My Roomba was struggling to clean my entire home in one charge, but thanks to this replacement battery, I can now enjoy longer cleaning sessions without ANY interruptions. The 4500mAh capacity is a game-changer, especially for bigger homes like mine. I was able to install it easily thanks to my knowledge gained in practice with Roomba repairs .The only downside is that it comes at a slightly higher price point than some other replacement batteries. Overall, I'm satisfied with this product and would highly recommend it to any Roomba owner in need of an upgrade..