Patent ID: 8405353

Claim:
A controller for a bath lift which controller can be hand held by a user of the bath lift, the controller including one or more rechargeable electric cells, connection means permitting the controller to be selectively connected to a bath lift to control same, or to a recharging unit to recharge the electric cell or cells, the controller also including operating controls selectively operable to cause the bath lift to raise or lower a person, the bath lift being powered by the electric cell or cells in the controller, the controller also including first and second control protection means configured to monitor the voltage of the electric cells such that when it is detected by the second control protection means that the voltage has fallen below an upper predetermined level the second control protection means prevents the bath lift from being lowered but allows the bath lift to operate such that a person in a bath can be lifted out of the bath, and when it is detected by the first control protection means that the voltage has fallen below a lower predetermined level the first control protection means prevents the bath lift from being used at all, whereby to prevent the electric cells from being discharged so much that they cannot thereafter be fully recharged.