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SigmasTek  |  SKU: BW-4842

Topaz 8413001NN UPS Compatible Replacement Battery Set 49.45 lb

25% off
New arrival
Sale price $245.99 USD Regular price $329.99
Shipping calculated at checkout.
Set includes 2 SigmasTek SP12-35 NB batteries, 12V 35 AH each
High rate discharge batteries built for demanding UPS applications
Durable valve regulated, spill-proof design withstands vibration
Low self-discharge extends battery life during storage
Factory fresh with a 1-year warranty for peace of mind
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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.

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🔹 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 for Topaz 8413001NN UPS

Get dependable power for your Topaz 8413001NN with this brand new replacement UPS battery set. Engineered for compatibility and peak performance, the two SigmasTek SP12-35 NB batteries provide the reliable, tested power your UPS needs during outages and high-demand events. If you’re searching for a high-performance UPS battery that restores system resilience and reduces downtime, this kit is an excellent match for the Topaz 8413001NN.

Key Specifications

  • Battery Model: SigmasTek SP12-35 NB
  • Quantity: 2 batteries per set
  • Voltage: 12 Volts
  • Capacity: 35 AH (Amp-hours)
  • Terminal Type: Nut & Bolt
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof
  • Self-discharge: Low Self-discharge
  • Durability: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatible UPS Model: Topaz 8413001NN
  • Applications: Uninterruptible Power Supply (UPS), Emergency Power Supply, Battery Powered Tools

Benefits

This replacement UPS battery kit focuses on longevity and robust performance. The SP12-35 NB cells are specifically designed for high rate discharge scenarios, making them a suitable high-performance UPS battery for appliances that demand extra power for short durations. Low self-discharge helps maintain capacity over storage periods, delivering a long-lasting battery that’s ready when you need it.

Valve regulated, spill-proof construction offers maintenance-free operation and safer handling, while high vibration resistance increases reliability in mobile or industrial settings. Certified to U.L. and CE standards, these batteries meet common safety and quality benchmarks, ensuring dependable use in network closets, emergency backup systems, and battery-powered tools. Our technicians test each unit to ensure consistent performance that meets or exceeds OEM specifications.

For installation, please reuse the existing cables and hardware from your Topaz 8413001NN; the kit does not include connector hardware. We typically ship in-stock orders within 24 hours and our customer service team at is available to help with selection and fitment.

Don’t wait until your next power event — buy this replacement UPS battery set for the Topaz 8413001NN now and secure a high-performance, long-lasting battery solution.

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 : Topaz 8413001NN
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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