Welcome to our store. Your trusted source for batteries and power solutions. Learn more

For support or quotes: sales@batteryweb.com

WELCOME5
SigmasTek  |  SKU: BW-5046

ONEAC ONXBC-4C4017 UPS High Performance Replacement Battery Set 50.64 lb

10% off
New arrival
Sale price $216.99 USD Regular price $240.99
Shipping calculated at checkout.
Contains 4 SigmasTek SP12-18HR batteries, 12 Volts, 18 AH
Built for high power UPS and emergency backup applications
Durable valve regulated and spill-proof design
Low self-discharge extends battery shelf life
Tested to meet OEM specs with 1-year warranty included
In stock

— Ready to ship immediately

Free shipping

Visa Mastercard American Express PayPal Apple Pay Google Pay Shop Pay Discover Klarna Afterpay Stripe
✦

Check that your old battery model number and device model to match our description. This makes sure they work together.


✦

We ship your order same day if you buy it before 4 PM EST.

Send Your Battery Photo

Expert Technician Help

Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.

POST YOUR BATTERY IMAGE
Product & Solutions Expert

Product & Solutions Expert

✉ sales@batteryweb.com

🔹 10+ Years Battery Experience 🔹 Fast & Accurate Identification

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.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 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 ONXBC-4C4017 (4 SigmasTek SP12-18HR)

Keep your ONEAC ONXBC-4C4017 running reliably with this brand new replacement battery set designed for compatibility, performance, and reliability. This kit includes four SigmasTek SP12-18HR batteries (12 Volts, 18 AH) engineered for high-rate discharge UPS applications where consistent power delivery and rapid response are essential. If you need a dependable replacement UPS battery that restores runtime and maintains peak performance, this high-performance UPS battery set is a direct-fit option to get your UPS back to work quickly.

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 ONXBC-4C4017

Benefits

  • Durable construction — The valve regulated, spill-proof design and high vibration resistance make these batteries robust in demanding UPS environments. They are built to withstand physical stress and provide dependable service.
  • Long life and consistent performance — Low self-discharge and factory-fresh condition mean these cells deliver extended shelf life and reliable capacity when installed. For anyone seeking a long-lasting battery for their UPS, this set restores runtime and maintains stable output under load.
  • High-performance output — Specifically designed for high-rate discharge applications, these batteries supply the burst of power needed during short-duration, high-load events. That makes this a high-performance UPS battery solution for mission-critical equipment.
  • Versatile applications — Ideal for Uninterruptible Power Supply (UPS) units, emergency power supply systems, and battery-powered tools where quick, dependable energy delivery is required.
  • Tested and guaranteed — Each replacement UPS battery is personally tested by our technical staff to meet or exceed OEM specifications, giving you confidence in compatibility and operation with your ONEAC ONXBC-4C4017.

Ready to replace the batteries in your ONEAC ONXBC-4C4017? Order this replacement UPS battery set today and get superior runtime and performance backed by a 1 year warranty. If you need assistance selecting the right replacement or guidance on installation (reuse existing cables and hardware), our customer service team is available to help — buy now to restore reliable backup power fast.

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 ONXBC-4C4017
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • Bizum
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • MB WAY
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.