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SigmasTek  |  SKU: BW-3782

Compaq UP6003-2 UPS Compatible Replacement Battery Set

Sale price $149.10 USD Regular price $188.32
Shipping calculated at checkout.

➤ Set of 10 SigmasTek SP12-7.5HR batteries (12V 7.5AH) for Compaq UP6003-2 UPS

➤ Designed for high rate discharge to handle power surges efficiently

➤ Spill-proof valve regulated design with low self-discharge

➤ Factory fresh batteries with 1-year warranty and CE/U.L. certification

➤ Use original cables and hardware for seamless replacement


📦🚀 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

SigmasTek SP12-7.5HR Replacement Battery Set for Compaq UP6003-2 UPS

Return dependable backup power to your Compaq UP6003-2 with this complete replacement UPS battery set. Engineered for reliable short-duration, high-current discharge, these SigmasTek SP12-7.5HR batteries are ideal when you need a high-performance UPS battery that restores the UPS to OEM-level capability and provides consistent, safe operation under load.

Key Specifications

  • Battery model: SigmasTek SP12-7.5HR
  • Voltage: 12 Volts
  • Capacity: 7.5 AH
  • Quantity: 10 batteries included
  • Terminal type: F2
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Self-discharge: Low Self-discharge
  • Vibration resistance: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatibility note: Use all existing cables and hardware from original configuration to connect new UPS batteries

Benefits

These replacement batteries deliver durable, consistent power and are optimized for UPS environments where high discharge rates are sometimes necessary. Built to be spill proof and vibration resistant, they tolerate the rigors of rack-mounted or mobile installations and reduce the need for active maintenance. Low self-discharge ensures that the batteries hold charge longer when idle, contributing to a long-lasting battery lifecycle and reducing replacement frequency.

As a high-performance UPS battery option for the Compaq UP6003-2, this set restores the unit’s ability to support critical loads during brief outages or transitions to generator power. The U.L. recognition and CE certification demonstrate adherence to safety and quality standards, while the brand-new, factory-fresh status ensures you receive fresh cells with predictable performance. Typical applications include Uninterruptible Power Supply (UPS) units, emergency power supply systems, and battery powered tools where dependable short-term energy is required.

Installation reminder: you must reuse the cables and hardware from your original Compaq UP6003-2 configuration to properly connect these replacement batteries. Our staff tests each set to ensure compatibility and performance that meets or exceeds OEM specifications.

Purchase this replacement UPS battery set for your Compaq UP6003-2 today to secure a reliable, long-lasting battery solution with fast shipping and a 1 year warranty. Restore confidence in your backup power now.



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