It’s the age-old charging question that pits total convenience against risk: should you hook up your iPhone to a charger and leave it charging all night long while you snooze so that you can wake to a phone that is roaring and ready to go?
The allure is obvious: overnight charging requires no thinking or monitoring of battery percentages. The likelihood that you’ll wake to find it at 100 percent is pretty much 100 percent, which means you have a near guarantee that your device will serve you for hours longer than it normally would. But hold that thought: you’ve probably also heard that it isn’t good for your battery to charge for hours on end and that reaching a 100 percent charge isn’t necessarily a positive thing. So, what’s the real story behind overnight charging — should you do it or not? Here’s the final answer, once and for all.
Yes, You Can Charge Your iPhone Overnight
If you are a frequent overnight charger, don’t worry: you’ve come this far without damaging your battery for a reason. Your phone’s lithium-ion battery will not keep drawing on power once it’s charged to 100 percent. It will simply stop charging. This means you can leave it charging for hours on end and it has the “intelligence” to quit once it has been sufficiently charged.
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But: Charging It Overnight May Not Be The Best Practice
Even though charging your phone overnight may not ruin your battery, tech experts are still split on whether it’s the best charging practice. For one thing, extreme temperatures are still a big-time battery destroyer and if you are charging your phone with a case on or on the pillow (or under it) its temperature could soar and that can affect your battery.
Additionally, the charging sweet spot for an iPhone continues to be between 30 and 80 percent and allowing your phone’s battery to drop below that or continually reach 100 percent isn’t the best thing for its longevity. One more tip: if you are going to charge your device overnight, remove the cover first. Your phone cover adds to your device’s temperature and can affect your battery.
