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SigmasTek  |  SKU: BW-15408

CSB HR1221W Compatible Replacement Battery 3.5 lb

25% off
Sale price $29.99 USD Regular price $39.99
Shipping calculated at checkout.
Meets or exceeds OEM SLA battery specifications
Absorbent Glass Mat (AGM) technology for enhanced performance
Maintenance-free and spill-proof design for safety and convenience
U.L. Recognized and CE Certified for quality assurance
Includes 1-year warranty and guaranteed 100% compatibility
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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

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


Volts & Amps

12 Volts | 5.5 Ah

Terminal Type

F2

CSB Battery HR1221W Replacement — Compatible with CSB HR1221W

This replacement battery for the CSB Battery HR1221W delivers reliable compatibility, consistent performance, and proven durability for your SLA-powered equipment. Designed to meet or exceed OEM specifications, this high-performance battery is an ideal solution when you need a dependable, maintenance-free power source. Whether you are restoring backup capacity to a UPS, maintaining emergency lighting, or replacing batteries in security systems and portable devices, this long-lasting battery offers the dependable runtime and safety certifications you expect.

Key Specifications

  • Model: CSB Battery HR1221W
  • Replacement Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 5.5 Ah
  • Terminal Type: F2
  • 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

  • Durable construction: The AGM design and spill-proof housing increase resistance to vibration and reduce the risk of leaks, making this replacement battery a rugged option for demanding environments.
  • Long life and dependable standby performance: Engineered to provide consistent output over repeated charge/discharge cycles, this long-lasting battery supports extended service life in standby and cyclic applications.
  • High-performance battery characteristics: With stable voltage delivery and low self-discharge, this high-performance battery maintains readiness for UPS systems, emergency lighting, alarm systems, and telecom equipment.
  • Maintenance-free convenience: The sealed AGM chemistry eliminates the need for water top-offs or periodic maintenance, simplifying installation and long-term ownership for both home and commercial users.
  • Safety and compliance: U.L. Recognition and CE Certification ensure safe operation and compatibility with certified equipment and installations.
  • Versatile applications: Ideal for uninterruptible power supplies (UPS), emergency power backup, medical devices, security systems, mobility aids, and portable tools that require a reliable 12 Volt, 5.5 Ah SLA battery with F2 terminals.

Ready to replace your aging CSB HR1221W? Choose this factory-fresh, SigmasTek replacement battery to restore reliable power and confidence to your equipment. Click to purchase this replacement battery now and enjoy dependable performance backed by a 1 Year Warranty.

Technical Specifications

Voltage12 Volts
Amp Hours5.5 Ah
Terminal TypeF2
Length (in.)3.54
Width (in.)2.76
Height (in.)3.98
Weight (lb.)3.5

Product Highlights

  • Brand Replacement : CSB Battery HR1221W
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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