I headed out on the usual trip to Bradford and back tonight, however 10 miles out, part way along a particularly dark bit of canal, my front light decided to stop working. I turned back and managed to limp the 5 miles back to Bathampton where I could pick up the roads and more importantly some street lights in order to get home again.
I suspect that the Lumicycle battery needs replacing. It’s only on it’s third winter of use, but the Solstice HID lamp unit isn’t quite so tolerent of low voltages which I suspect is where the problem lies.
Update: I think I’d miscalculated how much I’d used the battery since it’d last been charged.