Not turning on. New battery. Only turn on with charger plugged in and

I changed the battery since it was not charging at all, I got my first replacement it came a little bended right in the middle, where the connection is made, it worked fine for 2 days then it was not working at all, I just got my new battery and it turns out that when I plug it in it shows 75% the screen shuts off, then I press the HOME button and it shows the battery with electric ray like if I just plug it in.

Also it says for example 75% if I unplug it it will not turn on and I want to do a hard reset, it will only work if it's plugged in and with a minor move it will cut off the process.