Compaq 204503-001 UPS Compatible Replacement Battery Set
⚠️ 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 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
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
⚠️ 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 | 5.5 Ah
Terminal Type
F2
Replacement Battery Set for Compaq 204503-001 UPS (10 x SigmasTek SP12-5.5HR)
Upgrade the reliability of your Compaq 204503-001 Uninterruptible Power Supply with this brand new, factory-fresh replacement UPS battery set. Specifically designed for high-rate discharge applications, this kit delivers dependable performance when you need burst power for critical loads. These SigmasTek SP12-5.5HR cells ensure consistent uptime, low self-discharge and rugged vibration resistance, making them an excellent choice for server rooms, network closets, and emergency power systems that rely on a replacement UPS battery designed to meet or exceed OEM expectations.
Key Specifications
- Brand: SigmasTek
- Model: SP12-5.5HR
- Quantity: 10 batteries (complete set)
- Voltage: 12 Volts
- Capacity: 5.5 Ah (amp-hours)
- Terminal: F2
- 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
- Compatible UPS Model: Compaq 204503-001
Benefits
This replacement UPS battery set provides a high-performance UPS battery solution for Compaq 204503-001 systems. Engineered for durability and long life, the high rate discharge design supplies the higher power needed over short periods without compromising cycle life. The valve regulated, spill-proof construction reduces maintenance and improves safety in confined UPS enclosures. Low self-discharge helps preserve capacity during storage and infrequent use, so your batteries remain ready when called upon.
These SigmasTek units are U.L. recognized and CE certified, offering reassurance for commercial and mission-critical installations. Their high vibration resistance increases reliability in environments subject to movement or equipment noise. Typical applications include Uninterruptible Power Supply (UPS) units, emergency power supply systems, and battery-powered tools that may require a short, powerful discharge. Whether replacing worn cells or performing preventative maintenance, this long-lasting battery kit helps maintain uptime and protect sensitive electronics.
Technically tested to meet or exceed OEM specifications, the set requires re-use of your original cables and hardware for installation—please use all existing connectors from the original configuration to ensure proper fit and safe operation. For help with selection or installation, our knowledgeable customer service team is available to assist.
Ready to restore full protection to your Compaq 204503-001? Order this high-performance, long-lasting battery replacement UPS battery set today and enjoy fast shipping on in-stock items. Buy now to secure reliable emergency power and extended system uptime.
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