• Cisco 8821 Battery (CP-BATT-8821=) (New/Generic) CISCO
  • Cisco 8821 Battery (CP-BATT-8821=) (New/Generic) CISCO
  • Cisco 8821 Battery (CP-BATT-8821=) (New/Generic) CISCO
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Cisco 8821 Battery (CP-BATT-8821=) (New/Generic)

Cisco 8821 Battery (CP-BATT-8821=) (New/Generic)

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DESCRIPTION

The  (CP-BATT-8821) is a replacement battery designed for the Cisco 8821 wireless IP phone. This unit provides reliable power to keep your device running efficiently throughout the workday.

Key Features of the Cisco 8821 Battery

  • Replacement battery for Cisco 8821 wireless IP phone
  • Reliable and consistent power performance
  • Designed for enterprise communication devices
  • Easy to install and replace
  • New battery for long-term usage

Why Choose  Replacement ?

Over time, batteries lose capacity and performance. This replacement battery restores your device’s mobility and ensures uninterrupted communication.

It is ideal for businesses that rely on wireless communication in offices, hospitals, warehouses, and large facilities.

Common Use Cases

  • Replacing worn-out or failing batteries
  • Maintaining wireless communication systems
  • Enterprise mobility environments
  • IT and telecom maintenance

Compatibility

This battery is specifically designed for the Cisco 8821 wireless IP phone.

What’s Included

  • Cisco 8821 replacement  (new)

Frequently Asked Questions

Is this compatible with other Cisco phones?
No, it is designed specifically for the Cisco 8821.

Is this a phone?
No, this is a replacement battery.

When should I replace my battery?
When you notice reduced battery life or charging issues.

Is it easy to install?
Yes, it can be easily replaced in the device.

Looking for the full phone? Check out the Cisco 8821 wireless IP phone bundle.

PRODUCT DETAILS

Features

  • 13 hours of voice calling; up to 240 hours standby
  • Rechargeable Lithium ion 4.35V, 2060mAh smart battery
  • Note: Actual battery life varies significantly based on environmental factors, scan mode, and Bluetooth use.
  • Battery Type: Rechargeable lithium-ion, 4.35 V (nominal 3.8 V)
  • Capacity: 2060 mAh (minimum 2000 mAh) — ensures ample battery reserve for extended shifts.
  • Performance: Up to 13 hours of talk time and up to 240 hours (≈ 10 days) standby time when fully charged.
  • Compatibility: Specifically built for Cisco Wireless IP Phone 8821 — simple plug-and-play swap.
  • Use Cases: Ideal as a replacement for worn-out battery, spare battery for shift-based work, or as a backup to ensure uninterrupted VoIP communication.

Ideal For

  • Business offices, warehouses, medical premises, retail stores
  • Users needing multi-shift cordless IP phone coverage
  • Situations where constant mobility and reliable battery life are essential for communications

Compatibility

  • Compatible with Cisco 8821 Wireless IP Phone.

Part Number:

  • CP-BATT-8821=

DETAILS INFO

SKU:CISC-8821-BATT-GEN-CPBATT
Part Number:CP-BATT-8821=
Vendor: CISCO
Type: Telephone Accessories
Tags: 2025, Battery, Done SEO
Collections: CISCO, New, Wireless Phones
  • Shipping Available
  • Free returns
  • More delivery info
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Frequently Asked Questions

Find answers to common questions about refurbished telecom equipment, VoIP phones, and business phone systems in Canada

Trust, shipping and buying from Telecom Depot Direct

Yes on both counts. As a Canadian-owned and operated company, we ship domestically — no cross-border customs delays, no surprise brokerage fees, and no currency conversion uncertainty. Orders are priced in Canadian dollars and most ship within 1–2 business days from our Montreal location.

Legacy Systems (Nortel, Mitel, Avaya)

Yes. Nortel phones remain compatible with active Norstar and Meridian PBX systems — the system itself still works, you just need the handsets.
Not necessarily. End-of-support means updates stop, not that phones stop working. Many businesses extend system life by sourcing replacement phones.
We stock certified refurbished Avaya models that are tested and ready to deploy. Your system will recognize them immediately.

Compatibility & Systems

Compatibility depends on matching the phone protocol to your PBX system. Contact us and we will confirm before you order.
Yes for VoIP systems. No for proprietary systems like Norstar or older Avaya.

Refurbished Equipment

Yes. Refurbished means inspected, tested, cleaned, and reset. It is reliable and cost-effective.
Refurbished is tested and certified. Used is not inspected. New has never been deployed.

Conference Phones

Replacing with a refurbished unit is usually faster and more cost-effective.
It depends on room size. Small rooms need basic units, larger rooms require extended range or additional microphones.

Headsets

Bluetooth is for mobility. DECT offers longer range and better performance for office use.
Most headsets are compatible, but some require additional accessories.

Industry Solutions

Yes. We supply hospitality phones designed for high-use environments.
We recommend easy-to-clean and durable phones for clinical environments.
Yes. We carry heavy-duty phones designed for harsh environments.

Warranty, Returns & Support

It covers defects under normal use. We repair or replace faulty units.
Yes. Our team will guide you even if you are not technical.
Yes, but we recommend confirming compatibility before purchase.

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Why Choose Telecom Depot Direct?

🚚
Fast Canadian Shipping
1–2 business days, no customs fees
✓
12-Month Warranty
All refurbished equipment covered
💬
Expert Support
Contact us to confirm compatibility