Introducing the Honeywell Spare Battery, a Li-Ion battery designed to fit the 8670, 8650, and 1602g models. Weighing only 0.02kg, this original Honeywell product (part number 50129434-001FRE) is a reliable and long-lasting power source for your devices. Ensure uninterrupted use of your Honeywell devices with this high-quality spare battery from the trusted manufacturer, Honeywell.