including a dual motor that splits duty between the lift mechanism and the recline mechanism. This means less wear and tear on the motorized parts for a longer-lasting chair.

But you would need to be mobile enough to move from one lift to the other. If you're registered disabled ... to remove the stairlift, then replace parts including lithium batteries, and these costs ...

These figures come from paper “Physics-informed multi-source data fusion for inferencing residual stress field of rotary parts” by Haonan Guo, Yingguang Li*, Changqing Liua Dong He and Kai Tang. If ...