I don't really care about "smaller"... but lighter would be great! Give me 60Ah is the same battery size and weight and I would be in heaven. I like amenities, being clean both showered, my clothes and my gear. I like options, being able to sleep where best suits me, the ability to cook with gas if I don't want to gather wood. Enough clothes and gear to stay warm and comfortable all year 'round. Trust me when I say I have "fine-tuned" what I take with me over the last couple of years. When I am close to home I get to vary those amenities depending on the season and what I want to be doing. Last month I was gold-panning on the white river for a few days. Next week I will load all my kites and spend some time on the coast.Through after some time with technical advances your "large" battery will become smaller and i'm guessing you will up the ante and still keep it large, or you will fine tune how much gear you tour with and probably require less Ah.