Roomba 400 4000 4905 4210 Discovery Battery

Replace your Roomba battery with a brand new replacement Roomba battery. This Roomba battery is rated 50 Wh, 3500 mAh and will typically last 1.5 -3.5 hours when fully charged. Be sure to clean the connection points between the battery and the charging dock. Any dirt, dust or debris can affect the ability for Roomba to charge properly.

This Roomba battery is compatible with the 400 4000 4905 4210 models. See below for the complete list of compatible power tool models and battery part numbers. This battery is not compatible with the Roomba 500, 600, 700, 800 or 900 series models. Here you can find the Roomba 500 model battery. Not sure of you model? Look at the original box your Roomba came in or look underneath the Roomba and find the model number or battery part number.

Our Roomba 400 series batteries use the highest quality NiMH cells that charge faster and last longer than cheaper, lower quality batteries. Lower quality batteries can wear out in as little as 6 months. Our batteries can last up to 2-3 years.