Mounted the PWR Mountain to the handlebars, excellent luminosity and still charged after 2 hours of riding in the cold at full power.
Used the included PWR Helmet Extension Kit with a PWR Trail. I found it impractical both getting geared up (as the helmet is "attached" to your backpack) and restricted head movement on the trail. As with other reviews I found the cable to be too short and stiff even with the battery placed in the uppermost pouch of a backpack (Evoc FR Trail) and the mount in the middle opening of the helmet.
Guess I will purchase the PWR Helmet/GoPro Mount and deal with the additional weight of the battery on my head.…plus