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SigmasTek  |  SKU: BW-5978

ADT Security 804208 High Performance Alarm Replacement Battery 4.08 lb

23% off
Sale price $30.99 USD Regular price $39.99
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Compatible replacement for ADT Security 804208 alarm battery
Uses Absorbent Glass Mat (AGM) technology for reliable performance
Maintenance-free and spill-proof design for safety and convenience
U.L. Recognized and CE Certified for quality assurance
Includes 1-year warranty and factory-fresh condition
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

6 Volts | 12 Ah

Terminal Type

F1

Replacement ADT Security 804208 Battery — Compatible with ADT Security 804208

Keep your ADT security equipment operating at peak reliability with a replacement battery specifically made for the ADT Security 804208 model. This high-performance, factory-fresh SLA battery meets or exceeds OEM specifications and delivers the dependable standby power required by alarm and security systems. Trust the compatibility and safety certifications to provide consistent, long-lasting service.

Key Specifications

  • Model Compatibility: ADT Security 804208
  • Battery Type: Absorbent Glass Mat (AGM) Technology
  • Voltage: 6 Volts
  • Capacity: 12 Ah
  • Terminal: F1
  • Brand: SigmasTek
  • Design: Maintenance-Free with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatible Applications: Access Control Systems; Home Alarm Systems; Burglar Alarm Systems; Security Systems; Power Supplies

Benefits

This replacement battery is built to perform in demanding security environments. The AGM construction ensures a sealed, maintenance-free design that prevents spills and reduces service needs. As a high-performance battery, it supports steady current delivery and quick recovery between discharge events—exactly what alarm panels, access control systems, and monitoring devices require.

Installers and facility managers choose this long-lasting battery because it combines certified safety, consistent runtime, and compact form factor suited to ADT panels. With U.L. recognition and CE certification, the ADT Security 804208 replacement provides confidence in both safety and performance. Use it to maintain backup power for security systems, power supplies, UPS units, and emergency systems.

  • Durability: Robust sealed design withstands vibration and minimizes maintenance.
  • Long Life: Reliable across many charge/discharge cycles for sustained standby use.
  • High Performance: Stable output under load for uninterrupted alarm and control operation.
  • Typical Applications: Access control, home and commercial alarm systems, burglar alarms, security systems, UPS and power supply backup.

Don’t risk downtime—replace your ADT Security 804208 battery now. Add this dependable, long-lasting replacement battery to your cart and protect your security systems with a product backed by a 1 year warranty.

Technical Specifications

Voltage6 Volts
Amp Hours12 Ah
Terminal TypeF1
Length (in.)5.95
Width (in.)2.0
Height (in.)3.7
Weight (lb.)4.08

Product Highlights

  • Brand Replacement : ADT Security 804208
  • Manufacturer: SigmasTek
  • Product Type: Security Alarm
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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