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-4263

APC BACKUPS CS BK500 UPS High Performance Replacement Battery 5.25 lb

21% off
New arrival
Sale price $33.99 USD Regular price $42.99
Shipping calculated at checkout.
Reliable AGM technology for enhanced battery life
High rate discharge supports emergency power needs
Maintenance-free, spill-proof construction for safety
U.L. recognized and CE certified for quality assurance
Fits APC BACKUPS CS BK500 model, 1-year warranty
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.


Volts & Amps

12 Volts | 7.5 Ah

Terminal Type

F2

Replacement APC BACKUPS CS BK500 Battery — Compatible with APC BACKUPS CS BK500

Keep your APC BACKUPS CS BK500 performing at peak reliability with this compatible replacement UPS battery. Designed to match or exceed OEM SLA specifications, this battery provides the performance and safety you expect from a professional replacement. If you're searching for a durable, high-performance UPS battery that delivers dependable emergency power and maintenance-free service, this unit is an excellent choice.

Key Specifications

  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 7.5 Ah
  • Terminal Type: F2
  • Battery Type: Sealed Lead Acid (SLA) with Absorbent Glass Mat (AGM) Technology
  • Design: High Rate Discharge Design
  • Maintenance: Maintenance-Free with Spill Proof Construction
  • Safety/Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatible Model: APC BACKUPS CS BK500

Benefits

This replacement UPS battery is crafted for long-lasting reliability. With AGM technology and a high-rate discharge design, it handles surge loads and frequent cycling better than standard flooded batteries, making it an excellent long-lasting battery choice for UPS applications. As a maintenance-free, spill-proof unit, it minimizes upkeep and delivers safe, clean installation for home, office, or technical environments.

Key advantages include immediate compatibility with APC BACKUPS CS BK500 systems, strong safety credentials via U.L. recognition and CE certification, and a brand-new factory-fresh condition backed by a 1-year warranty. The SigmasTek 12V 7.5Ah F2 replacement battery provides dependable power for UPS backup, emergency power systems, and battery-powered tools requiring stable discharge performance.

Whether you are replacing an aged battery to maintain UPS runtime or preparing spare units for service continuity, this replacement UPS battery offers a cost-effective path to restoring full UPS capability. It’s a high-performance UPS battery built for everyday reliability and emergency readiness.

Ready to upgrade your APC BACKUPS CS BK500? Add this compatible, long-lasting replacement battery to your cart today and secure reliable protection for your equipment and data.

Technical Specifications

Voltage12 Volts
Amp Hours7.5 Ah
Terminal TypeF2
Length (in.)5.95
Width (in.)2.56
Height (in.)3.7
Weight (lb.)5.25

Product Highlights

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

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • 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.