I'm posting this for Paul Doty...
Barely used Niterider Pro700 Kit with a spare battery.
The original kit came with the lightweight 4 cell battery, and then I purchased an extra 6 cell.
700 Lumens for just under 3 hours with the 4 cell, and just under 6 hours with the 6 cell.
This is the programmable system from Niterider, allowing you to custom design up to 8output settings to "fine tune" light output and burn time.
I bought this system to use in Moab around a month ago. Since then I haven't had much use for it, and find myself just cycling the batteries to make sure they continue to hold a charge.
$425 paypalled/shipped or $400 cash in person. I'm not on the internet a lot so texting me is the best way to get in touch 717-658-9445.