| abstract |
A power supply for use with a tissue stimulating prosthesis, such as a cochlear implant. The power supply system comprises a first battery cell, a second battery cell, at least a third battery cell and a switch. The first and second battery cells are electrically connected in series to provide power to components of the prosthesis, while the third battery cell is configured to be selectively electrically connected in parallel with either the first or second battery cells. |