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SigmasTek  |  SKU: BW-13041

Silent Knight 5204 Compatible Replacement Battery

Sale price $34.70 USD Regular price $40.34
Shipping calculated at checkout.

➤ Meets or exceeds OEM SLA battery specifications for perfect Silent Knight 5204 compatibility

➤ Uses advanced Absorbent Glass Mat (AGM) technology for reliable performance

➤ Maintenance-free and spill-proof design ensures safe, hassle-free use

➤ U.L. Recognized and CE Certified for quality and safety assurance

➤ Includes a 1-year warranty for peace of mind and durability


📦🚀 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

Silent Knight 5204 Replacement Battery — Compatible with Silent Knight 5204

Ensure your emergency lighting and security systems remain fully operational with the Silent Knight 5204 replacement battery. Designed for full compatibility with the Silent Knight 5204 model, this replacement battery delivers reliable output, consistent performance, and the safety certifications required for professional installations. If you need a dependable, high-performance battery to protect people and property in critical moments, this long-lasting battery is an ideal choice.

Key Specifications

  • Model Compatibility: Silent Knight 5204
  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 12 Ah
  • Terminal Type: F2
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Design: Maintenance-Free Design
  • Construction: Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty

Benefits

This replacement battery leverages AGM technology to provide dependable charge acceptance and minimal maintenance. The maintenance-free, spill proof construction reduces service needs and enhances installation safety in cabinets and enclosures. U.L. and CE certifications validate the unit for commercial and residential use, ensuring you receive a safe, compliant product that performs when it matters most.

Durability and long life are core strengths of this high-performance battery: it is engineered to provide consistent discharge and recharge cycles, keeping emergency lighting and safety systems operational during outages. Typical applications include:

  • Emergency lighting and exit sign backup
  • Security alarm systems and fire alarm panels
  • Medical equipment requiring sealed backup power
  • Consumer electronics and home & garden backup devices
  • UPS systems, emergency power solutions, and portable power tools needing sealed lead-acid reliability

Whether you manage a facility’s life-safety systems or need a dependable replacement for consumer gear, the Silent Knight 5204 replacement battery offers the stability and certification you demand. It’s a cost-effective, long-lasting battery that aligns with OEM performance.

Don’t wait until an outage exposes vulnerabilities. Buy this Silent Knight 5204 replacement battery today to secure a reliable, high-performance battery backup with a 1 year warranty. Add to cart now and ensure uninterrupted protection for your systems.


Payment & Security

Payment methods

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