sounds a fair point to me, i tink people will gauge it against how much use they get from their C5, i'd say wel worth it for those who tootle to work on theirs for instance.
personally, always being 'time poor' due to having 5 grandkids and running a small business, i'll be lucky if i get to ride mine more than a dozen times in the summer, i've only rode once since buying it in October 09 so far
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a looked after low usage leisure battery will last usefully about 4 - 6 years, i'm curious what sort of 'shelf life' do the lipo's will likely have?
regs
alan