Think you know everything about that tiny supercomputer in your hand? You probably avoid plugging it all night so that your battery’s safe! But what if I told you that and many more assumptions about your smartphone and its battery are simply myths that traveled far and wide through seas of the internet? Today, let me clear up some of your misconceptions regarding smartphone batteries and common myths that people still believe.
Myths about the smartphone battery
Charging your phone overnight ruins the battery
You’ve probably heard this one: “Charging your phone overnight will ruin the battery.” So when your battery suddenly dies late at night, instead of leaving the phone on charge you just prefer keeping the phone dead till morning, right? Because you think charging your phone overnight will ruin the battery. What if I tell you, this is completely wrong information? Yes, it’s absolutely fine to leave your phone plugged in overnight.
Modern smartphones are equipped with smart charging technology that prevents overcharging. Once the battery reaches 100%, the phone automatically stops drawing power from the charger.
Instead, it enters a trickle charging mode. This is the situation in which a fully charged battery is charged very slowly just enough to replace the small amount of energy it naturally loses over time and to keep it at its fully charged level. This smart charging technology isn’t just limited to phones. Tablets, laptops, and even other devices use the same principle to keep your battery safe. So, you can stop worrying about leaving your phone on charge overnight
Using a phone while charging damages the battery
How many times have you used your phone while it’s charging and worrying in the back of your head that you’re damaging the battery or slowing down the phone? Well, you don’t have to think about that anymore because this is yet another myth.
In the past, it was true that phones could overheat quickly while charging, especially due to older lithium-ion batteries. These batteries weren’t as efficient at managing heat. But things have changed now. Modern smartphones are equipped with much more efficient batteries and advanced cooling systems to prevent overheating during use.
Not just the phone, with time we can see a lot of improvement in chargers too. They come with built-in power management systems that control things like voltage and temperature. On top of that, newer phones use smarter charging algorithms, which adjust the charging process based on real-time conditions. For example, many phones feature a function called adaptive charging, which slows down the charging speed once the battery reaches maximum capacity, reducing the risk of overheating. That means your battery is completely fine!
As a result, using your phone while it’s charging doesn’t have the same negative impact it once did. The risk of overheating has been significantly reduced thanks to these advancements in battery technology, power management, and charging algorithms.
Now, I should note, that if your phone gets really hot, it’s still a good idea to stop using it for intensive tasks. Excessive heat is never good for a battery. It can lead to problems over time, but moderate use while charging is perfectly fine.
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Turning off background apps saves battery life
We’ve all been told that turning off background apps will save battery, right? The reality is, that’s yet another folk tale about smartphone batteries you’ve been believing all this time. Let me explain the truth.
The apps you see running in the background are not really “running”. Instead, they are “suspended”. Moreover, they only use a tiny bit of power to stay ready for when you switch back to them. Matter of fact, if you force-close an app, you’re actually using more energy the next time you open it than to restart it from the “multitasking” screen causing battery loss.
Here’s why: When you close an app and open it again, your phone has to reload it from scratch. This requires more processing power and energy. In contrast, if you leave the app in the background, it’s in a low-power state and doesn’t consume much battery at all.
Conclusion on battery myth
While smartphone batteries are better than ever at handling the things we do to them, it’s still important to separate fact from fiction. The idea that charging overnight ruins the battery, using your phone while charging damages it, or turning off background apps saves battery life—all of these are myths. Modern phones are designed to handle these situations intelligently, so you don’t need to constantly worry about the little things. And next time someone tells you to stop charging your phone overnight or close all your background apps, you’ll know exactly why that’s just not necessary anymore!
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