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SigmasTek  |  SKU: BW-5223

ONEAC ON1300J-SN UPS High Performance Compatible Replacement Battery Set 25.32 lb

19% off
New arrival
$113.99 USD $140.99
Shipping calculated at checkout.
Includes 2 SigmasTek SP12-18HR batteries (12V 18AH) for ONEAC ON1300J-SN UPS
High rate discharge design for superior UPS performance
Valve regulated, spill-proof batteries require no maintenance
Low self-discharge and high vibration resistance enhance reliability
U.L. recognized, CE certified and backed by a 1-year warranty
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from 22 reviews

WORKS GREAT!

Anonymous

Fast shipping and fair pricing. I will look to you for future battery purchases.

Anonymous

It's hard to rate a battery until some time has passed and it either continues functioning as it should of "gives up the ghost." It was not a straight bolt in application. The positive terminal was different than the stock battery and the positive lead from the motorcycle had to be bent in order to attach it to the battery. Otherwise, if the battery gives long service I have no complaints.

Anonymous

Shopping with you is a bit difficult; I had to type in a few words differently before I could find the battery's I was looking for.

Laura J

Excellent Product, timely delivery, love the extra battery life. Would recommend. rk

Robin Keister

Very easy to buy, high confidence that it was legit company. Reviews were good. Price, in the ball park. We'll see when I get battery.

Rob

Thank you for supplying the battery that I wanted. It arrived today in good order. Its specifications are as advertised and after charging, performs as expected.
Thank you for your professional approach to the payment method.
Regards Roy VK4ZQ.

Roy O'Malley

It worked

Mel Light

Finally found a battery that is similar in function to original equipment.

Anonymous

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In conclusion, I believe that BatteryWeb has excellent service staff who make their customers feel honored and valued.
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Michael Talianker

this battery was just what I needed.

Robert Jones

Product is exactly as described and arrived quickly

Robert Jones

Great deal for the money.

Linda M.

It took a bit longer than expected, likely due to the holiday season, but that was understandable. So far, the battery seems to be working well!

Linda M.

Easy to purchase

Alberto J.

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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.

Category

UPS Batteries

Brand Replacement

SigmasTek

Volts & Amps

12 Volts | 18 Ah

Terminal Type

Nut & Bolt

Replacement SigmasTek SP12-18HR Battery Set for ONEAC ON1300J-SN

Keep your ONEAC ON1300J-SN Uninterruptible Power Supply running at peak readiness with this dependable replacement UPS battery set. Built for consistent output, tested for quality, and suited for high rate discharge needs, these SigmasTek batteries deliver the performance and reliability required by critical backup systems. Trust this kit to provide the dependable backup energy your ONEAC ON1300J-SN needs to protect sensitive equipment during outages.

Key Specifications

  • Compatible UPS model: ONEAC ON1300J-SN
  • 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

  • Durable build: Valve-regulated, spill proof construction and vibration resistance protect the battery internals for extended service in UPS installations.
  • Extended readiness: Low self-discharge helps maintain charge during storage so your replacement stays ready—this is a true long-lasting battery option for emergency backup.
  • High-performance output: The high rate discharge design supports the short-duration, high-power demands common in UPS and emergency systems, qualifying it as a high-performance UPS battery.
  • Certified safety: U.L. recognition and CE certification demonstrate adherence to recognized safety and manufacturing standards.
  • Versatile application: Use these batteries in Uninterruptible Power Supply (UPS) units like the ONEAC ON1300J-SN, emergency power supplies, and battery powered tools.
  • OEM-level testing: Each battery is tested to ensure compatibility and performance that meet or exceed OEM expectations for reliable backup power.

Ready to upgrade your ONEAC ON1300J-SN with a reliable replacement UPS battery? Order the SigmasTek SP12-18HR set today for prompt shipping and the peace of mind of a 1 year warranty. Secure your critical systems now.

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 ON1300J-SN
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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