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SigmasTek  |  SKU: BW-3281

Alpha Technologies ALI Plus 1250RM UPS High Performance Compatible Replacement Battery Set

Sale price $49.94 USD Regular price $72.42
Shipping calculated at checkout.

➤ Includes 3 brand new SigmasTek SP12-7.5HR batteries (12V 7.5AH)

➤ High rate discharge design for reliable short-term power output

➤ Valve regulated, spill-proof construction for safe operation

➤ Low self-discharge and high vibration resistance for durability

➤ U.L. recognized, CE certified, with 1 year warranty for peace of mind


📦🚀 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 | 7.5 Ah

Terminal Type

F2

Replacement Battery Set for Alpha Technologies ALI Plus 1250RM UPS

Restore reliable backup power with this compatible replacement UPS battery set for the Alpha Technologies ALI Plus 1250RM. Designed for dependable performance, this kit delivers high-rate discharge capability and proven reliability for your mission-critical UPS. Whether you need a fast replacement to return your system to service or an upgrade to ensure consistent runtime, this high-performance UPS battery set provides a cost-effective, long-lasting battery solution engineered for Alpha Technologies systems.

Key Specifications

  • Compatible UPS Model: Alpha Technologies ALI Plus 1250RM
  • Includes: 3 SigmasTek SP12-7.5HR batteries
  • Voltage: 12 Volts
  • Capacity: 7.5 AH
  • Terminal: F2
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Low Self-discharge
  • High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Replacement Brand: SigmasTek (compatible with Alpha Technologies)

Benefits

This replacement UPS battery set is crafted for durability and dependable service. The valve regulated spill proof construction and low self-discharge characteristics help preserve capacity during storage and deliver consistent performance when called upon. High vibration resistance and U.L./CE certifications give you confidence in safety and reliability under demanding operating conditions.

As a high-performance UPS battery option, these SigmasTek SP12-7.5HR cells are optimized for high rate discharge applications—ideal for the ALI Plus 1250RM where short bursts of higher power output are required. Customers looking for a long-lasting battery solution appreciate the factory-fresh condition and industry-standard warranty that protect your investment.

  • Durability: Robust construction for repeated charge/discharge cycles and vibration-prone environments.
  • Long life: Low self-discharge preserves capacity between uses for reliable emergency readiness.
  • High performance: High rate discharge design supports UPS loads that demand rapid power delivery.
  • Typical applications: Uninterruptible Power Supply (UPS) units, emergency power supply systems, and battery-powered tools.

This replacement UPS battery kit is hand-tested by experienced technicians to meet or exceed OEM specifications for Alpha Technologies ALI Plus 1250RM systems. If you want a trusted, high-performance UPS battery that delivers reliable uptime and a long-lasting battery life, this set is ready to install using your existing cables and hardware. Buy now to restore protection and keep critical equipment running.


Payment & Security

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