Welcome to our store. Proudly serving customers across North America for years. Learn more

For support or quotes: sales@batteryweb.com

WELCOME10
SigmasTek  |  SKU: BW-1795

APC Back-UPS XS BX900R-CN UPS High Performance Replacement Battery Set 10.51 lb

19% off
New arrival
Sale price $29.82 USD Regular price $36.81
Shipping calculated at checkout.
High rate discharge for Door King 1837 UPS units
Valve regulated spill proof and vibration resistant
Low self-discharge extends battery readiness
U.L. recognized, CE certified, factory fresh
12 Volts, 9 AH capacity with 1-year warranty
In stock

— Ready to ship immediately


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.


Volts & Amps

12 Volts | 7.5 Ah

Terminal Type

F2

Replacement Battery Set for APC Back-UPS XS BX900R-CN — Compatible with Back-UPS XS BX900R-CN

Bring your APC Back-UPS XS BX900R-CN back to full operational readiness with this brand new replacement battery set. The SigmasTek SP12-7.5HR batteries included are engineered for high rate discharge applications, providing reliable power for short-duration, high-load events. This replacement UPS battery set is factory fresh, tested, and certified to deliver reliable emergency power and UPS protection for home and small office environments.

Key Specifications

  • Compatible Model: APC Back-UPS XS BX900R-CN
  • Included: 2 SigmasTek SP12-7.5HR batteries
  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 7.5 Ah
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • 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

Benefits

  • Restores backup power reliably — designed to bring the APC Back-UPS XS BX900R-CN back to its designed backup performance with tested, factory-fresh cells.
  • High-performance output — the high rate discharge design enables reliable response to sudden power demands, making this a true high-performance UPS battery.
  • Extended readiness — low self-discharge and factory conditioning provide a long-lasting battery ready for service when power interruptions occur.
  • Robust and safe — valve regulated, spill-proof construction plus U.L. recognition and CE certification provide dependable, safe installation in consumer or professional settings.
  • Multiple applications — ideal for Uninterruptible Power Supply (UPS) units, emergency power supply systems, and battery powered tools where stable backup power is essential.
  • Quality assurance — each replacement UPS battery set is personally tested to meet or exceed OEM specifications, ensuring seamless replacement and consistent performance.

Order your replacement batteries for the APC Back-UPS XS BX900R-CN today to ensure uninterrupted protection. Buy now and get a long-lasting battery solution backed by tested quality and fast shipping for in-stock items.

Technical Specifications

Voltage12 Volts
Amp Hours7.5 Ah
Terminal TypeF2
Length (in.)5.95
Width (in.)2.56
Height (in.)3.7
Weight (lb.)10.5

Product Highlights

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

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • 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.