I think this is a very important question. In raw $/Wh lead acid wins hands down, so it might be due to other characteristics such as number of cycles that can

I think this is a very important question. In raw $/Wh lead acid wins hands down, so it might be due to other characteristics such as number of cycles that can be run, and peak load characteristics? Here is an overview of estimated cost for various battery types, does not include LiPo however. http://www.batteryuniversity.com/learn/article/cost_of_power http://www.batteryuniversity.com/learn/article/cost_of_power