My 14 month old baby was chewing on the phone charger and giggling. I suspected he might be tickled by the electric current. But he seems fine and has no burn signs. But I'm still worried about internal organ or brain damages. What is the voltage released from a phone charger? Is it strong enough to cause any organ or brain damages to a baby? Sorry, I know this should be a question to a doctor. But I'm in the country now and have no doctors nearby. Thanks!