I tried the toothpick trick, and it seemed to work occasionally and then go back to the same old, "Change Battery" I did it for over a year and finally I broke off one of the contacts. I bought a parts camera on eBay for $10 and took the contacts out of it and put them in my own camera. At least the contacts do work but I still have to use the toothpick trick. It is really aggravating. Canon should make a better camera, shame on them.
Next time, I will not buy a Canon.