Very slow boot up to Windows but boots normally when taking oit the internal battery

[MOoD90s 0]

Hi,

A few days ago, my Lenovo Thinkpad T14 Gen5 machine worked normal but a couple of days ago I powered it on and it was trying to boot to Windows at the Lenovo logo screen and after 5 minutes it finally got to the Windows login screen.

There were no hardware changes at all i even bios is updated. Did the hard reset hole underneath the laptop and even purchased a new SSD. Tried everything. It even froze up when I attempted to boot from my Windows USB flash drive. Just loading and doing nothing for half an hour.

Then this morning I took out the internal battery plugging the charger and seems to work or boot normally now.

However, after booting into the desktop a pop-up message appeared that the battery is not detected.

My judgment is maybe a hardware problem but what else should I check or do?

Also ran hardware diagnostics but all passed.

I'll try and take it to a service center have them dig into this.

In the meantime can anyone ideas or suggestions?

Even reinstalled Windows without any lagging or freezes while using the laptop without the battery.