Question about battery vs AC power?

Hi,

I have a question about Lenovo Thinkpad laptops. I have a P14s G1 with AMD R7 4750U, T14 G1 with AMD R7 4750U, and T14s G1 with AMD R7 4750U, I got each of them refurbished/used for a really good price.

I am wondering, will these laptops work and provide full power with the batteries removed?

My batteries are currently still doing fine, but I'm curious as the laptop batteries get older and eventually will need to be replaced or removed.

I'm hoping they will still be able to provide full performance in the future even if they have the battery removed as long as they are plugged into the wall.

I know Clevo/Sager laptops can generally perform at full power with the batteries removed, so I was wondering about ThinkPads.

Thanks in advance for taking the time to read this.