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Is it wrong to keep the phone plugged in to charge?

# **Is it wrong to keep your phone plugged in to charge?** **Phones have many safety features to prevent the battery from overheating and burning. However, batteries degrade over time and that can jeopardize safety.** One of the most frequently asked questions about phone charging is whether it’s harmful to leave it plugged in overnight. or not? What happens if I keep charging my phone after reaching 100%? Those are reasonable concerns given that phone batteries haven’t improved much over the years. To solve these questions, the following content will analyze more deeply. ## **How ​​does portable charging work?** First let’s talk a little bit about what actually happens when charging the phone. Batteries convert chemical energy into electricity. The chemicals inside the battery contain electrons, and when they move, they generate electricity. When the battery is connected to a power source, the electrons inside begin to move from the negative electrode to the positive electrode. The chemical potential increases, leading to an excess of electrons that help the battery charging process take place. When the battery is not connected to a power source, electrons will move in the opposite direction from the anode to the cathode. This energy is converted into electrical power for the device, thereby discharging the battery. ## **How ​​the phone protects itself while charging** Repeating the above cycle over and over again causes battery quality deterioration. That’s why users may have heard that keeping the phone charged between 20-80% is good for the battery, while going from 0-100% is a long cycle which is not good for the battery. The phone actually has built-in protection so users don’t need to worry about this. For example, when charging the phone to 100%, the phone will stop charging but the phone will start charging again when it drops to 99%. It’s a short charge cycle, but it can repeat hundreds of times while the phone is plugged in. To combat this, iPhones and many Android devices feature “adaptive” or “optimized” charging. Instead of letting the battery fully charge and cycle continuously between 99-100%, it will keep the battery at around 80% and intelligently end the last 20% when the user normally pulls out the phone. ## **Should I plug in my phone charger all the time?** Back to the main question of the article, can users plug in the phone to charge it continuously? The short answer is “Probably”. There is no question that the battery is the most flammable component in a samrtphone, this has been most evident on the Galaxy Note7. The disaster with Samsung’s phone stemmed from a design flaw in the battery that led to overheating and fire. However, hundreds of millions of smartphones have been manufactured in the past few decades, and exploding batteries are extremely rare. Adaptive and optimized battery charging are just a few of the battery protection features available to consumers. There are many other safety measures as well as comprehensive safety checks before the device leaves the factory. Keeping your phone plugged in will reduce battery health, making it shorter and shorter on a single charge, just like keeping a laptop plugged in at all times. Users can see this by checking in the battery health section on Android and iPhone. In theory, the concept of plugging in your phone “all the time” is very open-ended. The more degraded the battery, the higher the chance of something bad happening. If you need to plug in the charger for a long time, make sure you’re using the correct charging device.



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