Welcome to our store. Proudly serving customers across North America for years. Learn more

For support or quotes: sales@batteryweb.com

WELCOME10
SigmasTek  |  SKU: BW-5373

Best Technologies FERRUPS FE 2.1KVA UPS High Performance Replacement Battery 12.66 lb

43% off
New arrival
Sale price $34.75 USD Regular price $61.07
Shipping calculated at checkout.
High rate discharge design for superior UPS power output
Valve regulated spill proof construction for safe use
Low self-discharge and high vibration resistance
U.L. Recognized and CE Certified for quality assurance
Brand new, factory fresh with 1 year warranty
In stock

— Ready to ship immediately


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 | 18 Ah

Terminal Type

Nut & Bolt

Replacement Best Technologies FERRUPS FE 2.1KVA Battery — Compatible with Best Technologies FERRUPS FE 2.1KVA

Restore trusted backup power with this replacement UPS battery designed for the Best Technologies FERRUPS FE 2.1KVA. This unit meets or exceeds OEM SLA battery specifications and is engineered for reliable operation in demanding environments. With AGM technology, a high rate discharge design, and certified safety standards, this high-performance UPS battery is an excellent choice for protecting servers, telecom equipment, and essential electronics.

Key Specifications

  • Compatible Model: Best Technologies FERRUPS FE 2.1KVA
  • Battery Type: Sealed Lead Acid (SLA)
  • Electrolyte Technology: Absorbent Glass Mat (AGM)
  • Discharge Design: High Rate Discharge Design
  • Maintenance: Maintenance-Free with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Voltage: 12 Volts
  • Capacity: 18 Ah
  • Terminal Type: Nut & Bolt
  • Manufacturer / Label: SigmasTek
  • Brand (replacement for): Best Technologies
  • Typical Applications: Emergency Power Supply, Battery Powered Tools

Benefits

  • Robust construction: The Absorbent Glass Mat design and spill-proof casing eliminate routine maintenance and provide enhanced vibration resistance for demanding service conditions.
  • Extended service life: Engineered as a long-lasting battery solution, the high-rate discharge profile and factory-fresh components support consistent runtime and dependable performance over many cycles.
  • Peak performance: This high-performance UPS battery maintains stable voltage delivery under heavy loads, making it ideal for protecting sensitive devices connected to the Best Technologies FERRUPS FE 2.1KVA.
  • Certified safety: U.L. recognition and CE certification ensure compliance with safety standards, delivering peace of mind in both commercial and home environments.
  • Simple, secure connections: Nut & bolt terminals provide a secure, low-resistance connection for easy replacement and reliable uptime.
  • Wide applicability: Perfect for UPS backup, emergency power needs, and battery-powered tools where consistent, dependable power is essential.

Replace your failing UPS battery with this reliable, long-lasting replacement UPS battery for the Best Technologies FERRUPS FE 2.1KVA. Purchase now to ensure continuous protection for your critical systems, backed by a 1 year warranty.

Technical Specifications

Voltage12 Volts
Amp Hours18 Ah
Terminal TypeNut & Bolt
Length (in.)7.13
Width (in.)3.0
Height (in.)6.59
Weight (lb.)12.65

Product Highlights

  • Brand Replacement : Best Technologies
  • Manufacturer: SigmasTek
  • Product Type: UPS 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.