> >>> ?Especially because for a rear LED light you want one
> >>> with multiple LEDs, at least two of which are side pointing. Buy a
> >>> CatEye TD-LD1100 for $28 and be done with it.
> >>> "http://www.lickbike.com/productpage.aspx?PART_NUM_SUB=%273340-00%27"
> >> Run it on 2900 mAh NiMHs and you are sorted.
> > Actually, a rear blinky is a great application for a low internal
> > discharge NiMH like the Rayovac Hybrid or Sanyo Eneloop. ?Even though
> > they hold 2000-2200mAh, which is less than a conventional NiMH, they
> > usually need less less frequent charging. ?They won't be ruined if you
> > forget about them for a year. ?A regular NiMH can easily lose more
> > juice to self-discharge than to running the blinky for a short time
> > each day.
> This is true. But in reality, a rear LED light lasts so long on a set of
> batteries that even alkalines are okay.
> One thing to be sure of is to get a rear flasher that uses AA cells, not
> AAA cells. The Blackburn Mars also has side pointing LEDs like the
> CatEye TD-LD1100, but it uses AAA batteries.