Does charging a cell phone overnight harm the battery?
Cell phones are basically charged once a day, and most people choose to charge them before go to bed, charge them overnight and the next day. Then unplug it, will this damage the phone? Come take a look together.
Nowadays, in many cases, people are inseparable from their cell phones. In order to resurrect their cell phone in full health the next day, they charge their cell phone before going to bed at night so that we can sleep. All night long. This only lasts one full night of charging. Many people wonder, will it damage their cell phone battery? How to recharge your cell phone battery so it lasts longer?
First of all, we need to clarify a problem, that is, the battery of current mobile phones is different.different from that of previous mobile phones. Do not charge it for more than ten hours when using it for. first time, because current mobile phone batteries are all lithium-ion batteries, they do not have memory function and can be charged at any time even if they run out of power.
Today, technology is more and more developed, and the security performance of mobile phones is getting stronger and stronger. Most mobile phones have charge protection features when your mobile phone is fully charged, even if it is mobile. The phone charger is not unplugged, the mobile phone will also automatically stop charging to protect the lithium battery of the mobile phone. Once the mobile phone is charged to more than 95% power, the mobile phone will start charging with micro current. without damagingbattery.
Of course, if the mobile phone is charged for a long time, the battery of the mobile phone will be in a high voltage state, which will shorten the battery life of the mobile phone.
So, is it better to load up on everything at once, or eat less and eat more often? Obviously, the latter solution is preferable. Frequent shallow charging and discharging of lithium-ion batteries will do more to extend battery life than deep charging and discharging. Therefore, when the cell phone battery is not enough, charge it if it is. not fully charged, you can unplug it, no need to charge too fully.
But don't use the phone while charging. When the temperature of the place where the phone is charged is too high and the phone is too hot, it is best to unplug iter to reduce damage to the battery. of the phone, so that it can be used longer and have better battery life.
Is it dangerous to charge a cell phone's lithium battery overnight?
There is no harm, because all smartphones are now equipped with PMU charging management chips, and when the phone is fully charged, it will not charge again. Today's lithium batteries are suitable for frequent charging and discharging. Once the battery is full, it will not be recharged again, so it is best to charge it while in use and keep the battery capacity between 10% and 95%.
"Lithium battery" is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses non-aqueous electrolyte solution. Lithium metal batteries have been proposed and studied forfirst reported by Gilbert N. Lewis in 1912.
Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium-ion batteries. Lithium-ion batteries do not contain metallic lithium and are rechargeable. The fifth generation product of rechargeable batteries, lithium metal batteries, was born in 1996. Its safety, specific capacity, self-discharge rate and performance-price ratio are better than those of lithium-ion batteries.
"Mobile phone charging suggestions:
1, Do not charge after the battery is completely exhausted, this will affect its lifespan
2. Do not use the mobile phone for a long time during the charging process, please wait until charging is completed before using the mobile phone
3. You have to wait until the device asks you “low battery” toload ; wait until the device turns off automatically before charging it, because the battery has been over-discharged. This affects battery life.
4. Don't overload. When the charger gives a full indication, the charger should be unplugged. Current chargers generally have an automatic shut-off system. It is acceptable not to remove the battery from the charger for a short time. However, if the battery remains connected to the charger for a long time, the grid voltage will increase. late at night, the voltage of the charger that stopped charging will increase after reaching a high level, charging will continue, causing the battery to overcharge. This affects battery life.
5. If the battery is not used for a long time, it should be charged to 60%, stored separately in a cool, dry place (applicable to models with removable batteries), and recharged every4 or 5 months.
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