Cisco CP-BATT-8821 Standard Battery — Reliable Power for Your 8821 Wireless IP Phone
Keep your Cisco 8821 Wireless IP Phone powered throughout the workday with this OEM-compatible standard battery. The CP-BATT-8821 delivers extended talk time and dependable standby performance for shift workers, office staff, and mobile teams in demanding enterprise environments.
Key Specifications
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Battery Chemistry: Rechargeable Lithium-Ion (Li-Ion)
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Voltage: 4.35V
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Capacity: 2060mAh (nominal)
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Talk Time: Up to 11.5–13 hours on a full charge
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Standby Time: Up to 240 hours
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Quick Charge: ~3 hours via power adapter or desktop charger
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Weight: 1.3 oz (37 g) — lightweight and compact
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Part Number: CP-BATT-8821 / CP-BATT-8821=
Why Buy from Reef Telecom?
- Industry-leading 10-year warranty on all equipment
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Free shipping on orders over $300
- Trusted B2B telecom equipment supplier
- Fast, reliable fulfillment
Compatibility
This battery is designed exclusively for the Cisco Wireless IP Phone 8821 (CP-8821-K9). It features tool-free installation — simply remove the back cover, swap the battery, and replace the cover. Ideal for healthcare facilities, warehouses, retail floors, and any environment where reliable wireless communication is essential.
