Cisco CP-BATT-8821 Standard Replacement Battery — 3rd Party, New
Keep your Cisco 8821 Wireless IP Phone powered throughout the workday with this high-quality 3rd party replacement battery. Designed as a direct drop-in replacement for the OEM CP-BATT-8821, this lithium-ion battery delivers reliable performance at a fraction of the cost — backed by Reef Telecom's industry-leading 10-year warranty.
Key Specifications
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Part Number: CP-BATT-8821 (3rd Party Compatible)
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Battery Chemistry: Rechargeable Lithium-Ion
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Voltage: 4.35V (nominal) / 3.8V (minimum)
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Capacity: 2060mAh
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Talk Time: Up to 13 hours
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Standby Time: Up to 240 hours
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Charge Time: ~3 hours via power adapter or desktop charger
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Weight: 1.3 oz (37g)
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Condition: New (3rd Party)
Compatibility
- Cisco Wireless IP Phone 8821 (CP-8821-K9)
- Cisco Wireless IP Phone 8821-EX (CP-8821-EX-K9)
Why Buy from Reef Telecom?
- 10-Year Warranty on all products
- Free Shipping on orders over $300
- Trusted B2B telecom equipment supplier
This battery is ideal for enterprise environments including healthcare, manufacturing, retail, and warehousing where reliable wireless communication is critical. A cost-effective alternative to OEM, delivering the same performance and compatibility you need to keep your Cisco 8821 fleet running.
