Won't power on

Phone worked fine with the battery that was expanding. I replaced it with the Ifixit battery. Now it won't power up. No cables or connectors were broken or even bent. I tried holding power button, power and volume down and power and volume up. This was after I put it on the charger for 4 hours. Need help getting it turned on or getting the battery to take a charge or something. I took the back glass off again to make sure everything was fine. It was good but still nothing. This isn't my first time replacing batteries in Samsungs so u don't know what happened or what to do.