Originally Posted by
woodcraft
I hear you.
I keep going back to "Blackburn Click"- coin cell battery lasts pretty much all year and never leaves you in the dark.
Why can the equivalent USB one barely make it through one ride?
The problem isn't so much the battery. The USB chargeable lights are more powerful because the goal of that kind of light is different. It emphasizes putting out some real light, whereas the coin cell light is just to be there and say you have a light. You should have someone ride your bike and look for it. You won't really see it.