Same with the 18650's from UltraFire, but to an even greater extent. My original 18650's wouldn't even fit into the Ali'i. Like I said in the review, I had to send my mod back to Kaji because I was convinced something was wrong. Well, I was right, but it wasn't the Mod that was wrong...it was the batteries. The AW's are what he designs the Ali'i to use and I was not using the correct ones.
See the AW (red) vs the Ultrafire (grey). Both are supposed to be 18650's, but the Ultrafire is at least 2-3mm longer because of the protection circuit.
View attachment 20359View attachment 20360