I also have a Cygolite 150 and I just don't like the thing. I don't find that the charge lasts very long, even when not in use. The flashing while charging is annoying too. I had planned to use this in combination with my Magnic Light rear light that runs off the rotating aluminum rim with no contact and no magnets. It is bright and always on. It has a standlight that is programmable, but I have yet to figure out the program. They aren't in widespread distribution but available. You'll have to look them up. The last alternative is the old standby Planet Bike Super Flash. The battery lasts a pretty long time and is always available to buy, and when they're off, they're off. I turned one on the other day on a bike that hadn't been out in about a year, and it worked just fine.