The original from Fat Daddy directly from the USA.
Here the version 4 Low Profile, a special variation of the version 4 with not changeable and only 1mm thick Top Cap.
Different Top Cap sizes and options: 15mm, 22mm or 22mm Flat Top (without grooves).
Like version 4 (Regular) with up to 400Â° Celsius heat resistant o-rings and insulators and integrated one-piece power connector.
In addition to building your own mods, also ideal for repairing and improving purchased battery packs.