Honeywell H4420-LI Replacement battery for Falcon 4420 Series Scanner Type: Battery Specification: Chemistry: Lithium lon Voltage: 3.7 volts (nominal) Capacity: 2400 mAh Width: 1.73 inches (43.95 mm) Length: 2.13 inches (54.24 mm) Height: 0.74 inches (15.81 mm) Weight: 58.4 g Compatibility: For Falcon 4420 Series Scanner Feature: Contains the highest quality battery cells. Provides excellent discharge characteristics. Provides longer cycle life. Extends operating time and reduces the total number of batteries needed. Rigorous testing including temperature,vibration, shock, drop, short circuit, and overcharge.