Trek CarBack Radar Rear Bike Light

Same here. My Varia is at least 5 years old now. I think I’ve seen it show low battery once and that was because I didn’t charge it for 2 or 3 rides.

Admittedly, I don’t do regular 5 or 6 hour rides - 3-3.5 hours was my standard Saturday ride.

I wonder if those with battery issues went in the app and set it to max brightness? I’m sure mine is set to the factory defaults.