My acpi -ib shows 51% should I be worried?

Screenshot from 2021-11-26 17-42-00
This is my system information.

After running the acpi -ib command I get : Battery 0: design capacity 3440 mAh, last full capacity 1769 mAh = 51%

Isnt this very low for a 1.5 year old laptop?

I read the man pages of acpi but couldn’t really understand much, can someone tell me the significance of acpi -ib command?
P.S Is there a way to increase the percentage?