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-4862

Best Power FERRUPS FES 1.15KVA UPS High Performance Replacement Battery Set 49.45 lb

15% off
New arrival
Sale price $245.99 USD Regular price $287.99
Shipping calculated at checkout.
Includes 2 brand new SigmasTek SP12-35 NB batteries (12V 35AH)
Designed for high rate discharge UPS applications requiring quick power bursts
Valve regulated and spill-proof for safe, maintenance-free use
Low self-discharge extends battery life during storage
Certified safety standards 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 | 35 AH

Terminal Type

Nut & Bolt

SigmasTek SP12-35 NB Replacement Battery Set — Compatible with Best Power FERRUPS FES 1.15KVA UPS

Restore robust backup capability in your Best Power FERRUPS FES 1.15KVA with this precision-matched replacement UPS battery set. Supplied as 2 SigmasTek SP12-35 NB batteries (12 Volts, 35 AH), this kit focuses on delivering reliable performance, safety, and the long-lasting battery life you expect from a high-quality replacement. Ideal for maintenance cycles or emergency replacements, these batteries help ensure your FERRUPS FES 1.15KVA keeps critical systems protected.

Key Specifications

  • Battery Model: SigmasTek SP12-35 NB
  • Quantity Included: 2 batteries
  • Voltage: 12 Volts
  • Capacity: 35 AH (Amp-hours)
  • Terminal Type: Nut & Bolt
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • 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
  • Compatible UPS Model: Best Power FERRUPS FES 1.15KVA
  • Applications: Uninterruptible Power Supply (UPS), Emergency Power Supply, Battery Powered Tools
  • Installation Note: Use all existing cables and hardware from original configuration to connect new batteries
  • Brand: SigmasTek
  • Performance: Superior Performance for high rate discharge UPS applications

Benefits

Designed as a high-performance UPS battery, this SigmasTek set offers dependable power delivery, engineered for frequent or high-rate discharge cycles common in UPS applications. Expect improved durability and a long-lasting battery life thanks to valve regulated, spill-proof construction and low self-discharge characteristics. The robust design minimizes maintenance and guards against leakage, while high vibration resistance maintains performance in demanding physical environments.

These batteries are particularly well-suited for Uninterruptible Power Supply units, emergency power systems, and battery powered tools that require consistent, reliable energy bursts. Tested to meet or exceed OEM specifications, the set gives you confidence in performance and compatibility with your Best Power FERRUPS FES 1.15KVA. Certification by U.L. and CE underscores quality and safety.

Don’t wait until the next outage—replace your FERRUPS FES 1.15KVA batteries now with this high-performance UPS battery set. Click to purchase and regain peace of mind with a long-lasting battery backed by a 1 year warranty.

Technical Specifications

Voltage12 Volts
Amp Hours35 AH
Terminal TypeNut & Bolt
Length (in.)7.72
Width (in.)5.14
Height (in.)6.22
Weight (lb.)49.4

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.