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

The only complaint I have is that the battery doesn't charge. The error kept popping up on my Roomba when trying to charge. I can charge the original battery without any problems. It just doesn't last long on a charge. 6 years. The sticker on the battery said it was for the 500 series and the one I ordered was for the 650 series. I called Revain and they assured me it would work with the 650 series. I called IRobot and they really couldn't help was a normal battery. All other spare parts fit.