26-28mph, no, not discouraging!
ok, so the math on that is .41ah/mile, or if I could use ALL the 20amp pack, 48 miles. Hills can cut that in half, at least on the up-hill side of the ride, and figure 80% drain (?) that's 20-22 miles.
Using 13wh and same 80%, that's 59 miles. THAT would be...