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SigmasTek  |  SKU: BW-5251

Compaq 142228-005 UPS High Performance Replacement Battery Set

Sale price $77.60 USD Regular price $112.53
Shipping calculated at checkout.

➤ Includes 2 brand new SigmasTek SP12-18HR batteries, 12 Volts 18 AH each

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

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

➤ Low self-discharge and high vibration resistance for long-lasting reliability

➤ U.L. recognized, CE certified, and backed by a 1-year warranty


📦🚀 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 | 18 Ah

Terminal Type

Nut & Bolt

Replacement Battery Set for Compaq 142228-005 UPS (SigmasTek SP12-18HR)

Designed specifically for the Compaq 142228-005 Uninterruptible Power Supply, this replacement UPS battery set delivers reliable performance, dependable compatibility, and the power you need to keep critical equipment running. Each set includes two brand new SigmasTek SP12-18HR batteries engineered for high rate discharge applications, offering superior output when brief, high-power bursts are required. Whether you're servicing a data center UPS or maintaining emergency backup systems, this kit is a high-performance UPS battery option that restores runtime and reliability to your Compaq 142228-005 unit.

Key Specifications

  • Battery Model: SigmasTek SP12-18HR (set of 2)
  • Voltage: 12 Volts
  • Capacity: 18 AH (amp-hours)
  • Terminal Type: Nut & Bolt
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof
  • Features: Low Self-discharge, High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatibility: Compaq 142228-005 UPS

Benefits

This replacement UPS battery set delivers a long-lasting battery solution built to withstand demanding environments. The high rate discharge design provides robust short-term power for surge events and rapid load changes, making these batteries ideal for UPS systems that must support servers, network equipment, or medical devices during transfer events. Valve regulated, spill proof construction reduces maintenance and increases safety, while low self-discharge ensures the batteries retain capacity during storage so your Compaq 142228-005 is ready when you need it.

Durability is built in with high vibration resistance and industry certifications (U.L. and CE), giving you confidence in both performance and safety. As a high-performance UPS battery, the SigmasTek SP12-18HR set is factory fresh and thoroughly tested to meet or exceed OEM expectations. Typical applications include Uninterruptible Power Supply (UPS) units, emergency power supply systems, and battery powered tools that require dependable, repeatable power delivery. Because these units use nut & bolt terminals, be sure to reuse the existing cables and hardware from your original configuration for a proper installation.

For technicians and facilities managers who prioritize uptime, this replacement UPS battery is an efficient, cost-effective way to restore runtime and protect equipment against power interruptions. With a 1 year warranty and our tested quality assurance, you get peace of mind along with a long-lasting battery that performs when it matters most.

Ready to replace the batteries in your Compaq 142228-005? Order this high-performance UPS battery set today and restore reliable backup power quickly.


Payment & Security

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