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SigmasTek  |  SKU: BW-5534

OPTI-UPS EL5000-AL (Excal-5000) UPS High-Performance Compatible Replacement Battery Set

Sale price $2,599.80 USD Regular price $3,769.71
Shipping calculated at checkout.

➤ SigmasTek12 Volts100 AhInternal ThreadOPTI-UPS EL5000-AL replacement battery

➤ Reliable and long-lasting performance

➤ OEM compatible and easy to install

➤ Durable construction for UPS systems

➤ High-quality power solution


📦🚀 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 | 100 Ah

Terminal Type

Internal Thread

SigmasTek 12 Volts 100 Ah Internal Thread - Compatible with OPTI-UPS EL5000-AL

When uptime matters, trust this SigmasTek replacement UPS battery to safeguard your OPTI-UPS EL5000-AL. Built for consistent performance and reliable backup power, this battery is an essential component for protecting servers, networking gear, medical equipment, and emergency systems. Engineered for compatibility and dependable output, it’s a practical choice for both business-critical and industrial power protection needs.

Key Specifications

  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 100 Ah
  • Terminal Type: Internal Thread
  • Compatible UPS Model: OPTI-UPS EL5000-AL

Benefits

This replacement UPS battery delivers a combination of high performance and long-term reliability. Its 100 Ah capacity offers extended runtime for your OPTI-UPS EL5000-AL, ensuring equipment remains powered through longer outages and reducing the frequency of emergency interventions. As a high-performance UPS battery, it provides stable voltage under load and fast response when a sudden draw is required.

Durability: Designed to perform across many charge cycles, this battery is a rugged solution for the demanding environment of UPS deployments. Long life: High amp-hour capacity and quality construction support prolonged service life and reduce maintenance intervals. High performance: Stable discharge characteristics protect sensitive electronics and provide dependable energy delivery for critical loads. Typical applications include Uninterruptible Power Supply (UPS) units, emergency power supply systems, and battery-powered tools that benefit from reliable short-term power bursts or extended backup capacity.

The internal thread terminals provide secure mechanical and electrical connections within the OPTI-UPS EL5000-AL battery compartment. Proper installation by qualified personnel will ensure optimal performance and adherence to safety standards. Choose this SigmasTek replacement UPS battery for a dependable, long-lasting battery solution.

Protect your systems now—order this high-performance, long-lasting replacement UPS battery for your OPTI-UPS EL5000-AL today and ensure continuous, reliable backup power when it counts.


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