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SigmasTek  |  SKU: BW-6350

ADT Security 476630 High Performance Alarm Replacement Battery 18.1 lb

15% off
Sale price $111.99 USD Regular price $130.99
Shipping calculated at checkout.
Meets or exceeds original OEM battery specifications for reliable performance
Valve regulated, spill-proof design ensures safe, maintenance-free operation
U.L. recognized and CE certified for guaranteed quality and safety
Rugged plastic case protects battery for long-lasting durability
Includes 1 brand new, factory fresh SP12-26 NB (12V 26AH) 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.

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Volts & Amps

12 Volts | 26 Ah

Terminal Type

Nut & Bolt

ADT Security 476630 Replacement Battery - SP12-26 NB (12 V 26 AH)

Keep your ADT Security 476630 system running reliably with this compatible replacement battery. Designed to meet or exceed the OEM specifications, the SP12-26 NB delivers dependable performance and peace of mind for home and business security. This high-performance battery is engineered for consistent power delivery, long standby life, and safe, maintenance-free operation — ideal when you need a trusted power source for alarm panels and security equipment.

Key Specifications

  • Compatible Model: ADT Security 476630
  • Battery Model Included: SP12-26 NB
  • Voltage: 12 Volts (12 V)
  • Capacity: 26 Ampere-hours (26 AH)
  • Terminal Type: Nut & Bolt
  • Construction: Valve Regulated, Spill Proof
  • 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

  • Durable, maintenance-free construction — the valve regulated, spill proof design and rugged plastic case make this a durable replacement battery that resists damage and performs reliably in everyday use.
  • Long-lasting battery life — with a 26 AH capacity and factory-fresh condition, this battery offers extended standby runtime so your alarm system stays powered longer during outages.
  • High performance under load — UL recognition and CE certification ensure consistent, predictable output for critical alarm and security components. It is a true high-performance battery suited for demanding applications.
  • Versatile applications — perfect for access control systems, home alarm systems, burglar alarms, security systems, and power supplies. It also serves well for emergency lighting and other standby power needs.
  • Safe and convenient installation — nut & bolt terminals provide a secure connection point for quick replacement in the field.
  • Ideal for emergency power and UPS backup scenarios where reliable, long-lasting battery power is required; also appropriate for tools and portable systems that accept 12V sealed lead acid batteries.

Ready to replace your failing cell and restore full protection? Order this ADT Security 476630 SP12-26 NB replacement battery today and enjoy reliable, long-lasting battery performance backed by a 1 year warranty. Purchase now to ensure uninterrupted protection.

Technical Specifications

Voltage12 Volts
Amp Hours26 Ah
Terminal TypeNut & Bolt
Length (in.)6.56
Width (in.)6.97
Height (in.)4.92
Weight (lb.)18.08

Product Highlights

  • Brand Replacement : ADT Security 476630
  • Manufacturer: SigmasTek
  • Product Type: Security Alarm
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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