Introducing the Honeywell spare battery, a high-performance 4500 mAh power source designed to fit perfectly with EDA52, EDA56, and EDA57 devices. This lightweight spare battery weighs just 0.08kg, making it easy to carry as a backup power solution. Manufactured by Honeywell, this original part number 50172021-001 is a reliable and long-lasting battery that ensures your devices stay powered on the go. Get the peace of mind knowing you have a spare battery ready whenever you need it.