How can we help you? How is the stair lift powered? 1 out of 2 found this helpful Our stair lifts are powered by 24V DC batteries which are always charging at the top or bottom landing. Was this helpful? Yes (1) No (0) Category: General Related Questions Will my insurance cover the cost of a stair lift? Can I stand on the footrest instead of sitting on the seat? How long do the batteries last? Are stair lifts expensive?