Minivator Simplicity 950 Straight Stairlift The stairlift was bought in August 2010 and has only been used once. My grandmother was subsequently moved to live in the ground floor of her home only and as such the stairlift wasn't needed. If your relative has a straight staircase; no bends, curves or landings, then you need a straight stairlift such as the Minivator Simplicity 950. The Simplicity stairlift is a great option if you’re looking for a value-for-money no-frills stairlift. This lift is battery operated, however it charges from the mains and has been plugged in while it has been in situ. The slimline design of this Minivator straight stairlift allows it to be folded up when not in use to maximize space on the stairs for other members of the family. The slim track itself is fixed to the stairs close to the edge of the staircase, again for maximum clear space.