CP-BATT-8821-BTI - Battery Technology Replacement Battery for | Aztek Computers
29+Years
SKU: TL7SFZHPWX |  Mfg. Part: CP-BATT-8821-BTI  | UPC: 886734900829  | 
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CP-BATT-8821-BTI - Battery Technology Replacement Battery for Cisco IP Phone

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Condition: New

$78.47  $105.93
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Product Overview

BTI CP-BATT-8821-BTI 3.8V 2000MAH 7.6WH LI-ION PHONE BATTERY FOR CISCO IP PHONE

Expert Overview

The BATTERY TECHNOLOGY CP-BATT-8821-BTI is a replacement lithium-ion battery designed for specific Cisco IP Phone models. This component provides a direct power source for compatible devices, ensuring continued operation and mobility within a business environment. With a 3.8V output, 2000mAh capacity, and 7.6Wh, it serves as a critical spare or replacement part for organizations utilizing Cisco IP telephony infrastructure. This battery addresses common issues such as diminished talk time or complete power failure in aging phone units, restoring original performance levels. It is intended for IT departments and procurement managers seeking reliable, purpose-built components to maintain their communication systems without extensive downtime.

Product Details

  • Manufacturer:
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  • BATTERY TECHNOLOGY
  • CP-BATT-8821-BTI
  • 886734900829
  • New
  • 1 lbs
  • 5 X 5 X 5
  • Today - Aug 08, 2026
  • Dec 01, 2025
  • Yes
  • CN
Product Identifiers: Brand: Battery Technology • Part #: CP-BATT-8821-BTI • UPC: 886734900829 • Category: Telephone Batteries • TAA Compliant

Frequently Asked Questions

Which Cisco IP Phone models are compatible with this battery?

This replacement battery is designed for Cisco IP Phone models specified as '8821'. Buyers should verify their phone's model number against this specification to ensure compatibility.

What are the key electrical specifications of this battery?

The battery operates at 3.8V and has a capacity of 2000mAh. Its total energy rating is 7.6Wh, indicating its power storage capability.

What type of battery chemistry does this product use?

This replacement battery utilizes Lithium-Ion (Li-ion) chemistry. This is a common type for portable electronic devices due to its energy density.

Is this battery suitable as a primary power source or only as a backup?

This battery functions as a primary power source for compatible Cisco IP Phones, enabling portable operation. It can be used to replace an existing worn-out battery or as a spare to extend device usage.

CP-BATT-8821-BTI - Battery Technology Replacement Battery for Cisco IP Phone

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Reviews for Battery Technology CP-BATT-8821-BTI

$78.47