Battery life and charging issues have become the focus of attention for users. Many people habitually do not unplug the charger when charging at night, thinking that this can ensure that the phone has enough power the next day. Is this practice harmful to the battery, but it makes people wonder?
First of all, we need to understand that most modern smartphones are usedLithium batteries。Lithium batteries have higher energy density and longer service life than traditional batteries, but they also have their own "weaknesses". Both overcharging and over-discharging can cause damage to lithium batteries, which in turn can affect their performance and longevity.
When we charge our phone, once the charge reaches 100%, the charging process should theoretically stop. However, in reality, due to the differences in the circuit design of the charger and the mobile phone, as well as factors such as voltage and current fluctuations, sometimes the mobile phone will continue to receive weak current after reaching a full state. This "trickle-up" state, if it persists overnight, can cause overcharge stress on the battery, which can affect the life of the battery.
Prolonged charging may also cause the battery to overheat. While most modern phones have overheat protection mechanisms, long-term heat accumulation can still cause subtle changes to the battery's internal structure, which in turn can affect its performance.
"Battery belly" is a popular saying that refers to the expansion of batteries after a long period of charging. In fact, this phenomenon is indeed possible, but not for all batteries.
Battery swelling is usually caused by structural damage or abnormal chemical reactions inside the battery. When the battery is affected by improper use conditions such as overcharge, overdischarge, and high temperature, the separator inside the battery may be damaged, causing a short circuit between the positive and negative electrodes. In this case, a large amount of gas is generated inside the battery, causing the battery to swell.
Thankfully, modern smartphones have come a long way when it comes to battery management. Most mobile phones are equipped with multiple safety mechanisms such as overcharge protection, overdischarge protection, and temperature protection, which greatly reduces the probability of potential safety hazards such as battery expansion.
Since charging for a long time can cause damage to the battery, how can we properly charge the phone to prolong the life of the battery?
Use the original charger and cable:The original charger and data cable have the best compatibility with the mobile phone, which can ensure the stability of current and voltage, and reduce the damage to the battery.
Avoid overcharging:When the battery level of the mobile phone is close to full charge, you can consider unplugging the charger to avoid being in a trickle charging state for a long time.
Avoid charging in high or low temperature environments:High temperatures can accelerate the aging of the battery, while low temperatures can cause slower or interrupted charging.
Calibrate the battery regularly:By discharging to a low battery and then recharging, it can help the mobile phone battery calibrate the power display and improve the efficiency of the battery.
Avoid frequent full discharge of the battery:Try to keep the battery between 20% and 80% charged, which will reduce the strain on the battery and prolong its life.
Although charging the phone overnight may cause some damage to the battery, as long as we adopt the correct charging methods and habits, we can protect the battery to the greatest extent and prolong its service life. While enjoying the convenience of a smartphone, we should also pay attention to the health of the battery to ensure that it can provide us with stable power support when needed.