What sort of batteries do you install in that headlamp? I understand Petzls will only accommodate alkalines and cannot accept lithium batteries, which is the only type battery I would install in a light that would see (hopefully) intermittent use.
I use Energizer Ultra Lithium batteries in my Zipka Plus 2 and have not had any issues, and I've run that thing on high for hours.
The Zipka has the same head as the Tikka Plus 2 but with a retractable cord instead of an elastic headband. It takes a lot less space in my kit and is acceptably secure and comfortable, even for extended use.