Efest 18650 Battery Case (2 Slots)
Efest 18650 Battery Case (2 Slots)
The Efest 18650 Battery Case is a protective plastic case for two 18650 batteries. If you plan on transporting extra batteries for you personal vaporizer in your bag or pocket you should know that it is unsafe to carry them unprotected, as other metallic objects, such a keys or other batteries, might affect their charge and create a power surge the next time you use them.