We might’ve found the bikepacking light we’ve been looking for.
The Lezyne Super Drive.
Some things I really liked right away with this light were the mounting location, which is slightly forward and above the handlebar bags, zero interference. But what makes it really cool? The USB rechargeable battery that is also removable. Yep, simply unscrew the battery out of the back and pop in a spare, which can be had for about 20 bucks. When you have the available juice, recharge the whole shebang with any USB cord.