WHY SHOULDN’T THE MOBILE PHONE BE RECHARGED AT NIGHT IN 2022?, Most of you are used to charging the laptop at night. Science has revealed that a simple charger left in a sector (socket) consumes energy. In addition, we often hear that leaving your laptop plugged in after it has reached 100% charge damages the battery. What is it about ? And what is recommended?
Fully charging a smartphone often takes two hours or a little more. But it is clear that we leave our laptops on the mains throughout the night, around 7 or 8 hours.
For the common opinion, the longer the laptop lasts the better it will be resistant. Serious error of judgment, because it is quite the opposite.
According to Céline Deluzarche, a journalist specializing in technological issues , laptops are equipped with a lithium-ion battery, which has the advantage of recharging quickly, but is damaged when it is subjected to too high a voltage.
RECHARGED AT NIGHT: disadvantages
According to the Berkeley Lab , a charger thus represents an average power of 3.68 watts when charging and 2.24 watts when it remains plugged into the mains while the battery is full. A useless waste of energy for you.
In addition, overloading your laptop can overheat the battery and in some cases cause it to ignite, as we saw with the Galaxy Note 7 which systematically caught fire in the event of an overload.
Automatic charging stop…
charge laptop at night
To avoid this overcharging phenomenon, most manufacturers have however equipped phones with systems that automatically stop the current when the charge is full. The problem is that even when not in use, the phone experiences a low discharge. As soon as the battery drops below a certain level, it will restart the charge again until it reaches 100%, and so on several times during the night. So many “minicharges” that wear out the battery prematurely and overheat the phone.
To increase battery life , it is commonly recommended by major tech labs, to always keep a charge between 30% and 80%, i.e. don’t wait for it to go completely flat. nor to load it to the maximum.
Why shouldn’t you charge the laptop at night
According to a previous study by the Lawrence Berkeley National Laboratory, leaving a charger connected alone to an AC outlet equates to an average power of 0.26 watts. When the phone be charged, it jumps to 3.68 watts. Finally, when charged to 100%, but still plugged into the mains, this figure drops to 2.24 Watt. As a general rule, the annual cost corresponding to the energy spent to recharge our smartphones is equivalent to 5.30 dollars or 4.55 euros for an average household. A cost which therefore remains negligible on an individual scale, but not for the environment.
Smartphone manufacturers have taken inspiration from laptop PCs to implement security to avoid any overheating of the battery that could lead to its explosion. When the smartphone battery is 100% charged, charging stops and then resumes. This leads to a redundant cycle which inevitably will make you consume a little more electricity. It is therefore strongly advised to charge the smartphone off during the night, if there is no other choice.
Of course, the question on everyone’s lips is: is it dangerous for the battery to leave your phone charging all night? Although the impacts remain minimal, the study specifies that in the long term, leaving a lithium-ion battery charged at 100% permanently or almost reduces its lifespan. Thus, according to experts, it is best to unplug it for short periods during charging.
By doing so, your smartphone will be in better condition.