Yes it does.Does "external battery" mean a removable battery?
Internal batteries generally aren't removable, and charged while inside the mod via a microUSB cord.
External batteries are removed from the mod and charged in a dedicated box Li-Ion charger. This setup is generally preferred over charging via micoUSB.
-External charging is faster and arguably safer.
-All batteries have a finite life span. With an internal battery, when that battery ages and is no longer effective, the entire mod must be discarded.
-With external batteries, when the batteries are no longer effective, you simply replace them with a $5 - $6 replacement and continue using the same mod.
-The "weak link" with microUSBcharging is it can cause natural wear and tear of the charging port. The tiny microUSB connection is a poor design for daily charging purposes. The primary purpose of a microUSB port is for firmware updates for the processing chip.
-All batteries have a finite life span. With an internal battery, when that battery ages and is no longer effective, the entire mod must be discarded.
-With external batteries, when the batteries are no longer effective, you simply replace them with a $5 - $6 replacement and continue using the same mod.
-The "weak link" with microUSBcharging is it can cause natural wear and tear of the charging port. The tiny microUSB connection is a poor design for daily charging purposes. The primary purpose of a microUSB port is for firmware updates for the processing chip.

Guide to Choosing a Li-ion Battery Charger
Battery Basics for Mods: The Definative Battery Guide for Vaping
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