Tab S8

[BIBSG]

My new Tab S8 doesn't fast charge.

It's just 10/12 days since I had made the purchase, will Samsung replace the device or this goes under warranty/maintenance?

What should I do?

I tried cable and adapter swapping, my phone is working in all cable and fast charging.

[livealldaydrew]

Did you check the settings underneath the battery tab and enable fast charge it's disabled by default

[BIBSG]

Yeah all checked

[RazpberrY21]

Does your charging brick say "adaptive fast charging"? What are you using to charge the device?

[BIBSG]

Yes, my phone is charging.
I am using OEM 45 W charger.

[Tallman]

Is it because your Tab just showed cable charging?

[BIBSG]

Yes it's slow charging.

[Tallman]

How many hours you spent on fully charge? Could be the message not show fast charging, just cable charging?

[BIBSG]

It shows like 2 hours plus and actually takes that time.

[Tallman]

You may need to take your Tab to service. I think the battery has problem so that the Tab not engage Fast Charging.