The Cisco 8821 Extended Battery is a high-performance rechargeable lithium battery, specially designed for the Cisco 8821 Wireless IP Phone. This advanced battery ensures that the communication device remains charged throughout the day with excellent talk and standby times.

• Battery Type: Rechargeable Lithium
• Voltage: 3.7V (standard) or 4.35V (enhanced models)
• Capacity: 1470 mAh (standard) or up to 2060 mAh (enhanced versions)
• Talk Time: Up to 13 hours for standard models
• Standby Time: 240 hours for standard models
• Charging Time: Approximately 3 hours
• Dimensions: 55.7 x 35.9 x 5.7 mm
• Color: Black

This battery also features an extended capacity option and is compatible with Cisco 8821 and 8821-EX phones. Additionally, it meets strict safety standards, ensuring user protection.

The extended version offers greater reliability and longer usage on a single charge, making it an ideal choice for professionals who require continuous communication during the workday.