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-4319

Vision 6FM55-X UPS High Performance Replacement Battery 36.03 lb

18% off
New arrival
Sale price $209.99 USD Regular price $255.99
Shipping calculated at checkout.
High rate discharge for Vision 6FM55-X UPS battery
Valve regulated spill-proof design for safety and reliability
Low self-discharge for long-term power retention
High vibration resistance for extended life
Certified and comes with 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 | 55 AH

Terminal Type

Nut & Bolt

SigmasTek SP12-55 NB Replacement Battery for Vision 6FM55-X UPS

Built for use with the Vision 6FM55-X Uninterruptible Power Supply, the SigmasTek SP12-55 NB is a robust, high-capacity replacement UPS battery delivering 12 volts and 55 AH of stored energy. This long-lasting battery is specifically designed for high rate discharge UPS applications where larger power reserves are required for extended or demanding backups. The unit is brand new, factory fresh, and factory-tested to ensure reliable operation in Vision 6FM55-X systems. Please reuse existing cables and hardware from your original configuration when installing this replacement UPS battery.

Key Specifications

  • Brand: SigmasTek
  • Model: SP12-55 NB
  • Voltage: 12 Volts
  • Capacity: 55 AH
  • Terminal: Nut & Bolt (terminal type specified in product text)
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Features: Low Self-discharge, High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatible UPS Model: Vision 6FM55-X

Benefits

This high-performance UPS battery provides dependable, long-lasting battery life suitable for high-capacity UPS systems, emergency power applications, and heavy-duty battery-powered equipment. With a 55 AH capacity and high rate discharge capability, it supplies stable power during extended outages and peak load events. The nut & bolt terminal connection offers secure installation and reliable electrical contact for high-current applications. Valve regulated spill proof design and low self-discharge make this unit virtually maintenance-free while maintaining readiness over time.

Typical applications include Uninterruptible Power Supply (UPS) units, emergency power supply systems, and battery-powered tools that require sustained, high-capacity backup. Certified to U.L. and CE standards and tested by our experienced technical staff, the SigmasTek SP12-55 NB is a long-lasting battery choice for Vision 6FM55-X installations.

Purchase today with confidence: in-stock orders generally ship within 24 hours and are backed by a 1 Year Warranty. Upgrade to this replacement UPS battery to secure reliable backup power for your Vision 6FM55-X UPS system.

Click to buy now and ensure continuous protection with a high-performance UPS battery.

Technical Specifications

Voltage12 Volts
Amp Hours55 AH
Terminal TypeNut & Bolt
Length (in.)9.04
Width (in.)5.45
Height (in.)8.15
Weight (lb.)36.0

Product Highlights

  • Brand Replacement : Vision 6FM55-X
  • 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.