement Battery Set 25.32 lb

25% off
New arrival
Sale price $113.99 USD Regular price $152.99
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Includes 2 brand new SigmasTek SP12-18HR batteries (12V, 18AH)
High rate discharge design for powerful short-term output
Valve regulated, spill-proof, and vibration resistant construction
Low self-discharge for longer shelf life and reliability
U.L. recognized, CE certified, and backed by a 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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Category

UPS Batteries

Brand Replacement

SigmasTek

Volts & Amps

12 Volts | 18 Ah

Terminal Type

Nut & Bolt

Replacement SigmasTek SP12-18HR Battery Set for ONEAC ON600X-WL

Upgrade your ONEAC ON600X-WL Uninterruptible Power Supply with a reliable, high-performance replacement UPS battery set engineered for dependable backup, consistent performance, and long service life. This kit is designed to match the original OEM intent and delivers the surge and discharge characteristics needed for high rate UPS applications. If you rely on your ONEAC ON600X-WL for critical systems, these brand new SigmasTek batteries provide the dependable power and quality you expect from a trusted replacement.

Key Specifications

  • Compatible UPS model: ONEAC ON600X-WL
  • Included quantity: 2 batteries (battery set)
  • Battery model: SigmasTek SP12-18HR
  • Voltage: 12 Volts
  • Capacity: 18 AH (amp-hours)
  • Terminal type: Nut & Bolt
  • 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
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Installation note: Use all existing cables and hardware from the original configuration to connect the new UPS batteries

Benefits

  • Durability: Constructed with valve regulated, spill proof technology and high vibration resistance to withstand demanding UPS environments and frequent handling during replacement.
  • Long life and reliability: Low self-discharge chemistry and factory-fresh condition help ensure a long-lasting battery that holds charge when idle — a true long-lasting battery solution for backup systems.
  • High performance: The high rate discharge design enables higher power output over short periods, making this a high-performance UPS battery choice for sudden load demands.
  • Certified quality: U.L. recognition and CE certification offer peace of mind that these batteries meet established safety and performance standards.
  • Versatile applications: Ideal for Uninterruptible Power Supply (UPS) units like the ONEAC ON600X-WL, emergency power supply systems, and battery powered tools where robust, short-term power bursts are required.
  • OEM-equivalent replacement: Technically tested to meet or exceed OEM specifications so your ONEAC ON600X-WL will maintain reliable backup behavior with this replacement UPS battery set.

Ready to restore dependable backup power to your ONEAC ON600X-WL? Order this SigmasTek SP12-18HR replacement UPS battery set now to enjoy fast shipping, a 1 year warranty, and the confidence of a long-lasting battery replacement. Purchase today and keep your critical systems protected.

Technical Specifications

Voltage12 Volts
Amp Hours18 Ah
Terminal TypeNut & Bolt
Length (in.)7.13
Width (in.)3.0
Height (in.)6.59
Weight (lb.)25.3

Product Highlights

  • Brand Replacement : ONEAC ON600X-WL
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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