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SigmasTek  |  SKU: BW-14036

FirstPower FP645HR High Performance Replacement Battery 1.59 lb

21% off
Sale price $21.99 USD Regular price $27.99
Shipping calculated at checkout.
Absorbent Glass Mat (AGM) technology for enhanced performance
Maintenance-free and spill-proof design for hassle-free use
U.L. Recognized and CE Certified for safety and reliability
Brand new and factory fresh ensuring longevity and quality
1 year warranty for peace of mind and guaranteed satisfaction
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Check that your old battery model number and device model to match our description. This makes sure they work together.


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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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⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

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


Volts & Amps

6 Volts | 4.5 AH

Terminal Type

F1

FirstPower FP645HR Replacement Battery — Compatible with FirstPower FP645HR

Restore dependable power to your FirstPower FP645HR with this precision-engineered replacement battery. Offering full compatibility and designed to meet or exceed OEM SLA specifications, this high-performance replacement battery delivers consistent, long-lasting performance for critical systems. With AGM technology and a maintenance-free, spill-proof design, the FP645HR replacement is built for safety, reliability, and trouble-free operation.

Key Specifications

  • Model Compatibility: FirstPower FP645HR
  • Brand: SigmasTek
  • Voltage: 6 Volts
  • Capacity: 4.5 AH
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Design: Maintenance-Free with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty

Benefits

Built for durability and extended service life, this replacement battery uses AGM technology to offer improved charge acceptance, resistance to leakage, and enhanced vibration tolerance. Its maintenance-free construction reduces the need for regular checks or fluid additions, while spill-proof design offers safer installation and operation. As a high-performance battery, it reliably supplies power under load and is a solid choice for systems where uptime is critical.

The FP645HR replacement battery is ideal for a broad range of applications, including UPS units, emergency lighting and exit signs, alarm and security systems, medical equipment, and portable tools that need a dependable 6V source. U.L. Recognition and CE certification provide assurance of quality and compliance, and the factory-fresh condition coupled with a 1 year warranty adds protection and value for buyers.

If you’re searching for a long-lasting battery replacement for your FirstPower FP645HR, this product offers the dependable performance and safety features necessary for mission-critical and everyday uses alike. It’s an affordable, compatible alternative to OEM batteries that doesn’t sacrifice quality.

Don’t wait—buy this FirstPower FP645HR replacement battery today to ensure uninterrupted power and reliable operation for your equipment.

Technical Specifications

Voltage6 Volts
Amp Hours4.5 AH
Terminal TypeF1
Length (in.)2.76
Width (in.)1.86
Height (in.)3.94
Weight (lb.)1.59

Product Highlights

  • Brand Replacement : FirstPower FP645HR Battery
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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