Cheers guys some interesting points. To clarify my intention, he has 2x 500wh batteries so there are two possibilities;
- one of us goes out on our own for a mega ride with all 3 and 1625wh capacity and smash the whole ride in turbo with a massive grin.
- we both go together. My pal starts on 500wh. I start on the 625 and use half then take it out and replace with spare 500. My pal uses up his 500 then the remaining half of 625. We both have a full 500 and half of a 625. Enough for a decent ride.
since I see the biggest limitation of ebikes is battery capacity and since spare batteries are expensive, it seems to me that this should be a major deciding factor in which bike I choose, even to the point of making slight compromises elsewhere.