Review on 🔋 High-capacity Replacement Battery for iRobot Roomba R3 500-900 Series - 4.5Ah 14.4V by Carolyn Lawson

I have two iRobot Roomba vacuums. Every evening when everyone goes upstairs, I send them both into the living room. I go back upstairs and watch TV, regularly checking to see if they're tucked under my closets. One of the Roombas didn't last as long as the other and didn't perform as it should, so I bought this battery. Firstly, it's very easy to change the battery, a few screws and that's it. After replacing the battery, Roomba worked as intended again. I was happy but every night when I went downstairs to check it always turned off in front of each other. I don't claim to know everything about batteries, maybe I bought one that doesn't last as long as the other or the one I bought is of lower quality. I gave 4 stars because I'm not sure if it's the battery or me.