Originally Posted by
Deal4Fuji
On the Hotshot the box says the light flickers when turning on/off, I didn't see anything on the headlight box about any low battery indicator.
The newest Cygolite Hotshots will flicker when turning on or off to indicate low battery. It might last 30 minutes to an hour on one of the flash modes before it goes dead. I have run my Hotshots dead many times.
The Expilion front light will start to flicker the light inside the power button when the battery gets low. The amount of flicker/flash increases as the battery gets lower, and the light output also reduces. I have run my Expilion 700 low many times, and completely dead a few times.
I have not noticed any apparent loss in battery life on any of the lights yet, and they are now entering their 3rd fall/winter season.