4-Bay Charger for Vocera B3000 Battery Packs. Includes USB Type C power supply. Charges both Standard and Extended Batteries in 3 hours or less! Features durable Gold Pins to ensure a more consistent and long-term connection with the battery pack for each charge, and LED lights to indicate each batterys charging status. Compatible Battery Models: 230-01977, 230-01980, 230-02020, 230-02021