18650-21700 Battery Adapter
*Price shown is for one adapter only. (1pcs)
The Squid Industries 18650 Battery Adapter modifies any 18650 battery to be compatible with any 21700 battery mod.
Incredibly easy to use, all you have to do is insert your 18650 Battery (Battery not included) into the adapter, and it is ready to be used with your 21700 battery mod.