Can a performance chip laptop's battery be extended to be similar to a efficiency based laptop? - eviltoast

Hello everyone, I got a laptop with an i7-13700H and i concerned about the battery life. Im not a high power user, I mainly use my laptop to browse the web and do light microsoft work. The only reason I bought it was because the laptop was on sale and cheaper than the lower end models.

Im seeing my model last about 7-9 hrs and the lower AMD efficiency model last about 9-13 hrs. If i stick to these uses and not go into anything heavily performance based, will I see my laptop battery hold the same relative charge as a u-series processor?

Specs: 512 gb, 16gb ram, i7-13700H. $700