We all know the drill: plug in your iPhone at night, wake up to a fully charged battery, and go about your day. Simple, right? Well, not exactly. As it turns out, some of our most common charging habits—ones we don’t even think twice about—could actually be doing more harm than good. From overcharging to using the wrong cables, there are a few surprisingly common mistakes that might be shortening your battery’s lifespan without you even realizing it.
But here’s where things get complicated: one tech expert posted a video on TikTok in which he points out a charging mistake that most people don’t even realize is a mistake—and chances are, you’re doing it too.
@benobitech Did you know charging your phone with a case on is bad for your battery? #iPhoneBattery #iPhoneBatteryHealth #iPhoneBatteryTips #iPhoneChargingTips #iPhoneChargingHacks
Before you plug in tonight, here’s what you need to know about charging your iPhone with its case on — and whether it can truly compromise your iPhone’s battery health.
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Why You Shouldn’t Charge Your Phone With the Case On
Charging your iPhone with the case on is a common habit — because who really wants to fumble with removing a case every time they need to power up? But what many people don’t realize is that certain phone cases, especially thicker ones or those made from materials that trap heat, can contribute to your iPhone getting warmer than it should while charging. Heat is one of the biggest enemies of lithium-ion batteries, which are sensitive to temperature changes. When your phone overheats repeatedly during charging, it can accelerate battery aging and reduce overall battery health over time. This doesn’t mean every case is a problem, but if you notice your iPhone getting a lot warm while plugged in, it might be worth trying to charge without the case.
Why You Probably Shouldn’t Worry Too Much
Even with all that said, charging with your case on isn’t the worst charging mistake you can make. A far bigger issue that’s worth your attention is using off-brand or low-quality charging cables and power bricks that don’t meet Apple’s safety standards. These can deliver inconsistent power, cause overheating, or even damage your phone’s battery over time. Cheap or counterfeit cables often lack proper voltage regulation, which can stress your battery more than a warm case ever could. So while removing your case now and then is a good habit, the real priority should be using high-quality, MFi-certified accessories.
