Laptop Cannot Charging, Battery Get High Voltage

Laptop Cannot Charging, Battery Get High Voltage about 20V from the DC jack, from the charger. This issue occurs due to a faulty MOSFET component on the laptop's motherboard, which causes the Vin line (receiving 20V from the charger) to connect with the BATT line, linked to the positive pin of the battery port.

This condition obviously disrupts the charging process, preventing the laptop from charging properly.

We know that the operating voltage of a laptop battery is typically no more than 12V, so 20V is far too high.

In the video below, we will see a detailed explanation of this issue, along with a demonstration of how to repair it, allowing the laptop and its charging process to return to normal.