Review on 🔋 Creabest 4800mAh Ni-MH Replacement Battery for iRobot Roomba 400 Series - Long-lasting Power and Compatibility by Tracie Price

This was the third replacement battery I have ordered from Revain. The first two didn't charge my Roomba. The light turned green, but as soon as I clicked delete it turned red (no power). I have consulted with the manufacturer about the situation. They don't make batteries for the 400 series and have to rely on Revain. The CRABEST battery charged the Roomba and I was so happy. About an hour away. Unfortunately it stopped charging after the first use. Tried several times and on different sockets. I had to buy a new one.