new Battery not working in Acer aspire a315 55g

Rapid7

Hi, I bought a new battery for my laptop, but windows does not detect it property. I have tried the below:

- the old and new battery have the exact same I'd number, voltage, etc

- the charger works properly for the old battery, so it most likely also works for the new one

- disabled fast boot in Windows

- uninstalled battery drivers and restarted, which auto-installed the drivers again

- pressed the pin hole and power button together, while no cables were connected. This is the last thing I tried, and at first the yellow light stays on. Then after a few minutes it starts blinking.

- reinstalled the old battery just to check the laptop port and related stuff, and it works perfectly.

Not sure how to proceed, please help.

I read about a 'safety interlock switch' but I am not sure what it is and how to adjust it.

Rapid7

Also, I can not boot the system with the new battery after pressing the pin hole and power button. It keeps turning on and off.

Before doing this, the computer booted with the new battery, but disconnecting the charger immediately shut down the laptop.