Review on 🔋 efluky 3500mAh Ni-MH Replacement Roomba Battery + Accessory Kit for Roomba 600 Series - Set of 11 Parts by Amy Johnson

I'm really impressed with the battery life. I left my Roomba unplugged from the charging station overnight and the next day when I plugged it in to clean it was still fully charged! The native battery is typically fully drained in 8 hours (I have two Roombas). The only downside I found with this pack is that the rotating side brush in the yellow center doesn't fit! The original is made with the screw countersunk in the yellow plastic, while this replacement sits almost flush with its exterior. It doesn't work because the screw isn't long enough to attach it to the vacuum cleaner. My husband is nimble and was able to drill through the yellow plastic just enough to make the screw thread well. The rest of the brushes, cleaning accessories and filters are in perfect condition and my car runs better than with original parts. Just note that the small rotating side brush will not fit and if you need it to work you will need to modify it.