Make sure to dig into the data about your iPhone’s battery to determine if the replacement is even warranted. ClickAway’s free diagnosis is a good start. Rest assured, if you hang onto your iPhone long enough, a battery replacement will be warranted eventually. New batteries cost from $49 for older iPhones or $69 the X, XS, XS Max, and XR, if you go through Apple. Plus you may go without your iPhone for days if you don’t live near an Apple Store. You could go to a third-party repair shop like ClickAway. We recommend you choose a reputable service center that guarantees their parts.