Giving it 2 starts only because it fit my vacuum and turns on. However, it only gives my Lefant M210 a 30 minute run time (original battery was 90+), which is not even enough time for it to get back to it's dock, so I am hunting around the apartment each morning to re-dock it myself. I live in a 1-bedroom apartment, and close off the bedroom and bathroom at night when this runs, and it doesn't even have enough power to cover the entry hallways, living/dining room and small kitchen. A waste of money.