Okay... The weight of the 5305 is 24 pounds including the rim and spokes.

The eZee motor itself weighs 8 pounds, maybe 10 pounds with the rim and spokes?

So I guess I was wrong about the 20% figure, thought I had read that in the eZee description. I guess I just don't care that much about 14 pounds when it comes to a much more powerful and robust motor that can be limited if I want long distance travel between charges.

I just had another idea... if I limited my pack to 10 in series, I could use extra DeWalt Packs to increase my capacity for long distance travel. The DeWalt packs have exactly 10 of my cells in series, which is actually only 33v nominal while they rate the packs as 36v which is the peak charge voltage.

That would make a good option... I wouldn't be surprised if people are already using just the DeWalt packs with like 4 to 8 of them in parallel. Of course that would be pretty pricey, I got my cells used for much much less... about $5 per cell.