what?
im assuming your talking about the NIMH pack. the escapes battery pack (which is just several hundred "C" cell batteries) is somewhere in the area of 3 KWH. the ranger EV carries 34 KWH..apples and oranges.
of coarse the lead acid batteries that most of those trucks use isnt even compareable to the escapes battery pack.
and all models of ranger EV carried the batteries UNDER the bed, not IN the bed. the bed was as open and free for storage as yous or mine.
your electric bill will be higher, but electricity is many times cheaper per KWH than gasoline. if you do that math, you'll come to find that at most electric rates, it'll only cost about $1.49 to charge the trucks 34 KHW battery....thats the equivilent of getting 144 MPG or paying about 6 cents a gallon.