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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.
1 You also need to consider how often you have been using your phone. 2  If you have used it a lot lately, the increased need for a good charge is probably just due to the fact that you have used more of its power.3  This is only applicable if you barely touch your phone or have not used it any more than normal.ote how frequently you need to charge your phone. If the battery life of your phone suddenly drops without reason, prompting you to charge it twice as often, the battery might be dying because of tap software constantly running in the background and eating up power.