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SigmasTek  |  SKU: BW-1611

Topaz 84126 High Performance Compatible Replacement Battery Set

Sale price $183.99 USD Regular price $262.04
Shipping calculated at checkout.

➤ Package contains 2 replacement 12V 35AH UPS batteries with NB terminals

➤ AGM battery technology for reliable, long-lasting performance

➤ UL certified to meet or exceed original manufacturer specs

➤ Fits original UPS unit using existing cables and hardware

➤ 1-year warranty included for customer satisfaction


📦🚀 FAST SHIPPING: Usually ships same day if ordered before 2 PM EST

⚠️ Quick Reminder

🔹 Please ensure the original battery model number is listed in our product description and that your device model number matches for compatibility.
🔹 We only supply the batteries shown in the images. Device images are provided for reference only.

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Battery Care Guide

Battery Usage and Maintenance Guidelines 🔋

Please read the following instructions carefully before using your new battery. Proper adherence will help ensure optimal performance and extended service life.

1. Cordless Phones, PDAs, and Power Tools (NiMH, NiCd, Lithium-Ion) 📱

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Operate the device until the battery reaches approximately 20% capacity.
  • Avoid premature recharging.
  • Do not allow the battery to fully discharge during the initial cycles.

Post-Conditioning

  • Recharge the battery only when necessary.
  • These batteries are capable of approximately 500 charge cycles:
  • Once daily → ~500 days
    Twice daily → ~250 days
    Note: Even a partial recharge is considered a full cycle.

2. Sealed Lead Acid (SLA) Batteries 💡

  • No conditioning required.
  • Maintain the battery in a fully charged state; avoid complete discharge.
  • Capable of 300–400 charge cycles.
  • Expected service life: 2–3 years, depending on usage conditions.

3. Laptop Batteries (Lithium-Ion) 💻

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Charge fully, then discharge to approximately 20% capacity.
  • Avoid complete discharge, as some devices may not detect a fully drained battery.

Post-Conditioning

  • Minimize frequent plugging and unplugging.
  • Allow the battery to discharge moderately at least once per month to maintain optimal performance.
  • Occasional cycling is recommended to sustain battery health.

Professional Recommendation

Adhering to these guidelines will enhance battery longevity and ensure reliable performance.

For further assistance regarding your battery or order, our customer support team is available to provide guidance.

Delivery and Shipping

Everything You Need to Know About Shipping with BatteryWeb (USA)

We know reliable delivery matters when you need power fast. Here’s how BatteryWeb makes shipping easy across the USA:

🚚 Shipping & Delivery

Most orders ship next business day (some products like sealed lead acid may take a little longer).

Same-day shipping available if you order before 11:59 AM (delivery depends on the carrier).

We ship nationwide using FedEx, UPS, USPS, DHL, and regional ground carriers.

Shipping costs are calculated automatically at checkout based on weight, distance, and carrier.

Transit times shown are estimates only (business days, no weekends/holidays).

🌍 Shipping Restrictions

Lithium batteries cannot be shipped by USPS or air. They must go via FedEx Ground, UPS Ground, or DHL Ground.

PO Box deliveries are only available via USPS.

At this time, we do not ship lithium batteries to Puerto Rico. NiMH, NiCd, and Alkaline can be shipped.

📦 Important Notes

Double-check your shipping address! If an incorrect address is used and the order is returned, re-shipping costs are the buyer’s responsibility.

If a product is temporarily out of stock, we’ll notify you right away with the expected restock date—or issue a refund if you prefer.

💲 Currency & Pricing

All prices are shown in USD.

Orders shipped outside the USA may be subject to local taxes, customs fees, or import duties. These are the buyer’s responsibility.

⚡ At BatteryWeb, we’re committed to getting your batteries delivered quickly, safely, and affordably—so you’ll always have the power you need, when you need it.

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.

🔹 Our products are generic replacement parts and are not affiliated with, endorsed by, or manufactured by the original equipment manufacturers (OEMs).


Volts & Amps

12 Volts | 35 AH

Terminal Type

Nut & Bolt

Replacement SigmasTek 12V 35AH (x2) for Topaz 84126 UPS

Designed specifically for the Topaz 84126, this replacement UPS battery set delivers reliable compatibility, dependable performance, and high-quality construction to keep your UPS running when you need it most. These two 12V 35AH sealed batteries are engineered with Absorption Glass Mat (AGM) technology to provide consistent power delivery, low maintenance, and the safety of a sealed lead-acid design. Whether you need a direct replacement for scheduled maintenance or an emergency swap, this high-performance UPS battery set meets or exceeds the original manufacturer specifications and is UL certified for your peace of mind.

Key Specifications

  • Compatible UPS model: Topaz 84126
  • Package contains: 2 batteries (price includes both batteries)
  • Voltage: 12 V
  • Amp Hours: 35 AH
  • Chemistry: SLA (Sealed Lead Acid)
  • Battery Technology: AGM (Absorption Glass Mat) Sealed Battery Technology
  • Terminal: NB (Nut & Bolt)
  • Weight: 49.4 Lbs (per battery)
  • Dimensions: Length 7.72 In, Width 5.14 In, Height 6.14 In
  • Warranty: 1-year Warranty
  • Certification: UL (Underwriters Laboratories) certified
  • Brand/Supplier: SigmasTek (sourced by ReplaceUPSBattery.com)
  • Shipping: UPS Ground and USPS; we ship in 1 business day for all in-stock items
  • Guaranteed compatibility with original battery set

Benefits

This replacement UPS battery set is built for durability and longevity. AGM technology offers low internal resistance and superior cycle life, delivering a long-lasting battery solution that resists vibration and leakage. As a high-performance UPS battery, it supports smooth power transfer during outages and provides stable backup power for sensitive electronics. The sealed SLA chemistry means maintenance is minimal — no watering or messy handling — and UL certification confirms adherence to safety standards.

Typical applications include UPS backup systems, emergency power for critical networks and servers, telecommunications equipment, and other standby power uses. The robust 35 AH capacity ensures extended runtime compared to smaller options, making these batteries ideal for extended backup scenarios and systems that demand reliable, steady current. With nut & bolt NB terminals, installation in the original Topaz 84126 configuration is straightforward; simply reuse your existing cables and hardware as instructed.

If you are seeking a reliable, long-lasting battery replacement that is factory-tested to meet OEM standards, this SigmasTek replacement UPS battery set is an excellent choice for the Topaz 84126. It combines performance, safety, and convenience in one package.

Ready to restore full backup capability to your Topaz 84126? Add this long-lasting, high-performance UPS battery set to your cart now and experience dependable power protection. Contact our customer service any time at (800) 657-1303 for assistance.


Payment & Security

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