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No, not necessarily, but it can cause a minor issue. iPhones use a Lithium-Ion battery for its power, using while it's charging won't necessarily ruin the battery, but if you're using the phone while the battery is in the charging process, it can cause the phone to think it has more power than it actually has.
That means a 1,810mAh battery loses about 181mAh of charge over an hour of typical use. At that rate, eventually your phoneâs battery will run down and youâll want to recharge it. So you pick up the phone and plug it into a random charger. At this moment, many people make a big mistake, says Duffy. âFor every smartphone on the market, there are three main charging standards,â he says.