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Brightway Group  |  SKU: BW-10997

Sentry 640 High Performance Replacement Battery 1.5 lb

15% off
Sale price $21.99 USD Regular price $25.99
Shipping calculated at checkout.
6-volt, 4.5-amp hour capacity for reliable power
High-quality F1 terminals ensure secure connections
Guaranteed compatibility with Sentry 640 emergency lights
Durable design supports long-lasting emergency lighting
Trusted Bright Way brand for 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.

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 | 5 AH

Terminal Type

F1

Sentry 640 Replacement Battery by Bright Way — Compatible with Sentry 640 Emergency Light

Restore full emergency lighting capability with the Bright Way Sentry 640 Replacement Battery, crafted to fit the Sentry 640 emergency light. This reliable, compact power pack delivers the stable output needed for emergency illumination, providing peace of mind for building owners, maintenance teams, and safety officers. The unit combines compatibility, performance, and ease of installation, making it a smart choice for routine replacements and emergency preparedness.

Key Specifications

  • Brand: Bright Way
  • Compatible Model: Sentry 640
  • Voltage: 6V
  • Capacity: 4.5Ah
  • Terminal Type: F1

Benefits

As a high-performance battery designed for emergency lighting, the Sentry 640 replacement battery provides reliable, long-lasting power that supports safety-critical systems. Its construction emphasizes durability and consistent performance over repeated charge/discharge cycles, making it a dependable long-lasting battery choice for commercial and residential installations.

The F1 terminal allows for quick, secure connections, reducing service time and minimizing the risk of poor contacts that can lead to performance issues. This replacement battery is ideally suited to applications including UPS back-up for small systems, emergency and exit lighting, backup power for control circuits, and other low-voltage safety devices. Its predictable discharge profile helps ensure your Sentry 640 emergency light remains illuminated for the duration required by safety codes and building protocols.

Bright Way’s consistent manufacturing standards ensure each unit conforms to expected dimensions and electrical performance, so you get a straightforward drop-in replacement without compatibility hassles. Choosing this replacement battery helps maintain operational readiness and reduces the need for frequent battery swaps.

Ready to secure reliable emergency power? Buy the Sentry 640 Replacement Battery by Bright Way today and keep your emergency lighting performing at its best.

Technical Specifications

Voltage6 Volts
Amp Hours5 AH
Terminal TypeF1
Length (in.)2.76
Width (in.)1.85
Height (in.)3.98
Weight (lb.)1.5

Product Highlights

  • Brand Replacement : Sentry 640 Replacement
  • Manufacturer: Brightway Group
  • Product Type: Emergency Power
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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