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SigmasTek  |  SKU: BW-13681

FirstPower FP665-F2 High Performance Replacement Battery 3.02 lb

10% off
Sale price $35.99 USD Regular price $39.99
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Compatible replacement for FirstPower FP665-F2 model
Uses advanced Absorbent Glass Mat (AGM) technology
Maintenance-free and spill-proof design for safety
U.L. Recognized and CE Certified for quality assurance
Comes brand new with a 1-year warranty guarantee
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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 | 9 AH

Terminal Type

F2

Replacement FirstPower FP665-F2 Battery — Compatible with FirstPower FP665-F2

Replace your failing battery with a compatible, high-quality replacement engineered for the FirstPower FP665-F2 model. This replacement battery is designed for dependable performance, safety, and ease of installation, delivering the reliable power you need for critical applications. For anyone seeking a high-performance battery that provides long-lasting battery life and OEM-grade compatibility, the FP665-F2 replacement is an excellent choice.

Key Specifications

  • Compatible Model: FirstPower FP665-F2
  • Replacement Brand: SigmasTek
  • Battery Type: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Voltage: 6 Volts
  • Capacity: 9 AH (Ampere-hours)
  • Terminal Type: F2
  • Design: Maintenance-Free with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty

Benefits

The FP665-F2 replacement battery offers robust durability and consistent output, suited for both standby and cyclic applications. AGM construction provides superior charge acceptance, reduced maintenance, and resistance to vibration and shock — all important for equipment that sees regular use or must remain operational during power events. The maintenance-free, spill proof design eliminates the need for routine electrolyte checks and reduces installation risks.

Safety certifications, including U.L. recognition and CE marking, confirm the battery meets international standards for quality and safety. The 6 Volt, 9 AH capacity is ideal for small UPS systems, emergency lighting, alarm and security panels, portable medical equipment, and a variety of other low-voltage devices that demand reliable stored energy. The F2 terminal offers a secure, easy-to-connect interface for compatible devices.

Arriving brand new and factory fresh, this replacement battery includes a 1 year warranty to protect your purchase and reduce concerns about early defects. It’s a cost-effective way to extend the life of your FirstPower FP665-F2 device and avoid costly downtime.

Don’t wait until a power failure affects your system. Purchase this FirstPower FP665-F2 replacement battery today to get a reliable, high-performance battery that provides long-lasting battery life and trusted compatibility. Add it to your cart now and secure dependable backup power.

Technical Specifications

Voltage6 Volts
Amp Hours9 AH
Terminal TypeF2
Length (in.)5.94
Width (in.)1.34
Height (in.)3.7
Weight (lb.)3.02

Product Highlights

  • Brand Replacement : FirstPower FP665-F2 Battery
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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