Before AW came out with the new 14500's, I picked up some E-fest 700 mah 14500's in button, and flat top. So far so good, they hold a charge just fine and each one gets me through a 3ml bottle. Now that AW has the higher capacity cells I'll be getting more of those down the road, they are performing really well in my mini's with 1.8Ω-2.0Ω coils. With the Japanese bottle I only need to carry an extra cell with me.