My battery weighs about 10 lbs. I carry it inside when I get home. Most ebike batteries have handles that make it easy to carry. I use panniers, they usually have more room than I need. I commute about 12 miles one way. I also commute on a regular bike on some days.

Battery range depends on what assist levels that you use. Typically, I use level 2/4 or 3/4 normally and in a rush respectively.