If you are wondering how fast a stairlift can go, or are worried about its speed, you can put your mind at rest. Stairlifts are designed to move relatively slowly, with a speed of 10-15cm per second. This is to ensure a safe ride for the occupant as more often than not, they are elderly or have mobility issues which will make a fall quite hazardous! If you feel that your stairlift is going slower than usual, check whether the batteries are fully charged. If they are, it may be a sign that it's time to get new batteries!