Xiaomi 13 Issues during charging

Hi guys on my Fuxi, the charging works so bad, sometimes it gave me to check the cable or the charger, but both are in perfect condition (the charger work but only slowing), this evening I'll try to charge my uncle 13T and it works perfectly, even in fast charging, actually I'm on OS2.0.100.0, anyone knows how can I fix it? (The charging port was clean on my phone already checked).
Thanks in Advance