Battery no longer charges after changing the battery?

I have a Huawei p8 lite 2017 and have changed the battery because the old one was always empty very quickly. Everything works as it should, except for the battery. When I want to load it, it shows for 1 second that it is charging, then not anymore. I've tried several charging cables and plugs, but none of them work. Does anyone know what I can do? I would appreciate a quick response. LG

Check all connections in the mobile phone / on the battery.

If everything is OK, check whether the battery can be charged from the cell phone.

How can I check whether it can also be charged outside?