The brightest battery powered light please
 

So far the brightest I can find is 250 lumens. I prefer batteries (AA or AAA rather than big external bricks) rather than USB because I occasionally tour and don't always have access to a USB outlet. I also would hate to forget to charge a USB light. I'm not a weight weeny so carrying two or three batteries in my bag is not a concern.

Any suggestions are welcome. Thank you.

www.fenixlighting.com

At least one is 350 lumes on high. Move up to 18650 batteries for the real deal.

If you want lumens, the bricks are better. My headlight is 3200 lumens and it's a dinotte lighting XML-6. Even at the half power setting, 1600 lumens is pretty nice. It allows me to see and avoid road issues, debris, and critters before I hit them.

If I were restricted to 250 or 350 lumens, I probably wouldn't ride at night. But then, I do most of my night riding in areas that lack street lighting. I depend on my lighting system for all my illumination.