Manufacturer’s Description

Cisco 7921G Extended Battery (SB-7921-L19) New: --> Cisco 7921G Extended Battery Features Extended length battery for Cisco 7921G Wireless IP phone Li-ion 3.7v 1900 mAh Talk time - up to 15.5 hours Standby time - Up to 200 hours High quality replacement battery - 100% compatible with OEM part number 74-4957-01 or CP-BATT-7921G-EXT= battery Compatibility Compatible with Cisco 7921G wireless handset

The Specs

Quick Glance

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