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-15341

8-Pack 12 Volt 5.5 Amp UPS Compatible Replacement Battery Set 28.03 lb

20% off
Sale price $145.99 USD Regular price $182.99
Shipping calculated at checkout.
Includes 8 high-quality 12V 5.5AH batteries for reliable UPS backup
Compatible with multiple APC SMART-UPS models for versatile use
High rate discharge design ensures powerful output during outages
Factory fresh batteries with 1-year warranty for peace of mind
In stock with same day shipping and professional customer support
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 | 5.5 Ah

Terminal Type

F2

APC RBC43 Replacement Battery Set - 8 x SigmasTek SP12-5.5HR (12 Volts 5.5 AH)

This brand new APC RBC43 replacement battery set includes eight fully tested 12 Volt 5.5 AH SP12-5.5HR batteries, engineered for direct compatibility with APC Smart-UPS and related models. Designed for high-rate UPS discharge applications, this set provides concentrated power delivery for critical surge and short-duration load events. If you need a replacement battery set that restores runtime and reliability to your APC UPS, this premium SigmasTek kit delivers factory-fresh performance and professional support.

Key Specifications

  • Replacement Set: APC RBC43 compatible
  • Quantity: 8 batteries included
  • Individual Battery Model: SP12-5.5HR
  • Voltage: 12 Volts (each)
  • Capacity: 5.5 AH (each)
  • Replacement Brand: SigmasTek
  • Terminal Type: F2
  • Design: High Rate Discharge, High Quality UPS Batteries
  • Condition: Brand New, Factory Fresh
  • Availability: In Stock and Same Day Shipping
  • Support: Professional Customer Support
  • Warranty: 1 Year
  • Note: Use existing cables and hardware to connect replacement batteries

Benefits

This APC RBC43 replacement battery set is specifically engineered for UPS systems requiring rapid, high-current discharge over short durations. The high rate discharge design makes these batteries a top choice when you need a high-performance battery that can handle the demands of server rooms, network closets, and critical infrastructure. With factory testing, professional packaging, and strict quality control, this replacement battery set provides reliable, consistent power when failures occur.

Durability: Built for repeated high-rate cycles and backed by rigorous testing to ensure dependable service. Long life: Quality components and supply-chain controls help maintain capacity and performance over the warranty period. Performance: Optimized for UPS applications to deliver stable voltage and rapid response during power events.

  • Compatible APC models include SMART-UPS DLA2200RM2U, DLA3000RM2U, DLA3000RMT2U, SUA3000R2X145, SUA3000R2X180, SUA3000RMUS, RM SUA3000RM2U, RM SUA3000RMT2U, XL SUM1500RMXL2U, SUA2200RMUS, RM SUA2200RM2U, and XL SUM3000RMXL2U
  • Primary applications: server and network UPS systems, data centers, telecommunications, and emergency power for critical equipment
  • Includes same-day shipping options and professional customer support for installation guidance

Restore reliable UPS runtime with this SigmasTek APC RBC43 replacement battery set — eight high-performance, long-lasting batteries designed for APC UPS models. Order now to ensure fast shipping and professional support, backed by a 1 year warranty.

Technical Specifications

Voltage12 Volts
Amp Hours5.5 Ah
Terminal TypeF2
Length (in.)3.54
Width (in.)2.76
Height (in.)3.98
Weight (lb.)28.0

Product Highlights

  • Brand Replacement : 8 UPS Batteries
  • Manufacturer: SigmasTek
  • Product Type: SLA 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.