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-4900

Best Power FERRUPS FE 850VA UPS High Performance Replacement Battery 24.72 lb

17% off
New arrival
Sale price $122.99 USD Regular price $148.99
Shipping calculated at checkout.
OEM-spec replacement battery for Best Power FERRUPS FE 850VA UPS
AGM Technology delivers consistent, high-rate discharge power
Maintenance-free and spill-proof design for safety
U.L. Recognized and CE Certified for trusted quality
1 Year warranty and guaranteed 100% compatibility
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 | 35 AH

Terminal Type

Nut & Bolt

Replacement Best Power FERRUPS FE 850VA Battery — Compatible with Best Power FERRUPS FE 850VA

This replacement UPS battery is tailored for the Best Power FERRUPS FE 850VA and offers dependable compatibility, strong performance, and maintenance-free reliability. As a high-performance UPS battery that meets or exceeds OEM SLA specifications, it protects critical equipment by restoring the runtime and safety your UPS is designed to provide. Perfect for larger desktop UPS units, small office servers, and emergency backup systems, this long-lasting battery ensures you remain powered through outages.

Key Specifications

  • Compatibility: Best Power FERRUPS FE 850VA
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Design: High Rate Discharge Design
  • Maintenance: Maintenance-Free Design with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Applications listed: Emergency Power Supply; Battery Powered Tools
  • Additional product info: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Terminal type: Nut & Bolt
  • Brand references: Best Power

Benefits

  • Durability: AGM construction with spill-proof, maintenance-free design for dependable service in UPS and emergency scenarios.
  • Long life: High rate discharge design optimizes performance across numerous backup cycles, delivering a long-lasting battery solution.
  • High performance: Built to meet or exceed OEM SLA standards so your Best Power FERRUPS FE 850VA maintains stable output and expected runtime under load.
  • Safety and compliance: U.L. Recognized and CE Certified for reliable operation in a variety of settings.
  • Multiple applications: Ideal for UPS units, emergency backup power, and battery-powered tools where a sturdy replacement UPS battery is required.
  • Easy replacement: Nut & bolt terminals allow secure, straightforward installation and reliable electrical contact.
  • Confidence in purchase: Brand new, factory-fresh condition backed by a 1 year warranty for performance and peace of mind.

Ensure uninterrupted protection for your Best Power FERRUPS FE 850VA with this reliable, high-performance replacement UPS battery. Order today to secure long-lasting backup power and dependable performance.

Technical Specifications

Voltage12 Volts
Amp Hours35 AH
Terminal TypeNut & Bolt
Length (in.)7.72
Width (in.)5.14
Height (in.)6.22
Weight (lb.)24.7

Product Highlights

  • Brand Replacement : Best Power
  • 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.