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SigmasTek  |  SKU: BW-4836

Topaz PS12300 UPS Compatible Replacement Battery Set

Sale price $183.99 USD Regular price $268.20
Shipping calculated at checkout.

➤ Includes 2 brand new 12V 35AH SigmasTek SP12-35 NB batteries for full replacement

➤ High rate discharge design supports high power output over short periods

➤ Valve regulated, spill-proof construction for safe and maintenance-free use

➤ Low self-discharge and high vibration resistance for longer battery life

➤ U.L. Recognized and CE Certified with 1 Year warranty for reliability


📦🚀 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 SP12-35 NB (12V 35AH) for Topaz PS12300 UPS

Replace worn batteries in your Topaz PS12300 with this reliable, high-performance replacement UPS battery set designed for compatibility, strong discharge capability, and dependable operation. This set includes two SigmasTek SP12-35 NB batteries (12 Volts, 35 AH) specifically selected for UPS applications where consistent voltage, rapid discharge when required, and low maintenance are essential. These brand-new, factory-fresh batteries deliver superior performance and reliability so your Topaz PS12300 returns to peak emergency power readiness. Please note you must reuse all existing cables and hardware from your original configuration to connect the new UPS batteries.

Key Specifications

  • Battery model: SigmasTek SP12-35 NB
  • Voltage: 12 Volts
  • Capacity: 35 AH (amp-hours)
  • Quantity: 2 batteries per set
  • Terminal type: Nut & Bolt
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Feature: Low Self-discharge
  • Feature: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatible UPS model: Topaz PS12300
  • Typical applications: Uninterruptible Power Supply (UPS) Units, Emergency Power Supply, Battery Powered Tools

Benefits

These replacement batteries offer long-lasting battery performance and are engineered for demanding UPS duty cycles. The high rate discharge design provides powerful output for short bursts when your Topaz PS12300 requires extra power, making this a true high-performance UPS battery option. Valve-regulated, spill-proof construction and high vibration resistance increase durability in rack or floor-mounted UPS systems, while low self-discharge helps preserve stored capacity during periods of inactivity so the set is ready when you need it most.

Built to meet rigorous industry standards and carrying U.L. recognition and CE certification, this replacement UPS battery set is an ideal choice for mission-critical equipment and emergency power systems. Whether you’re restoring runtime for a workstation, server rack, or emergency lighting, these batteries deliver consistent output and superior performance. Technically trained staff test each battery to ensure it meets or exceeds OEM expectations for the Topaz PS12300, giving you confidence in both safety and reliability.

The compact, maintenance-free design minimizes installation fuss (reuse your existing cables and hardware) and the nut & bolt terminals provide a secure connection for reliable operation over the service life. Backed by a 1 Year Warranty, this set is a cost-effective way to restore your UPS to full capability with a long-lasting battery solution.

Ready to replace the batteries in your Topaz PS12300? Order this replacement UPS battery set today for fast shipping, or contact our customer service at for help choosing the right option. Buy now to restore protection with a dependable, high-performance UPS battery.


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