The increments difference is by design, hardware design that is. If your phone is showing 10% changes instead of 1%, then that's what it's capable of showing. The Droid is an example but there are few more out there.
The first two checkboxes will do this.
But checking battery level constantly is counter productive in normal use. You have to drain the battery a little bit to check its status. They warn you of that but it does work.