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SigmasTek  |  SKU: BW-5793

ADT Security 7603 Compatible Replacement Battery 1.65 lb

14% off
Sale price $30.99 USD Regular price $35.99
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Compact size: 3.78 inches length, 0.98 inches width, 2.44 inches height
Reliable 12-volt power output
Lightweight design at 1.65 lbs for easy handling
Suitable replacement for ADT Security systems
0.8 Ah capacity ensures consistent performance
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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 | 0.8 Ah

Terminal Type

Special Connector

12V 0.8Ah Replacement Battery — Compatible with ADT Security (SigmasTek)

This compact 12V 0.8Ah replacement battery is designed to be compatible with ADT Security equipment and other security systems that require reliable backup power. Manufactured by SigmasTek, the unit offers a balance of performance and portability, providing steady, dependable energy for alarm panels, sensors, and monitoring devices. It’s a high-performance battery solution intended to maintain protection and system readiness in residential and commercial installations.

Key Specifications

  • Manufacturer: SigmasTek
  • Brand Replacement: ADT Security
  • Voltage: 12 Volts
  • Amp Hours: 0.8 Ah
  • Length: 3.78 inches
  • Width: 0.98 inches
  • Height: 2.44 inches
  • Weight: 1.65 lb

Benefits

As a replacement battery built to support ADT-compatible devices, this unit provides long-lasting battery life in a compact package. The design focuses on durability, reliable charge acceptance, and consistent discharge behavior, making it suitable for alarm systems, small uninterruptible power supplies, emergency notification devices, and other low-power backup applications. Its compact footprint allows it to fit into controllers and modules where space is limited while still offering dependable standby power.

Technicians and installers will appreciate the straightforward replacement process — verify dimensions and existing connections, then swap in the new battery. The SigmasTek replacement battery is intended to meet or exceed original specifications so that system performance and alarm readiness remain uncompromised. Its construction emphasizes low maintenance and safe handling for indoor environments.

Typical applications include security panels, sensor hubs, small UPS units for monitoring equipment, test tools, and emergency lighting circuits where short-duration backup is necessary. The unit’s reliable output and compact size make it an excellent choice for routine maintenance and emergency replacements.

Don’t let a weak or failed battery compromise your ADT-compatible security system. Purchase this long-lasting, high-performance replacement battery today to restore full protection and peace of mind.

Technical Specifications

Voltage12 Volts
Amp Hours0.8 Ah
Terminal TypeSpecial Connector
Length (in.)3.78
Width (in.)0.98
Height (in.)2.44
Weight (lb.)1.65

Product Highlights

  • Brand Replacement : ADT Security 7603
  • Manufacturer: SigmasTek
  • Product Type: Security Alarm
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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