Windows 10: My laptop only turns on when charging and turns off immediately when unplugged even though...

Been working well for ages only just done this for the first time I couldn't turn it on even though it had been charging for ages so I plugged it in and it worked so I logged on and unplugged it and it instantly shut down.

:)

 

Laptop turns itself back on when unplugged

When I turn my laptop off and unplug it, it turns itself back on. If I shut it down while unplugged, it immediately restarts. If I shut it down while plugged in, it stays turned off. Need help to sort this please.

 

gigabyte mobo turns and turns off immediately

..i tried. 2 things happen..........it turns off immediately nd bootloop if it somehow stays on... after 3-4 attempts. never stays on at first go. had enough with gigabyte mobo..these only pisses u off *Stick Out Tongue

 

Laptop turns off & battery stuck at same percentage

Recently I've ran into the problem that my laptop shuts off randomly whenever its not charging and unplugged.
First my laptop ran smoothly with no problem for an hour or so without charging then suddenly turns off.
Now my laptop won't turn on without being charged and it turns off immediately when unplugging the charger. I've already replaced the battery so that doesn't seem to be the problem, so are there more things I could try to get my laptop working properly again? The battery says its charging aswell but that's not the case.