Jane and Hans, Unfortunately Jane is correct. It does cost $12000-it was explained to me this way. Since the lithium batteries run down at different rates depending on the settings of the stimulator and the stimulator needs to be sealed to prevent serious infections from developing the whole stimulator must be replaced. This can be from 11 months to 4 years depending on the settings. Jane hang in there. You have been an inspiration to me and others. NOw it is time to help you Who is your insurance company. I think a barrage of letters can't hurt and letters from your neurologist also would be helpful. Letters to medtronics outlining the situation may provide a source of funding also. LEt'um have it with both barrels over a broad range of sources. One is bound to give in. Charlie -- ****************************************************************************************** Charles T. Meyer, M.D. Middleton (Madison), Wisconsin [log in to unmask] ******************************************************************************************