Unprotected flat top NCR18650GA 18650 cell, up to 10 amps continuous use. Made by Sanyo in Japan, this is one of the highest quality 18650s money can buy. If used in vapes, please note that the cell is a medium discharge, not a high discharge cell, so if your device draws more than 10 amps per cell, it may adversely affect the cell's life. This cell is ideal for building custom battery packs or to use in power tools and similar applications that require maximum capacity, reliability, safety, and high cycle life.