How Was Your Commute Today?

[Melalvai]

Grrrr.
3 miles from home - I'm on a dark MUT and it's nearly full dark - and my headlight blinks out. Completely. Utterly. Went from bright high-beam glorious light flooding the trail, to....nothing.
Normally, the Li-Ion battery has a light that lights up when it is going weak. But it didn't this time. The light just blinked out without warning.
I'm hoping it's only that the battery is dead. It's on the charger now.
I don't have a spare battery for this light and don't normally carry a spare light. But I felt utterly exposed with no headlight (just my blinking LED on my helmet), despite the 3 lights I had on my back.
Perhaps I need to carry the Dinotte as a spare.....