Originally Posted by
lolguy
$55 to order the mount and battery through Cygolite. Was able to order a new 600 (primarily for those parts w/ the bonus of the additional lamp) from Amazon for $89 total.
$49 for those parts from Amazon. I don't see myself using 2 lights at the same time, or if I did (one on helmet perhaps), then I'd want a THIRD battery so that I would have a spare, and so I'd be spending most of that extra $49 anyway.
I dunno, getting the 600 seems like a good idea actually. It doesn't come with a helmet mount, but I could use the helmet mount that came with my 700, and then put the 600's mount on my MTB.