Judy, what I have read is that you have 4 batteries, 2 of them are new and all four show the same level of charge when placed in the camera and that charge level is less than full. That tells me you either have a bad charger or there is something wrong with the camera. Look at the battery contacts inside the camera, clean them with a q-tip and alcohol.
If that does not help then replace the charger with Canon if possible and purchase it from a store that will accept a return in case the charger does not solve your problem.
Forget about repairing the camera, it would cost twice as much as the camera is worth. If you want to stick to the same model then buy a used working one also from someone or someplace that accepts returns.
