Originally Posted by
cyccommute
And my point is that under the way that I use my lights, I would have to charge at work or carry another battery for each lamp. That's a significant investment based on the price of the lights and spare batteries...if the light allows for spare batteries which may not always be the case.
This is why I'd like to see more simple light heads that can run off a common 18650 pack; most of the Chinese headlights are already standardized at ~8V off two 18650s, (with two pairs paralleled as the "normal" included pack) and it wouldn't be hard to make taillights with the same power requirement and some decent flash patterns, plus this would allow a switch to be placed at the battery to turn on all the lights at once; no more getting off the bike after a scary street to find you forgot to turn your taillight on.
Heck, if they'd make decent lights for such a rig, I wouldn't mind building out a 2s/10p pack and case to put it in the triangle and only charge once a week for even my winter commute. Would even be worth throwing on a 5V regulator and USB port to keep my phone topped up at that point.