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-4650

Upsonic PC MIGHT 25 UPS High Performance Replacement Battery 3.5 lb

14% off
New arrival
Sale price $29.99 USD Regular price $34.99
Shipping calculated at checkout.
Pack of 10 brand new SigmasTek SP12-5.5HR batteries (12V 5.5 AH)
High rate discharge design ideal for UPS and emergency power
Valve regulated, spill-proof construction for safe operation
Low self-discharge and high vibration resistance for durability
Certified safe and reliable with 1-year manufacturer 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 | 5.5 Ah

Terminal Type

F2

Replacement Battery for Upsonic PC MIGHT 25 UPS - SigmasTek SP12-5.5HR (Single)

This single replacement UPS battery is specifically designed for the Upsonic PC MIGHT 25 Uninterruptible Power Supply, delivering reliable compatibility and restored backup capability. The SigmasTek SP12-5.5HR offers a compact, factory-fresh option for replacing worn cells and maintaining UPS performance. If you need a high-performance UPS battery that provides dependable, long-lasting battery life for emergency standby or backup equipment, this SigmasTek unit is an excellent single-battery replacement.

Key Specifications

  • Compatible UPS Model: Upsonic PC MIGHT 25
  • Quantity: 1 SigmasTek SP12-5.5HR battery
  • Voltage: 12 Volts
  • Capacity: 5.5 Ah
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Performance Features: Low Self-discharge; High Vibration Resistance; Superior Performance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Installation Note: Use all existing cables and hardware from your original configuration to connect the new UPS battery
  • Typical Applications: Uninterruptible Power Supply (UPS) Units; Emergency Power Supply; Battery Powered Tools

Benefits

As a replacement UPS battery, the SigmasTek SP12-5.5HR offers dependable operation and a long-lasting battery life for compact UPS units like the Upsonic PC MIGHT 25. The high rate discharge design delivers the necessary power for short bursts during transfer events, while valve-regulated, spill-proof construction enhances safety and reduces maintenance needs. Low self-discharge keeps the battery ready for use even after storage, ensuring reliable startup when it’s needed most.

The battery’s high vibration resistance makes it robust enough for installations that experience movement or vibration, and UL/CE recognition demonstrates adherence to accepted safety and manufacturing standards. Whether you are replacing a single failed battery in a multi-cell string or keeping a spare on hand for rapid swap-outs, this high-performance UPS battery provides consistent performance across emergency power and backup scenarios. It’s equally useful for small-scale UPS units and battery-powered tools that require instant energy delivery.

Technically tested and factory fresh, this SigmasTek cell is intended to meet or exceed OEM expectations while offering a cost-effective, long-lasting battery choice for maintaining the Upsonic PC MIGHT 25’s protection.

Restore reliable backup power to your Upsonic PC MIGHT 25—order this replacement UPS battery today. Fast shipping and a 1 year warranty make it simple to secure a dependable, long-lasting battery for your critical equipment.

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 : Upsonic PC
  • 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.