notebook does not turn on

[Crazydrawer83]

hi everyone, i recently bought a hp 250g7 notebook, i think it has a manufacturing defect, because it won't turn on if it is not powered with power supply, 

[WAWood]

@Crazydrawer83 

Not turning on with only the battery is NOT necessarily the "defect" that you claim -- it could more likely be a dead or failing battery.

You can test the battery by pressing the Esc key repeatedly while rebooting and when the HP Startup menu appears, select the option to run diagnostics -- usually F2.

You can check the battery to some extent using Powershell built into Windows 10. as follows:
1) Press Windows key + X
2) Click Powershell in the menu
3) Type powercfg /batteryreport

This will generate a report and if you scroll down, you will see Design Capacity and Full Charge Capacity ratings. If the Full Charge Capacity is less than 50% of the Design Capacity, it is faulty and needs to be replaced.

Also note the figure alongside the "Cycle Count". This tells how many times the battery has been fully recharged. A typical battery can handle around 500 charge cycles, but some will fail sooner than that.