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SigmasTek  |  SKU: BW-14129

FirstPower LFP636 High Performance Replacement Battery 12.11 lb

23% off
Sale price $97.99 USD Regular price $127.99
Shipping calculated at checkout.
Absorbent Glass Mat (AGM) technology for enhanced performance
Maintenance-free design with spill-proof construction for safety
U.L. recognized and CE certified for quality assurance
Brand new and factory fresh for reliable use
1-year warranty ensures peace of mind and durability
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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 | 36 Ah

Terminal Type

F2

FirstPower LFP636 Replacement Battery — Compatible with FirstPower LFP636

Restore dependable backup power with this FirstPower LFP636 replacement battery engineered to meet or exceed the OEM SLA specifications. Offering consistent performance, spill-proof safety, and factory-fresh reliability, this sealed lead acid unit is a smart choice when you need a long-lasting battery for critical systems. Designed for compatibility and value, it is an ideal replacement battery for FirstPower LFP636 applications.

Key Specifications

  • Model Compatibility: FirstPower LFP636
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Design: Maintenance-Free Design with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Listing Info: FirstPower LFP636 Battery (Replacement)*SigmasTek*6 Volts36 AhF2
  • Voltage: 6 Volts
  • Capacity: 36 Ah
  • Terminal Type: F2

Benefits

Built with Absorbent Glass Mat (AGM) technology, this replacement battery delivers superior mechanical robustness and excellent charge acceptance compared with flooded designs. The maintenance-free, spill-proof construction reduces routine upkeep and enhances safety during installation and operation. With U.L. recognition and CE certification, this long-lasting battery offers confidence for commercial and residential installations.

As a high-performance battery replacement for FirstPower LFP636, it performs reliably under load, making it suitable for UPS systems, emergency lighting, security alarm panels, medical backup units, and various portable power tools and equipment. The stable voltage output and strong recharge characteristics help prolong the life of connected electronics and ensure consistent readiness during power interruptions. The one-year warranty and brand new factory condition further back the product’s reliability.

This replacement battery combines the practical benefits of AGM chemistry with a form-fit compatibility to minimize installation time and reduce downtime for critical systems. Whether you are maintaining an office UPS, equipping an emergency lighting bank, or replacing an aging SLA pack, this FirstPower LFP636 replacement offers an immediate upgrade in dependability.

Don’t wait until a failure occurs—purchase this FirstPower LFP636 replacement battery now to secure long-lasting, high-performance power for your equipment.

Technical Specifications

Voltage6 Volts
Amp Hours36 Ah
Terminal TypeF2
Length (in.)6.25
Width (in.)3.35
Height (in.)6.5
Weight (lb.)12.1

Product Highlights

  • Brand Replacement : FirstPower LFP636 Battery
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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