Is your battery rechargable or not. If not does it last a long time before having to replace it. I have a rechargable and the doctor is thinking about changing mine to the non rechargable. My battery stays so sore I can't charge it and so its not going to do me any good. I don't know if I want it changed to where it will only last a year or two or just move it and try another place. It is suppose to last up to 7 years. If I move it and it don't help I'll be back in the same perdicament. So im to the point I don't know if surgery to change it every year or so and not have to recharge it, or try to move it and hope for the best, but if not then more surgery. This is why I was wondering how long your battery has lasted or how much life is used of it if it is the non rechargable. Thanks for any imput!