The X-Tension is an add on middle section for the XXX and future modular tube mods from Vaperz Cloud. The X-Tension allows the use of 2 18650, or 2 20700 batteries to be used in compatible mods to run in 8.4V series configuration.
The X-Tension is designed with a fixed contact plate in the middle so the batteries do not have to physically touch each other. This allows for use of various brands of batteries and a solid contact at all times.
The X-Tension also includes a sleeve for use of 18650 batteries and the sleeve can be removed when using 20700 batteries.
The X-Tension includes a thread on beauty ring for use in 20700 configurations to keep the sleek appearance of the setup regardless of different batteries being used.