TLDR: if it has a USB output, you can pass-thru charge, more detail below...
Plug a USB power bank into the light from the start of the ride and it will charge while you go, giving you much more runtime when you need it, read on for more specific details.
Keep 'em charged and indoors when not in use, simply put. More specifics below...
Keep 'em charged and indoors when not in use, simply put. More specifics below...