Alright, turns out upon a lot of research that there are two Head Trips, one Flight and lots of trimmings. After putting them on the Mini Brute charger, both HTs working well from the pocket and bottle NiMH packs. Attempting to get a rise out of the Flight batt pack with a 48 hr deep charge. Time will be up tomorrow noon. If I keep them, one HT will go on the helmet and the other on the handlebars as a backup to the Cygolite.