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SigmasTek  |  SKU: BW-6293

ADT Security 4520638 High Performance Compatible Replacement Battery for Alarm Systems 29.14 lb

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Sale price $150.99 USD Regular price $166.99
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Meets or exceeds original OEM specifications for reliable performance
Valve regulated, spill-proof design for safety and maintenance-free use
U.L. recognized and CE certified for quality assurance
Durable rugged plastic case protects against damage and extends battery life
Includes 1 brand new, factory fresh 12V 40AH battery with 1-year warranty
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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

12 Volts | 40 Ah

Terminal Type

Nut & Bolt

ADT Security 4520638 Replacement Battery - SP12-40 NB (Compatible with 4520638)

Maintain continuous protection for your ADT Security 4520638 system with this reliable replacement battery. The SP12-40 NB (12 V 40 AH) is built to match or exceed OEM battery specifications, offering dependable reserve capacity, consistent charging behavior, and robust physical construction. When you need a long-lasting battery to support your security infrastructure, this ADT-compatible solution delivers the performance and peace of mind required.

Key Specifications

  • Compatible Model: ADT Security 4520638
  • Included Battery: 1 × SP12-40 NB
  • Voltage: 12 Volts
  • Capacity: 40 AH
  • Terminal Type: Nut & Bolt
  • Construction: Valve Regulated Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Case: Rugged Plastic Case and Cover
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Brand: SigmasTek

Benefits

This replacement battery provides the durability and long-term reliability required for security, access control, and power supply applications. Its valve regulated, spill-proof design minimizes maintenance and safety concerns, while the rugged housing protects internal components against shocks and environmental stress. As a high-performance battery rated at 40 AH, it supports extended runtimes during outages and frequent discharge cycles, making it a dependable, long-lasting battery option.

Suitable for home and commercial alarm systems, burglar alarm installations, access control, and power supply units, the SP12-40 NB is also an excellent choice for UPS systems, emergency power backups, and auxiliary power for field tools and devices. Nut & bolt terminals give you secure and vibration-resistant connections, which is especially useful in installations with movement or where secure torque is critical.

Backed by U.L. recognition, CE certification, and a 1 year warranty, this ADT 4520638-compatible battery is sold factory fresh and inspected for quality. It represents a cost-effective way to maintain original performance standards and keep your security system operating without interruption.

Don’t wait until a power failure affects your security system. Purchase this high-performance replacement battery for your ADT Security 4520638 today and ensure continuous, reliable protection.

Technical Specifications

Voltage12 Volts
Amp Hours40 Ah
Terminal TypeNut & Bolt
Length (in.)7.76
Width (in.)6.5
Height (in.)6.69
Weight (lb.)29.11

Product Highlights

  • Brand Replacement : ADT Security 4520638
  • Manufacturer: SigmasTek
  • Product Type: Security Alarm
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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