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SigmasTek  |  SKU: BW-13909

Yuntong YT-640 High Performance Replacement Battery 1.59 lb

24% off
Sale price $21.99 USD Regular price $28.99
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Meets or exceeds OEM Yuntong YT-640 SLA battery specifications
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, factory fresh with a 1-year warranty included
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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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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

6 Volts | 4.5 AH

Terminal Type

F1

Yuntong YT-640 Replacement Battery — Compatible with Yuntong YT-640

Get dependable power with this replacement battery engineered for compatibility with the Yuntong YT-640. Designed to meet or exceed OEM SLA specifications, this replacement battery offers the reliability and performance you need for critical applications. Featuring Absorbent Glass Mat (AGM) technology and a maintenance-free, spill-proof build, this SigmasTek high-performance battery ensures consistent output and dependable service life — a practical long-lasting battery solution for home, office, or industrial use.

Key Specifications

  • Model Compatibility: Yuntong YT-640
  • Replacement For: Yuntong YT-640 SLA battery
  • Brand: SigmasTek
  • Voltage: 6 Volts
  • Capacity: 4.5 AHF1
  • Technology: Absorbent Glass Mat (AGM)
  • Design: Maintenance-Free with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty

Benefits

This replacement battery provides robust durability and consistent performance. AGM construction increases resistance to vibration and enables reliable power output under load, which is essential for UPS systems, emergency lighting, and security equipment. As a maintenance-free battery, it eliminates routine fluid checks, minimizing service time and potential downtime.

The unit is U.L. Recognized and CE Certified, demonstrating adherence to recognized safety and quality standards. These certifications, combined with a brand new, factory fresh condition and a 1 Year Warranty, make this high-performance battery a trustworthy choice for both primary and standby applications. Typical uses include uninterruptible power supplies (UPS), alarm systems, telecommunications, mobility devices, and other critical systems where a long-lasting battery is required.

Because it is specifically designed as a direct replacement for the Yuntong YT-640, installation is quick and straightforward. The compatibility guarantee ensures the correct electrical and physical fit, reducing risk and simplifying maintenance.

Don’t wait until a power failure disrupts operations — purchase this Yuntong YT-640 replacement battery today for reliable, long-lasting performance and peace of mind.

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 : Yuntong YT-640 Battery
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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