---
product_id: 64969849
title: "Extended Battery"
brand: "artisan power"
price: "VT20451"
currency: VUV
in_stock: null
reviews_count: 1
category: "Artisan Power"
url: https://www.desertcart.vu/products/64969849-extended-battery
store_origin: VU
region: Vanuatu
---

# UL & UN certified safety 2100 mAh high capacity 3-second easy install Extended Battery

**Brand:** artisan power
**Price:** VT20451
**Availability:** ❌ Out of Stock

## Summary

> 🔋 Power up your Cisco phone with confidence and speed!

## Quick Answers

- **What is this?** Extended Battery by artisan power
- **How much does it cost?** VT20451 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/64969849-extended-battery)

## Best For

- artisan power enthusiasts

## Why This Product

- Trusted artisan power brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Swap & Go:** Innovative pull-tab design lets you replace your battery in just 3 seconds—no hassle, no downtime.
- • **Power Through Your Day:** Extended 2100 mAh capacity delivers longer talk and standby times than OEM batteries.
- • **Seamless Compatibility:** Perfectly fits Cisco 8821 and 8821-EX phones, working flawlessly with existing chargers.
- • **Certified Safety You Can Trust:** UL2054 and UN 38.3 certifications ensure reliable, fire-safe performance.
- • **Smart Savings, Premium Quality:** Save big by upgrading your battery without buying a new phone—artisan craftsmanship meets value.

## Overview

The Artisan Power Replacement Battery for Cisco 8821 and 8821-EX phones offers a robust 2100 mAh lithium-ion cell made in Japan, certified for UL2054 and UN 38.3 safety standards. Designed for quick, tool-free installation with an easy pull-tab, it extends your phone’s talk and standby time beyond OEM standards while ensuring full compatibility with existing chargers. Ideal for professionals seeking reliable, high-performance battery replacements without the cost of new devices.

## Description

Buy Artisan Power - Replacement Battery for Cisco 8821 and 8821-EX Phones - Replaces CP-BATT-8821-2100 mAh Replacement Phone Battery for Cisco 8821 Unified Color Wireless VOIP Phone on desertcart.com ✓ FREE SHIPPING on qualified orders

Review: Upgrade Phone Battery - Great Phone Battery Replacement. Likes: 1. Fits into Phone Battery location that the original Phone battery goes in. 2. Well packaged. 3. This battery is new so your phone's possible original battery "Battery Not Staying Charged As Long As It Used To Problem" is now a thing of the past. Dislikes: 1. Generally with ALL NEW BATTERIES, There is the tedious process of having to recharge and discharge and repeat to Get the new battery used to the new factor of resistance being the phone that it has been introduced to. Make sure to follow the simple instructions. Helpful

## Features

- BETTER PERFORMANCE - Replace dead or dying Cisco 8821 and 8821-EX phone batteries with our extended capacity 2100 mAh battery pack for increased phone talk time, standby time and reliability per charge compared to OEM Cisco CP-BATT-8821 and 74-102376-01.
- HIGH CAPACITY LITHIUM ION - This battery pack is UL listed UL2054 and UN 38.3 Certified. DC 3.8 Volt battery, 7.98 and 2100 mAh. Our Lithium Ion Battery cells are made in Japan. This battery replacement works with your existing compatible Cisco 8821 chargers
- EASY PULL TAB INSTALL - Your new battery replacement includes an easy to use pull tab to make battery replacement easy and fast. Simply insert the bottom end into your phone's empty battery slot, push the top into place and then pull the tab to connect the battery. Install takes just 3 seconds.
- SAFETY CERTIFICATION - Make sure your aftermarket phone battery is properly certified for phone battery safety specifications overheating and fire hazard. Our Battery is UL Listed, certified for UL 2054 and for UN 38.3.
- PREMIUM BATTERY SOLUTION - Artisan Power offers a variety of high quality aftermarket battery replacements for all the top electronics from phones to clippers to printers and more. Save big by replacing old batteries without having to purchase new equipment.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07612T1CT |
| Antenna Location | Phone |
| Battery Capacity | 2000 Milliampere Hour (mAh) |
| Battery Cell Composition | Lithium Ion |
| Battery Cell Type | Lithium Ion |
| Best Sellers Rank | #235 in Cordless Telephone Batteries |
| Brand | Artisan Power |
| Compatible Phone Models | Cisco 8821 |
| Customer Reviews | 4.4 out of 5 stars 22 Reviews |
| Item Weight | 0.04 Kilograms |
| Manufacturer | Artisan Power |
| Model Number | 8821, 8821-EX |
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
| Recommended Uses For Product | Phone |
| Reusability | Rechargeable |
| UPC | 819595013162 |
| Unit Count | 1.0 Count |
| Voltage | 3.8 Volts |
| Warranty Description | 1 Year |

## Product Details

- **Battery Capacity:** 2000 Milliampere Hour (mAh)
- **Battery Cell Composition:** Lithium Ion
- **Brand:** Artisan Power
- **Number of Batteries:** 1 Lithium Ion batteries required. (included)
- **Recommended Uses For Product:** Phone

## Images

![Extended Battery - Image 1](https://m.media-amazon.com/images/I/517Fzsn5eqL.jpg)
![Extended Battery - Image 2](https://m.media-amazon.com/images/I/51o40x7fXjL.jpg)
![Extended Battery - Image 3](https://m.media-amazon.com/images/I/71KIN-g0HFL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ Upgrade Phone Battery
*by T***D on December 14, 2022*

Great Phone Battery Replacement. Likes: 1. Fits into Phone Battery location that the original Phone battery goes in. 2. Well packaged. 3. This battery is new so your phone's possible original battery "Battery Not Staying Charged As Long As It Used To Problem" is now a thing of the past. Dislikes: 1. Generally with ALL NEW BATTERIES, There is the tedious process of having to recharge and discharge and repeat to Get the new battery used to the new factor of resistance being the phone that it has been introduced to. Make sure to follow the simple instructions. Helpful

## Frequently Bought Together

- Artisan Power - Replacement Battery for Cisco 8821 and 8821-EX Phones - Replaces CP-BATT-8821-2100 mAh Replacement Phone Battery for Cisco 8821 Unified Color Wireless VOIP Phone
- Cisco Wireless IP Phone 8821 Desktop Charger with OEM Power Supply (Renewed)
- Cisco Unified Wireless IP Phone 8821 - Cordless Extension Handset - Bluetooth Interface - 2.4" Black CP-8821-K9 (Renewed)

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**Shop now:** [https://www.desertcart.vu/products/64969849-extended-battery](https://www.desertcart.vu/products/64969849-extended-battery)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-01-26*