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SigmasTek  |  SKU: BW-4905

Alpha Technologies UPS 125 High Performance Replacement Battery

Sale price $92.48 USD Regular price $134.10
Shipping calculated at checkout.

➤ Replacement battery for Alpha Technologies UPS 125 meets OEM specs

➤ AGM technology offers superior discharge and recharge cycles

➤ Maintenance-free with spill-proof construction for safety

➤ U.L. Recognized and CE Certified for quality assurance

➤ 1 year warranty with guaranteed fit


📦🚀 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

Alpha Technologies UPS 125 Replacement Battery — Compatible with Alpha Technologies UPS 125

Optimized for the Alpha Technologies UPS 125, this replacement UPS battery provides dependable backup power, proven safety features, and stable performance. Built to meet or exceed the original SLA specifications, it’s an effective solution for maintaining uptime in critical applications like network hardware, small servers, and point-of-sale systems. The AGM construction combined with a high-rate discharge profile creates a high-performance UPS battery that responds reliably during outages.

Key Specifications

  • Absorbent Glass Mat (AGM) Technology
  • High Rate Discharge Design
  • Maintenance-Free Design with Spill Proof Construction
  • U.L. Recognized and CE Certified
  • Brand New, Factory Fresh
  • 1 Year Warranty
  • Application: Emergency Power Supply
  • Application: Battery Powered Tools
  • SigmasTek
  • 12 Volts
  • 35 AH
  • Nut & Bolt
  • Alpha Technologies
  • Replacement for: Alpha Technologies UPS 125

Benefits

This long-lasting battery is designed to deliver sustained power and dependable performance over repeated charge cycles, making it an excellent replacement for the Alpha Technologies UPS 125. The maintenance-free AGM design eliminates the need for topping off and reduces the risk of spills, while the high-rate discharge capability ensures your equipment receives ample current during critical events. As a replacement UPS battery, it offers an effective blend of safety, value, and convenience.

Applicable across UPS systems, emergency power supplies, and battery-powered tools, this battery suits a variety of professional and residential needs. Certified to industry safety standards, factory-fresh quality and a one-year warranty provide additional peace of mind. Whether restoring backup capacity or proactively replacing aged batteries, this high-performance UPS battery is a practical choice to maintain uninterrupted operations.

Ready to upgrade the power protection for your Alpha Technologies UPS 125? Click to add this reliable replacement UPS battery to your cart now and ensure continuous, long-lasting backup power for your critical systems.


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