Surely you have been told on more than one occasion not to charge your mobile at night if you still have a battery left because it could damage it or that having your mobile charging for so many hours is bad. But right now you have some battery left on your smartphone, although not enough to get you through the day, and you want to know if it is bad to charge it while you are sleeping or you can do it without problems.
Taking into account that batteries have a limited charge cycle and that repair right now is more expensive, you will be afraid of doing things wrong. However, we are going to dismantle (or not) this myth and tell you what actually happens if you charge your mobile all night.
Is it dangerous to leave my mobile charging all night?
Currently, device manufacturers have worked hard to improve this aspect, so they have new functions to take care of their batteries and make charging safer. Therefore, if you use an official charger, or a quality compatible one and with all the necessary security measures, you will not have problems charging your mobile at any time of the day. Not because I’m charging all night. It is not going to explode, the battery is not going to be damaged or anything bad is going to happen.
Current smartphones, and for some time now, have a system that interrupts the input of electrical charge when the battery is fully charged to avoid the risk of overloads. Thus, if your battery reaches 100%, they will prevent current from reaching it.
This is not the case if you have a very old mobile because the previous nickel-cadmium batteries were damaged by charging for many hours. The memory effect also affected its lifespan. Today’s cell phone batteries no longer have any of these problems, so there’s nothing to worry about.
You can even take advantage of the fact that you are not going to be using it to turn it off at night. Thus, you will favor your night rest, it will charge faster and you will take advantage of your smartphone to rest and improve its performance when you turn it on again.
Is it the best decision or is it going to harm me in something?
Although nothing will happen to it if you do it from time to time, it is not recommended that you do it every night because there are many studies that ensure that it is best to maintain charge levels of 20 to 80% , something that is not comply by acquiring this habit. Batteries are not damaged by charging them fully or above 80%, however if you maintain the recommended charge levels they will last longer under the best conditions.
For this reason, as long as it does not become a habit, leaving your mobile charging all night, whether or not it has some battery life, will not cause damage or pose any risk to your mobile, the battery or your own physical integrity. It is also good to let it fully discharge on occasion to calibrate the battery.
In any case, the most advisable thing is still that in most cases you maintain adequate charge levels to increase its useful life and that it lasts longer with good autonomy.