It seems like the range I get with my current set of 6 lead batteries is about 18 miles.
If I can charge even a little while out and about, it really helps the batteries. Keep in mind that these were all used batteries, that I paid $12 each for.
I don't expect my range to change much with a different controller. I would imagine that they are roughly the same efficiency.
For more information on various battery types, you might want to visit the EV Album page, where you can sort through car listings by component type, including batteries.
Battery Type: Lead-Acid, Gel