Note:Note performance. The above article is a high-quality battery for your IROBOT ROOMBA 620 and is ideal as a replacement battery for your existing or defective IROBOT ROOMBA 620 battery. It can also be used as an additional spare battery for travelling, and can be handled and charged as usual using the standard power supply/charger, with a high level of safety provided by the electronic protection against overcharging and short circuits. The use of high-quality cells means that a higher number of charge-discharge cycles can be achieved. This means a longer service life for your new IROBOT ROOMBA 620 battery. Quality is our top priority. This means that all batteries are new and unused. Our own quality assurance guarantees a high standard of quality Note: If we do not expressly state that this is an original product, we supply a compatible product. This means that it is not an original product from the manufacturer and is therefore not manufactured or recommended by the manufacturer. All brand and product names belong to their respective owners and are used only to describe compatibility.