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SigmasTek  |  SKU: BW-13929

Unicell TLA645 High Performance Compatible Replacement Battery 1.59 lb

24% off
Sale price $21.99 USD Regular price $28.99
Shipping calculated at checkout.
Absorbent Glass Mat (AGM) technology for enhanced performance
Maintenance-free design with spill-proof construction
U.L. recognized and CE certified for safety and reliability
Brand new, factory fresh for optimal longevity
1 year warranty ensures peace of mind and quality assurance
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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

Unicell TLA645 Replacement Battery — Compatible with Unicell TLA645

When your Unicell TLA645 needs a dependable power source, choose this replacement battery built to match or exceed OEM SLA specifications. Designed for performance and compatibility, this high-performance battery gives you reliable rechargeability, maintenance-free convenience, and the safety of sealed lead acid technology—perfect for keeping critical systems online.

Key Specifications

  • Compatibility: Unicell TLA645
  • Chemistry: Rechargeable Sealed Lead Acid (SLA)
  • 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
  • Model Label: Unicell TLA645 Battery (Replacement)*SigmasTek*6 Volts4.5 AHF1

Benefits

This replacement battery offers enhanced durability and consistent performance across long service cycles. AGM construction provides a robust, vibration-resistant package that improves charge acceptance and reduces the likelihood of sulfation when used and charged correctly. Because it is sealed and maintenance-free, the battery is safe and simple to install—no refilling or special handling required.

As a long-lasting battery option, it is ideal for UPS backup, emergency power systems, alarm and security devices, healthcare equipment, telecommunications, and portable electronics or tools. The sealed lead acid chemistry balances cost-effectiveness with reliable output, making it a practical choice for mission-critical uses where downtime is not acceptable.

Certified by U.L. and CE, this unit meets recognized safety and quality benchmarks. Each battery ships brand new and factory fresh, with a one-year warranty included for added confidence. Whether you’re replacing a failed cell or stocking spare units for maintenance, this high-performance battery is ready to support your equipment.

Don't wait — purchase this Unicell TLA645 replacement battery today to secure a dependable, long-lasting battery that keeps your devices powered and protected.

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 : Unicell TLA645 Battery
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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