Antwoord op "Why won't my canon SD 750 camera turn on?"I have a third party universal charger. Its been a while since we have used our camera and could not get it to turn on even though the light was green on the charger. I realized that the charger allowed the battery to fit two ways so if I didn't put it in correctly the contacts on the battery were not touching the contacts on the charger. I flipped the battery over, charged, good to go. Hope this helps someone else.