Artisan Power Replacement Battery for Cisco 8821 & 8821-EX Wireless IP Phones

Keep your Cisco 8821 wireless fleet running all day with this high-capacity 2100 mAh Artisan Power replacement battery. A reliable, cost-effective alternative to the OEM CP-BATT-8821 — backed by Reef Telecom's industry-leading 10-year warranty.

Key Specifications

• Capacity: 2100 mAh (extended capacity vs. OEM)
• Voltage: 3.8V DC
• Chemistry: Lithium Ion (Tier-1 cells made in Japan)
• Certifications: UL Listed (UL 2054), UN 38.3 Certified
• Installation: Easy pull-tab design — installs in seconds
• Condition: Brand New

Why Choose This Battery?

• Extended 2100 mAh capacity delivers increased talk time, standby time, and reliability per charge compared to the original Cisco CP-BATT-8821
• 100% compatible with Cisco 8821 and 8821-EX phones and all existing Cisco 8821 chargers
• UL and UN safety certified for enterprise deployment confidence
• Premium Japanese-made Li-Ion cells for maximum run time and cycle life

Compatibility

Direct replacement for Cisco CP-BATT-8821 and 74-102376-01. Compatible with Cisco Wireless IP Phone 8821 (CP-8821-K9) and Cisco 8821-EX (CP-8821-EX-K9). Works with all standard Cisco 8821 desktop chargers, multi-chargers, and USB charging.

Free shipping on orders over $300. All refurbished and new products from Reef Telecom include our 10-year warranty for complete peace of mind.

Free ground shipping on orders over $300. Same-day shipping on orders placed before 4PM EST.

All products include our industry-leading 10 Year Warranty backed by Reef Telecom.