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-4668

PowerWare PW3105-350VA UPS High Performance Replacement Battery 3.5 lb

19% off
New arrival
Sale price $29.99 USD Regular price $36.99
Shipping calculated at checkout.
Reliable performance
Reliable performance
Reliable performance
Reliable performance
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

SigmasTek SP12-5.5HR Replacement for PowerWare PW3105-350VA

Engineered to fit the PowerWare PW3105-350VA, the SigmasTek SP12-5.5HR replacement UPS battery offers a reliable mix of power, durability, and safety. This replacement UPS battery provides high rate discharge capability for brief high-power demands, low self-discharge for extended readiness, and rugged valve-regulated, spill-proof construction to minimize maintenance. Make sure to reuse all original cables and hardware when installing this battery in your PowerWare PW3105-350VA.

Key Specifications

  • Brand: SigmasTek
  • Model / Part Number: SP12-5.5HR
  • Compatible UPS Model: PowerWare PW3105-350VA
  • Voltage: 12 Volts
  • Capacity: 5.5 Ah
  • Terminal Type: F2
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof
  • Self-discharge: Low Self-discharge
  • Vibration Resistance: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty

Benefits

  • Exceptional Durability: Valve-regulated, spill-proof construction and strong vibration resistance make this a durable choice for UPS environments and portable applications.
  • Long-Lasting Performance: Low self-discharge properties help maintain charge during storage and standby, delivering a long-lasting battery that keeps your PowerWare PW3105-350VA ready for unexpected outages.
  • High Performance: Designed for high rate discharge, this high-performance UPS battery supplies the short, intense power delivery many UPS transfer events require.
  • Safety Certified: U.L. Recognition and CE Certification ensure compliance with important safety standards.
  • Wide Application Use: Ideal for Uninterruptible Power Supply (UPS) units, emergency power systems, and battery-powered tools that need reliable backup or portable power.
  • Tested & Warranty Backed: Each battery is tested to meet or exceed OEM specs and comes with a 1 year warranty. Support is available at for any purchasing questions.

Give your PowerWare PW3105-350VA a reliable power upgrade with this replacement UPS battery. Orders for in-stock items are typically shipped within 24 hours. Buy now to secure a dependable, long-lasting battery that restores critical runtime and system protection.

Technical Specifications

Voltage12 Volts
Amp Hours5.5 Ah
Terminal TypeF2
Length (in.)3.54
Width (in.)2.76
Height (in.)3.98
Weight (lb.)3.5

Product Highlights

  • Brand Replacement : PowerWare PW3105-350VA
  • 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.