Not long enough when u kick. Might try the bolt and a couple of extensions. Then u have 18500 and 18650 and the kick. Or just the bats. I'am at 8watts with any atty/tanks. Picked up another Bolt here
Vaping Xtreme E-Cig Clearance. On sale. The kick works great with this setup. U also can fine 18500 with 1600/1700 mah. Don't want a pocket full bats this works.