No, No, No.

That is an unnecessary admission of ignorance and defeat.

Fix the problem.

This topic comes up so often that we need to put an explanation post (or Tech Tip) to explain why 8v is not fixing the problem(s). Switching to an 8v battery is avoiding the problem(s).

https://www.stovebolt.com/ubbthreads/ubbthreads.php?ubb=showflat&Number=753220#Post753220