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SigmasTek  |  SKU: BW-6435

Altronix AL802ULADA High-Performance Alarm Replacement Battery Set

Sale price $58.43 USD Regular price $70.55
Shipping calculated at checkout.

➤ Compatible replacement for Altronix security alarm systems

➤ Compact size: 5.95" L x 3.86" W x 3.7" H for easy installation

➤ Reliable 12 Volt, 12 Ah capacity for long-lasting power

➤ Standard F2 terminal type ensures secure connections

➤ Durable design weighing 14.5 lbs for stable performance


📦🚀 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 | 12 Ah

Terminal Type

F2

SigmasTek 12V 12Ah F2 Replacement Battery — Compatible with Altronix Systems

Designed for reliable backup and continuous power, this SigmasTek 12 Volts 12 Ah F2 replacement battery is engineered to deliver consistent performance for Altronix-compatible security and alarm systems. Whether you need a dependable replacement battery for routine maintenance or to restore full runtime after heavy use, this high-performance battery provides stable voltage, predictable capacity, and a compact footprint. Built to meet the demands of security equipment and emergency power setups, it’s a long-lasting battery option that balances power density and durability for daily operation and standby readiness.

Key Specifications

  • Manufacturer: SigmasTek
  • Brand Replacement: Altronix
  • Type: Security Alarm
  • Voltage: 12 Volts
  • Amp Hours: 12 Ah
  • Terminal Type: F2
  • Length (in.): 5.95
  • Width (in.): 3.86
  • Height (in.): 3.7
  • Weight (lb.): 14.50

Benefits

This SigmasTek unit is a rugged, long-lasting battery built for demanding applications. Its sealed lead-acid construction provides dependable cycle life and low self-discharge, making it a smart choice for devices that must remain ready for months or years. As a high-performance battery, it supplies steady current for alarm panels, security control systems, and other sensitive electronics without sudden voltage drops. The F2 terminal type ensures secure connections in many standard enclosures and makes installation straightforward for service technicians and DIY users alike.

Durability: Designed for repeated charge and discharge cycles, the battery resists corrosion and swelling common in inferior cells, helping systems maintain reliable operation over time. Long life: With a rated 12 Ah capacity at 12 Volts, this replacement battery supports extended standby times and predictable runtime in real-world loads. Performance: Tight manufacturing tolerances and quality control deliver consistent power output ideal for UPS units, emergency lighting, alarm systems, and access control panels.

Typical applications include backup power for security and alarm systems, UPS and emergency power modules, communication equipment, and portable power tools or test equipment requiring a stable 12V source. Its compact dimensions (5.95" x 3.86" x 3.7") make it a convenient drop-in replacement for many Altronix-compatible installations where space is at a premium.

Ready to restore reliable backup power? Choose this SigmasTek 12V 12Ah F2 replacement battery to upgrade your system with a high-performance battery and enjoy the peace of mind that comes from a long-lasting battery solution. Click to purchase now and ensure your Altronix-compatible equipment stays protected.


Payment & Security

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