How does the power adapter determine the charging status of the battery

The power adapter is everywhere in our life, the mobile phone needs, the electric car needs, the computer also needs, the power adapter application can be said to be very extensive. A power adapter is basically a device that supplies power to an electronic device, so how do you tell if the battery is fully charged during use? Here's how to tell if the battery is fully charged by the charger:

In the process of charging, the power adapter generally needs to spend a period of time to determine whether the battery is fully charged or not, instead of being able to determine immediately, it is generally determined by the way the Power Supply is determined.

Now mainstream and recognized more accurate judgment way mainly - delta V and zero delta V, general high-grade charger is given priority to with these two kinds of judgment way, but after the battery into the charger and start, no matter electricity or no electricity, battery is full charge, the battery is not immediately appear or appear enough - delta V or zero delta V, but need to occur over a period of time or the said enough charger judgment - delta V or zero delta V, so the intelligent charger takes a while to determine was full charge the battery immediately.

On the contrary, the charger judged by the lowest voltage comparison method can judge the "full" battery in a short time, this is because the voltage comparison charger only judges the battery voltage, as long as the battery voltage reached, it will not care whether the battery is really full, are judged as "full". Typically, a battery at that voltage has a lot of room to reach saturation, meaning it's not really full. So this kind of judgment is generally only used on the lowest level of the power adapter.

Best regards,

Shirley Liang